All, To add to the excellent information Art has provided - I spoke with Candice Rincon at Phoenix Mecano and just received a quote from her for the end plates. There is a $100 minimum order policy at P-M, shipping and taxes additional. The end plates with gaskets and screws are $7.25 each so we'll need to order 14 end plates to meet the minimum; that's enough to do 7 enclosures. The plates are cast aluminum and are blank so you would need to drill your own holes per the diagrams Art provided. I don't know how many GPS kits were sold but if there's enough interest maybe we can do a group order. Steve WB0DBS > On Apr 28, 2017, at 1:18 AM, Art Sepin <art@synergy-gps.com> wrote: > > Folks, > > The TAPR GPS Kit documentation has been updated and revised for clarity (I hope). it includes details for purchasing end plates and also dimensions required to fabricate end plates. The TAPR GPS Kit document, and a motherboard schematic for reference, is now available on Synergy's "GPS for Scholars" page: > http://www.synergy-gps.com/index.php?option=com_content&task=view&id=54&Itemid=73 > > Art > > -----Original Message----- > From: time-nuts [mailto:time-nuts-bounces@febo.com] On Behalf Of Gregory Beat > Sent: Tuesday, March 28, 2017 11:48 AM > To: Larry McDavid <lmcdavid@lmceng.com>; time-nuts@febo.com > Subject: Re: [time-nuts] TAPR Oncore M12+ kit > > Larry - > > Interface Boards for Motorola (and Garmin) receivers have been discussed (and sold) by TAPR since late 1990s. TAPR archives all of this documentation, for discontinued GPS kits, can be seen on the left margin. > https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.tapr.org%2Fgps_exp-kit.html&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=5ruapgEiQudgnwP07FQuZd1RF2r23b0YTZnMagdcLkI%3D&reserved=0 > > Tom Clark, W3IWI Total Accurate Clock (TAC) project (1996) covers the entire topic. > https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.tapr.org%2Fkits_tac2.html&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=2ddW07UU31UDl5%2FQTy2DspkkX11FX00qrmKfc%2BRnNLw%3D&reserved=0 > > Simple interface board schematics (Serial Level converters, and voltage adjustments for external antennas/ 3.3 or 5 V) can be found throughout the Internet since mid-1990s. > Numerous radio amateurs DIY their own (breadboard) or sold small interfaces at hamfests (1996-2006), until newer GPS solutions became surplus (and smartphones with built-in GPS appeared after 2007). > > Doug McKinney, KC3RL (SK, December 2006) offered interface boards for the Garmin (GPS-25) and Motorola receivers until about 2005. I have one of Doug's boards in my GPS parts box. These were sold by TAPR until their inventory was exhausted. > -- > Garmin > https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.tapr.org%2Fgps_garminib.html&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=1rtHBUexr2FVGuHKY2qxBhzriCuFREe%2F6NAS7gi9RNY%3D&reserved=0 > Motorola > https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.tapr.org%2Fgps_vpib.html&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=R5%2FyBXV%2BAV2%2Fi3e%2BKfPlua5PKMhRqrbUwhIMPrbiArQ%3D&reserved=0 > > Synergy M12-MB board (web link to photo [jpg] below) IF you look closely at the Synergy Board, you see the board outline and 2x5 (10-pin) header for the earlier 8-channel Motorola receivers > https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.tapr.org%2Fimages%2FM12-MB.jpg&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=VnOToRye%2Be6pu62p6Os1ohPVVa%2FzDEFh1%2F0vo%2Fi5ag4%3D&reserved=0 > > greg > w9gb > > Sent from iPad Air > >> On Mar 28, 2017, at 12:18 PM, Larry McDavid <lmcdavid@lmceng.com> wrote: >> >> What "OEM supplier?" Do you mean from Synergy Systems? Or, is there an enclosure supplier to Synergy? >> >> Do you know if there is a schematic of the Synergy interface board available? >> >> Larry W6FUB >> >>> On 3/27/2017 9:31 AM, Gregory Beat wrote: >>> The TAPR offering is a "partial kit" from the Synergy's SynPaQ/E product. >>> Here is that data sheet: >>> https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.s >>> ynergy-gps.com%2Fimages%2Fstories%2Fpdf%2Fsynpaq%2520product%2520data >>> %2520sheet%2520040110.pdf&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2 >>> f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&s >>> data=WF1IWYKvN5q6C0WMToPljgax2dpKhBqLxTAyhvKrYzw%3D&reserved=0 >>> Blank aluminum end-plates can be fabricated, or purchased from the OEM supplier. >>> >>> w9gb >> -- >> Best wishes, >> >> Larry McDavid W6FUB >> Anaheim, California (SE of Los Angeles, near Disneyland) > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.febo.com%2Fcgi-bin%2Fmailman%2Flistinfo%2Ftime-nuts&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=aHBSvpbaodwO9tAMMGXMstwLQuQ5KqO3pPlWTuUypn4%3D&reserved=0 > and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

Hi Another possible answer for end plates is to 3D print them. Doing it cheaply is not going to do you any good EMI wise (it’s plastic). It will keep dust and bugs out of the enclosure. Doing it with a metal loaded material is probably less than $7 an endplate, but not as good looking as the “real thing”. If anybody wants to go that way, I’ll probably have a set of .stl’s done up soon. ( = I’ll give you the files, you do the printing). Contact off list. Bob > On Apr 28, 2017, at 4:56 AM, Steve - Home <steve-krull@cox.net> wrote: > > All, > > To add to the excellent information Art has provided - I spoke with Candice Rincon at Phoenix Mecano and just received a quote from her for the end plates. There is a $100 minimum order policy at P-M, shipping and taxes additional. The end plates with gaskets and screws are $7.25 each so we'll need to order 14 end plates to meet the minimum; that's enough to do 7 enclosures. The plates are cast aluminum and are blank so you would need to drill your own holes per the diagrams Art provided. > I don't know how many GPS kits were sold but if there's enough interest maybe we can do a group order. > > Steve > WB0DBS > > > >> On Apr 28, 2017, at 1:18 AM, Art Sepin <art@synergy-gps.com> wrote: >> >> Folks, >> >> The TAPR GPS Kit documentation has been updated and revised for clarity (I hope). it includes details for purchasing end plates and also dimensions required to fabricate end plates. The TAPR GPS Kit document, and a motherboard schematic for reference, is now available on Synergy's "GPS for Scholars" page: >> http://www.synergy-gps.com/index.php?option=com_content&task=view&id=54&Itemid=73 >> >> Art >> >> -----Original Message----- >> From: time-nuts [mailto:time-nuts-bounces@febo.com] On Behalf Of Gregory Beat >> Sent: Tuesday, March 28, 2017 11:48 AM >> To: Larry McDavid <lmcdavid@lmceng.com>; time-nuts@febo.com >> Subject: Re: [time-nuts] TAPR Oncore M12+ kit >> >> Larry - >> >> Interface Boards for Motorola (and Garmin) receivers have been discussed (and sold) by TAPR since late 1990s. TAPR archives all of this documentation, for discontinued GPS kits, can be seen on the left margin. >> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.tapr.org%2Fgps_exp-kit.html&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=5ruapgEiQudgnwP07FQuZd1RF2r23b0YTZnMagdcLkI%3D&reserved=0 >> >> Tom Clark, W3IWI Total Accurate Clock (TAC) project (1996) covers the entire topic. >> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.tapr.org%2Fkits_tac2.html&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=2ddW07UU31UDl5%2FQTy2DspkkX11FX00qrmKfc%2BRnNLw%3D&reserved=0 >> >> Simple interface board schematics (Serial Level converters, and voltage adjustments for external antennas/ 3.3 or 5 V) can be found throughout the Internet since mid-1990s. >> Numerous radio amateurs DIY their own (breadboard) or sold small interfaces at hamfests (1996-2006), until newer GPS solutions became surplus (and smartphones with built-in GPS appeared after 2007). >> >> Doug McKinney, KC3RL (SK, December 2006) offered interface boards for the Garmin (GPS-25) and Motorola receivers until about 2005. I have one of Doug's boards in my GPS parts box. These were sold by TAPR until their inventory was exhausted. >> -- >> Garmin >> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.tapr.org%2Fgps_garminib.html&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=1rtHBUexr2FVGuHKY2qxBhzriCuFREe%2F6NAS7gi9RNY%3D&reserved=0 >> Motorola >> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.tapr.org%2Fgps_vpib.html&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=R5%2FyBXV%2BAV2%2Fi3e%2BKfPlua5PKMhRqrbUwhIMPrbiArQ%3D&reserved=0 >> >> Synergy M12-MB board (web link to photo [jpg] below) IF you look closely at the Synergy Board, you see the board outline and 2x5 (10-pin) header for the earlier 8-channel Motorola receivers >> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.tapr.org%2Fimages%2FM12-MB.jpg&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=VnOToRye%2Be6pu62p6Os1ohPVVa%2FzDEFh1%2F0vo%2Fi5ag4%3D&reserved=0 >> >> greg >> w9gb >> >> Sent from iPad Air >> >>> On Mar 28, 2017, at 12:18 PM, Larry McDavid <lmcdavid@lmceng.com> wrote: >>> >>> What "OEM supplier?" Do you mean from Synergy Systems? Or, is there an enclosure supplier to Synergy? >>> >>> Do you know if there is a schematic of the Synergy interface board available? >>> >>> Larry W6FUB >>> >>>> On 3/27/2017 9:31 AM, Gregory Beat wrote: >>>> The TAPR offering is a "partial kit" from the Synergy's SynPaQ/E product. >>>> Here is that data sheet: >>>> https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.s >>>> ynergy-gps.com%2Fimages%2Fstories%2Fpdf%2Fsynpaq%2520product%2520data >>>> %2520sheet%2520040110.pdf&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2 >>>> f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&s >>>> data=WF1IWYKvN5q6C0WMToPljgax2dpKhBqLxTAyhvKrYzw%3D&reserved=0 >>>> Blank aluminum end-plates can be fabricated, or purchased from the OEM supplier. >>>> >>>> w9gb >>> -- >>> Best wishes, >>> >>> Larry McDavid W6FUB >>> Anaheim, California (SE of Los Angeles, near Disneyland) >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.febo.com%2Fcgi-bin%2Fmailman%2Flistinfo%2Ftime-nuts&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=aHBSvpbaodwO9tAMMGXMstwLQuQ5KqO3pPlWTuUypn4%3D&reserved=0 >> and follow the instructions there. >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

I've got some of those aluminum boxes. It is not hard to make your own end plates. All out need is either some aluminum strips (they sell them at Home Depot or a piece of copper clad PCB material and two screws. If you really want the interlocking groove then you make two plates for each end, one smaller to fit inside and one larger to cover the end of the box and laminate the two plates. The soft aluminum is easy to cut and shape with a sander or file. If you want to have them made for you, order a PCB, two sided from one of those PCB prototype places. Then they will drill the holes where you need them and you can have them print the labels using that while silkscreen legend. On Fri, Apr 28, 2017 at 1:56 AM, Steve - Home <steve-krull@cox.net> wrote: > All, > > To add to the excellent information Art has provided - I spoke with > Candice Rincon at Phoenix Mecano and just received a quote from her for the > end plates. There is a $100 minimum order policy at P-M, shipping and taxes > additional. The end plates with gaskets and screws are $7.25 each so we'll > need to order 14 end plates to meet the minimum; that's enough to do 7 > enclosures. The plates are cast aluminum and are blank so you would need to > drill your own holes per the diagrams Art provided. > I don't know how many GPS kits were sold but if there's enough interest > maybe we can do a group order. > > Steve > WB0DBS > > > > > On Apr 28, 2017, at 1:18 AM, Art Sepin <art@synergy-gps.com> wrote: > > > > Folks, > > > > The TAPR GPS Kit documentation has been updated and revised for clarity > (I hope). it includes details for purchasing end plates and also dimensions > required to fabricate end plates. The TAPR GPS Kit document, and a > motherboard schematic for reference, is now available on Synergy's "GPS for > Scholars" page: > > http://www.synergy-gps.com/index.php?option=com_content& > task=view&id=54&Itemid=73 > > > > Art > > > > -----Original Message----- > > From: time-nuts [mailto:time-nuts-bounces@febo.com] On Behalf Of > Gregory Beat > > Sent: Tuesday, March 28, 2017 11:48 AM > > To: Larry McDavid <lmcdavid@lmceng.com>; time-nuts@febo.com > > Subject: Re: [time-nuts] TAPR Oncore M12+ kit > > > > Larry - > > > > Interface Boards for Motorola (and Garmin) receivers have been discussed > (and sold) by TAPR since late 1990s. TAPR archives all of this > documentation, for discontinued GPS kits, can be seen on the left margin. > > https://na01.safelinks.protection.outlook.com/?url= > https%3A%2F%2Fwww.tapr.org%2Fgps_exp-kit.html&data=01% > 7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3% > 7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata= > 5ruapgEiQudgnwP07FQuZd1RF2r23b0YTZnMagdcLkI%3D&reserved=0 > > > > Tom Clark, W3IWI Total Accurate Clock (TAC) project (1996) covers the > entire topic. > > https://na01.safelinks.protection.outlook.com/?url= > https%3A%2F%2Fwww.tapr.org%2Fkits_tac2.html&data=01%7C01% > 7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3% > 7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=2ddW07UU31UDl5% > 2FQTy2DspkkX11FX00qrmKfc%2BRnNLw%3D&reserved=0 > > > > Simple interface board schematics (Serial Level converters, and voltage > adjustments for external antennas/ 3.3 or 5 V) can be found throughout the > Internet since mid-1990s. > > Numerous radio amateurs DIY their own (breadboard) or sold small > interfaces at hamfests (1996-2006), until newer GPS solutions became > surplus (and smartphones with built-in GPS appeared after 2007). > > > > Doug McKinney, KC3RL (SK, December 2006) offered interface boards for > the Garmin (GPS-25) and Motorola receivers until about 2005. I have one of > Doug's boards in my GPS parts box. These were sold by TAPR until their > inventory was exhausted. > > -- > > Garmin > > https://na01.safelinks.protection.outlook.com/?url= > https%3A%2F%2Fwww.tapr.org%2Fgps_garminib.html&data=01% > 7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3% > 7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata= > 1rtHBUexr2FVGuHKY2qxBhzriCuFREe%2F6NAS7gi9RNY%3D&reserved=0 > > Motorola > > https://na01.safelinks.protection.outlook.com/?url= > https%3A%2F%2Fwww.tapr.org%2Fgps_vpib.html&data=01%7C01% > 7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3% > 7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=R5%2FyBXV%2BAV2%2Fi3e% > 2BKfPlua5PKMhRqrbUwhIMPrbiArQ%3D&reserved=0 > > > > Synergy M12-MB board (web link to photo [jpg] below) IF you look closely > at the Synergy Board, you see the board outline and 2x5 (10-pin) header for > the earlier 8-channel Motorola receivers > > https://na01.safelinks.protection.outlook.com/?url= > https%3A%2F%2Fwww.tapr.org%2Fimages%2FM12-MB.jpg&data=01% > 7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3% > 7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=VnOToRye% > 2Be6pu62p6Os1ohPVVa%2FzDEFh1%2F0vo%2Fi5ag4%3D&reserved=0 > > > > greg > > w9gb > > > > Sent from iPad Air > > > >> On Mar 28, 2017, at 12:18 PM, Larry McDavid <lmcdavid@lmceng.com> > wrote: > >> > >> What "OEM supplier?" Do you mean from Synergy Systems? Or, is there an > enclosure supplier to Synergy? > >> > >> Do you know if there is a schematic of the Synergy interface board > available? > >> > >> Larry W6FUB > >> > >>> On 3/27/2017 9:31 AM, Gregory Beat wrote: > >>> The TAPR offering is a "partial kit" from the Synergy's SynPaQ/E > product. > >>> Here is that data sheet: > >>> https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.s > >>> ynergy-gps.com%2Fimages%2Fstories%2Fpdf%2Fsynpaq%2520product%2520data > >>> %2520sheet%2520040110.pdf&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2 > >>> f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&s > >>> data=WF1IWYKvN5q6C0WMToPljgax2dpKhBqLxTAyhvKrYzw%3D&reserved=0 > >>> Blank aluminum end-plates can be fabricated, or purchased from the OEM > supplier. > >>> > >>> w9gb > >> -- > >> Best wishes, > >> > >> Larry McDavid W6FUB > >> Anaheim, California (SE of Los Angeles, near Disneyland) > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to > https://na01.safelinks.protection.outlook.com/?url= > https%3A%2F%2Fwww.febo.com%2Fcgi-bin%2Fmailman% > 2Flistinfo%2Ftime-nuts&data=01%7C01%7Cart%40synergy-gps.com% > 7C4dc2f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0ca > d9ed%7C1&sdata=aHBSvpbaodwO9tAMMGXMstwLQuQ5KqO3pPlWTuUypn4%3D&reserved=0 > > and follow the instructions there. > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > -- Chris Albertson Redondo Beach, California

Hi If you go with the PCB approach, the nice thing is getting stuff like the slot for the D connector done at the PCB fab. That way you have something that drops right in and works. The downside is that not every pcb house is happy doing that sort of “CNC work”. I have absolutely no idea why. They all have to run some sort of gear to cut the boards apart. Cutting slots or weird holes with it is pretty trivial. Bob > On Apr 28, 2017, at 11:08 AM, Chris Albertson <albertson.chris@gmail.com> wrote: > > I've got some of those aluminum boxes. It is not hard to make your own > end plates. All out need is either some aluminum strips (they sell them > at Home Depot or a piece of copper clad PCB material and two screws. If > you really want the interlocking groove then you make two plates for each > end, one smaller to fit inside and one larger to cover the end of the box > and laminate the two plates. The soft aluminum is easy to cut and shape > with a sander or file. > > If you want to have them made for you, order a PCB, two sided from one of > those PCB prototype places. Then they will drill the holes where you need > them and you can have them print the labels using that while silkscreen > legend. > > On Fri, Apr 28, 2017 at 1:56 AM, Steve - Home <steve-krull@cox.net> wrote: > >> All, >> >> To add to the excellent information Art has provided - I spoke with >> Candice Rincon at Phoenix Mecano and just received a quote from her for the >> end plates. There is a $100 minimum order policy at P-M, shipping and taxes >> additional. The end plates with gaskets and screws are $7.25 each so we'll >> need to order 14 end plates to meet the minimum; that's enough to do 7 >> enclosures. The plates are cast aluminum and are blank so you would need to >> drill your own holes per the diagrams Art provided. >> I don't know how many GPS kits were sold but if there's enough interest >> maybe we can do a group order. >> >> Steve >> WB0DBS >> >> >> >>> On Apr 28, 2017, at 1:18 AM, Art Sepin <art@synergy-gps.com> wrote: >>> >>> Folks, >>> >>> The TAPR GPS Kit documentation has been updated and revised for clarity >> (I hope). it includes details for purchasing end plates and also dimensions >> required to fabricate end plates. The TAPR GPS Kit document, and a >> motherboard schematic for reference, is now available on Synergy's "GPS for >> Scholars" page: >>> http://www.synergy-gps.com/index.php?option=com_content& >> task=view&id=54&Itemid=73 >>> >>> Art >>> >>> -----Original Message----- >>> From: time-nuts [mailto:time-nuts-bounces@febo.com] On Behalf Of >> Gregory Beat >>> Sent: Tuesday, March 28, 2017 11:48 AM >>> To: Larry McDavid <lmcdavid@lmceng.com>; time-nuts@febo.com >>> Subject: Re: [time-nuts] TAPR Oncore M12+ kit >>> >>> Larry - >>> >>> Interface Boards for Motorola (and Garmin) receivers have been discussed >> (and sold) by TAPR since late 1990s. TAPR archives all of this >> documentation, for discontinued GPS kits, can be seen on the left margin. >>> https://na01.safelinks.protection.outlook.com/?url= >> https%3A%2F%2Fwww.tapr.org%2Fgps_exp-kit.html&data=01% >> 7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3% >> 7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata= >> 5ruapgEiQudgnwP07FQuZd1RF2r23b0YTZnMagdcLkI%3D&reserved=0 >>> >>> Tom Clark, W3IWI Total Accurate Clock (TAC) project (1996) covers the >> entire topic. >>> https://na01.safelinks.protection.outlook.com/?url= >> https%3A%2F%2Fwww.tapr.org%2Fkits_tac2.html&data=01%7C01% >> 7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3% >> 7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=2ddW07UU31UDl5% >> 2FQTy2DspkkX11FX00qrmKfc%2BRnNLw%3D&reserved=0 >>> >>> Simple interface board schematics (Serial Level converters, and voltage >> adjustments for external antennas/ 3.3 or 5 V) can be found throughout the >> Internet since mid-1990s. >>> Numerous radio amateurs DIY their own (breadboard) or sold small >> interfaces at hamfests (1996-2006), until newer GPS solutions became >> surplus (and smartphones with built-in GPS appeared after 2007). >>> >>> Doug McKinney, KC3RL (SK, December 2006) offered interface boards for >> the Garmin (GPS-25) and Motorola receivers until about 2005. I have one of >> Doug's boards in my GPS parts box. These were sold by TAPR until their >> inventory was exhausted. >>> -- >>> Garmin >>> https://na01.safelinks.protection.outlook.com/?url= >> https%3A%2F%2Fwww.tapr.org%2Fgps_garminib.html&data=01% >> 7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3% >> 7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata= >> 1rtHBUexr2FVGuHKY2qxBhzriCuFREe%2F6NAS7gi9RNY%3D&reserved=0 >>> Motorola >>> https://na01.safelinks.protection.outlook.com/?url= >> https%3A%2F%2Fwww.tapr.org%2Fgps_vpib.html&data=01%7C01% >> 7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3% >> 7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=R5%2FyBXV%2BAV2%2Fi3e% >> 2BKfPlua5PKMhRqrbUwhIMPrbiArQ%3D&reserved=0 >>> >>> Synergy M12-MB board (web link to photo [jpg] below) IF you look closely >> at the Synergy Board, you see the board outline and 2x5 (10-pin) header for >> the earlier 8-channel Motorola receivers >>> https://na01.safelinks.protection.outlook.com/?url= >> https%3A%2F%2Fwww.tapr.org%2Fimages%2FM12-MB.jpg&data=01% >> 7C01%7Cart%40synergy-gps.com%7C4dc2f4b8f72f4e2fc73108d47615ead3% >> 7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&sdata=VnOToRye% >> 2Be6pu62p6Os1ohPVVa%2FzDEFh1%2F0vo%2Fi5ag4%3D&reserved=0 >>> >>> greg >>> w9gb >>> >>> Sent from iPad Air >>> >>>> On Mar 28, 2017, at 12:18 PM, Larry McDavid <lmcdavid@lmceng.com> >> wrote: >>>> >>>> What "OEM supplier?" Do you mean from Synergy Systems? Or, is there an >> enclosure supplier to Synergy? >>>> >>>> Do you know if there is a schematic of the Synergy interface board >> available? >>>> >>>> Larry W6FUB >>>> >>>>> On 3/27/2017 9:31 AM, Gregory Beat wrote: >>>>> The TAPR offering is a "partial kit" from the Synergy's SynPaQ/E >> product. >>>>> Here is that data sheet: >>>>> https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.s >>>>> ynergy-gps.com%2Fimages%2Fstories%2Fpdf%2Fsynpaq%2520product%2520data >>>>> %2520sheet%2520040110.pdf&data=01%7C01%7Cart%40synergy-gps.com%7C4dc2 >>>>> f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0cad9ed%7C1&s >>>>> data=WF1IWYKvN5q6C0WMToPljgax2dpKhBqLxTAyhvKrYzw%3D&reserved=0 >>>>> Blank aluminum end-plates can be fabricated, or purchased from the OEM >> supplier. >>>>> >>>>> w9gb >>>> -- >>>> Best wishes, >>>> >>>> Larry McDavid W6FUB >>>> Anaheim, California (SE of Los Angeles, near Disneyland) >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to >> https://na01.safelinks.protection.outlook.com/?url= >> https%3A%2F%2Fwww.febo.com%2Fcgi-bin%2Fmailman% >> 2Flistinfo%2Ftime-nuts&data=01%7C01%7Cart%40synergy-gps.com% >> 7C4dc2f4b8f72f4e2fc73108d47615ead3%7Cc81f9fdec0e04d8c95779afaa0ca >> d9ed%7C1&sdata=aHBSvpbaodwO9tAMMGXMstwLQuQ5KqO3pPlWTuUypn4%3D&reserved=0 >>> and follow the instructions there. >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to https://www.febo.com/cgi-bin/ >> mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/ >> mailman/listinfo/time-nuts >> and follow the instructions there. >> > > > > -- > > Chris Albertson > Redondo Beach, California > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

  From: Bob kb8tq <kb8tq@n1k.org>

Hi Bob, It may be because the process of cutting the boards apart is not part of the board milling process.  Yes, cutting holes in boards for through-hole parts is part of the business - round holes.  The fab house for OSHPark won't make oval holes.  They won't overlap two holes, either, nor make square notches.  This is only a guess, but I'd say that this is because they use actual drill bits to make those holes, rather than a laser.  Drill bits are expensive, and it takes a lot of time to change a drill bit when you've got hundreds of boards to mill.  It's not something I would want to do, either, without a serious penalty for the customer for a broken bit due to odd shaped holes and missed deadlines. And OSHPark seems to use different fab houses for the small runs vs the large (10+) runs.  With the small runs, the boards are connected to each other by small tabs.  Often small boards arrive still tabbed together.  I don't know whether they route the distance between these tabs, or use a laser.  On the larger runs, there are no tabs, and the board edges are smooth, as if they were cut apart in one single operation not part of the milling process. NB, I don't work for a fab house, nor have I ever toured one. Bob From: Bob kb8tq <kb8tq@n1k.org> To: Discussion of precise time and frequency measurement <time-nuts@febo.com> Sent: Friday, April 28, 2017 1:06 PM Subject: Re: [time-nuts] TAPR Oncore M12+ kit Hi If you go with the PCB approach, the nice thing is getting stuff like the slot for the D connector done at the PCB fab. That way you have something that drops right in and works. The downside is that not every pcb house is happy doing that sort of “CNC work”.  I have absolutely no idea why. They all have to run some sort of gear to cut the boards apart. Cutting slots or weird holes with it is pretty trivial. Bob

On 4/28/17 10:09 AM, Bob kb8tq wrote: > Hi > > If you go with the PCB approach, the nice thing is getting stuff like > the slot for the D connector done at the PCB fab. That way you > have something that drops right in and works. The downside is that > not every pcb house is happy doing that sort of “CNC work”. I > have absolutely no idea why. They all have to run some sort of gear > to cut the boards apart. Cutting slots or weird holes with it is pretty > trivial. > > Bob what about Front Panel Express? They're in the whole business of small run panels. Not the cheapest place around, and you use their design tool, but I've been happy with the quality of their work.

Milling internally and externally to the perimeter of the board is a price adder, but is routinely done and not expensive. I've done round PCBs with large, oddly shaped "round" holes in the middle, impossible to drill. I've done PCBs where the outer corners had to be milled to a specific radius. I hold a patent on milling out a serpentine spring from the PCB material to support a magnetic read head. (Saved us a ton in expenses for springs, brackets, screws and cables!) Some of these low end shops may not actually have a mill, they may only have drills. You sure wouldn’t want to try to mill with a PCB drill bit. If they are objecting to milling, use a different shop.

Is there a way I can help with this project? If I had the specs to look at, maybe I would be able to run off a bunch of plates. If we could batch them up I would do them for the cost of shipping. Does anyone have a dimensioned print, picture, cad drawing of the plates? > On Apr 28, 2017, at 11:33 AM, jimlux <jimlux@earthlink.net> wrote: > > On 4/28/17 10:09 AM, Bob kb8tq wrote: >> Hi >> >> If you go with the PCB approach, the nice thing is getting stuff like >> the slot for the D connector done at the PCB fab. That way you >> have something that drops right in and works. The downside is that >> not every pcb house is happy doing that sort of “CNC work”. I >> have absolutely no idea why. They all have to run some sort of gear >> to cut the boards apart. Cutting slots or weird holes with it is pretty >> trivial. >> >> Bob > > what about Front Panel Express? They're in the whole business of small run panels. Not the cheapest place around, and you use their design tool, but I've been happy with the quality of their work. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

  From: Bob kb8tq <kb8tq@n1k.org>

Hi If you ever get a chance to visit a PCB fab it’s an interesting sort of process. No two of them are quite the same. The gear they have does impact what they can or can’t do. Every one I have ever visited has done routing on the boards. That may be because it is a very common requirement on industrial boards. Essentially they just swap out he drill bit for a routing bit and go with it. It’s not quite that simple, but almost. The big reason you don’t see it done on the low end boards is that it takes time. The machine isn’t a cheap item so in this case time is money. It’s the same reason a “real” fab will hit you with a charge for the number of holes you want on the board. Same basic issue - time on the machine. Bob > On Apr 28, 2017, at 2:31 PM, Bob Stewart <bob@evoria.net> wrote: > > Hi Bob, > It may be because the process of cutting the boards apart is not part of the board milling process. Yes, cutting holes in boards for through-hole parts is part of the business - round holes. The fab house for OSHPark won't make oval holes. They won't overlap two holes, either, nor make square notches. This is only a guess, but I'd say that this is because they use actual drill bits to make those holes, rather than a laser. Drill bits are expensive, and it takes a lot of time to change a drill bit when you've got hundreds of boards to mill. It's not something I would want to do, either, without a serious penalty for the customer for a broken bit due to odd shaped holes and missed deadlines. > > And OSHPark seems to use different fab houses for the small runs vs the large (10+) runs. With the small runs, the boards are connected to each other by small tabs. Often small boards arrive still tabbed together. I don't know whether they route the distance between these tabs, or use a laser. On the larger runs, there are no tabs, and the board edges are smooth, as if they were cut apart in one single operation not part of the milling process. > > NB, I don't work for a fab house, nor have I ever toured one. > > Bob > > > > From: Bob kb8tq <kb8tq@n1k.org> > To: Discussion of precise time and frequency measurement <time-nuts@febo.com> > Sent: Friday, April 28, 2017 1:06 PM > Subject: Re: [time-nuts] TAPR Oncore M12+ kit > > Hi > > If you go with the PCB approach, the nice thing is getting stuff like > the slot for the D connector done at the PCB fab. That way you > have something that drops right in and works. The downside is that > not every pcb house is happy doing that sort of “CNC work”. I > have absolutely no idea why. They all have to run some sort of gear > to cut the boards apart. Cutting slots or weird holes with it is pretty > trivial. > > Bob > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

Hi The dimensions, including the holes that need to be CNC’d into the plates are attached an earlier message in this thread. The main link is: http://www.synergy-gps.com/index.php?option=com_content&task=view&id=54&Itemid=73 <http://www.synergy-gps.com/index.php?option=com_content&task=view&id=54&Itemid=73> The dimensions are at the bottom of: http://www.synergy-gps.com/images/stories/pdf/tapr%20gps%20kit.pdf <http://www.synergy-gps.com/images/stories/pdf/tapr%20gps%20kit.pdf> The one that is the bigger issue is the “front” that has the D hole and a connector for a normal 9 pin serial connector. Bob > On Apr 28, 2017, at 3:19 PM, Jerry Hancock <jerry@hanler.com> wrote: > > Is there a way I can help with this project? If I had the specs to look at, maybe I would be able to run off a bunch of plates. If we could batch them up I would do them for the cost of shipping. > > Does anyone have a dimensioned print, picture, cad drawing of the plates? > > > >> On Apr 28, 2017, at 11:33 AM, jimlux <jimlux@earthlink.net> wrote: >> >> On 4/28/17 10:09 AM, Bob kb8tq wrote: >>> Hi >>> >>> If you go with the PCB approach, the nice thing is getting stuff like >>> the slot for the D connector done at the PCB fab. That way you >>> have something that drops right in and works. The downside is that >>> not every pcb house is happy doing that sort of “CNC work”. I >>> have absolutely no idea why. They all have to run some sort of gear >>> to cut the boards apart. Cutting slots or weird holes with it is pretty >>> trivial. >>> >>> Bob >> >> what about Front Panel Express? They're in the whole business of small run panels. Not the cheapest place around, and you use their design tool, but I've been happy with the quality of their work. >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.