Hi Jerry, If you etch, take care at this two close traces (see the screen capture attached). I haven't got time to fix them yet. Ok, I will resolve also the pinhead holes. Adrian YO4HHP ________________________________ From: "jerry@xxxxxxxxxxxxxxxx" <jerry@xxxxxxxxxxxxxxxx> To: minima@xxxxxxxxxxxxx Sent: Friday, January 31, 2014 11:23 AM Subject: [minima] Re: Minima PCB (eagle cad's) The new revision looks good Adrian, you addressed all the problems I had with the first board. I will etch this new revision later this morning. A suggestion for the digital board: pin headers need a 1mm drill hole, they won't push through a 1/32 hole. Thanks for all your hard work. Jerry K5LRU -------- Original Message -------- Subject: [minima] Re: Minima PCB (eagle cad's) From: Adrian Preda <ady.preda@xxxxxxxxx> Date: Thu, January 30, 2014 2:12 pm To: "minima@xxxxxxxxxxxxx" <minima@xxxxxxxxxxxxx> Hi Minimos, I made a revision for the PCB for factory or PnP/UV, so far the main board. Not to much free time this week, it was snowing like hell here. Some infos: Pads - 0.086 (~2.2mm) Transistors are 0.076 Routes - 0.04 inch Space between ground plane and routes 0.012 inches (~0.3mm) - a little close but I believe will work for PnP. Holes - 0.031 (0.8 mm) Trimmers 0.039 (1 mm) Please check if ok. You can print the layout and see at 1:1 if ok. Pdf file is A4 size paper. The board is a liitle larger now (~5mm on each side) because I wanted to add more gnd plane. I added some extra holes at trim caps if you want to put small package trims with 3 pins. PCB: http://cqyo.ro/up_files/Minima_MB_PCB_revA.pdf LAYOUT: http://cqyo.ro/up_files/Minima_MB_LAY_revA.pdf Eagle files of Mainboard: http://cqyo.ro/up_files/MinimaCADrevA.rar Adrian YO4HHP From: Ameer Khan <vu3sqm@xxxxxxxxx> To: minima@xxxxxxxxxxxxx Sent: Wednesday, January 29, 2014 3:04 PM Subject: [minima] Re: Minima PCB (eagle cad's) Dear friend, Is the module Si570, for the Minima is available in VU land ..? If so where and what may be the price. 73 VU3SQM Ameer khan ----- Original Message ----- From: ashok joshi To: minima@xxxxxxxxxxxxx Sent: 29 January, 2014 6:22 PM Subject: [minima] Re: Minima PCB (eagle cad's) Hi Sandeep two pcb sets for me pl. ashok vu2ash On Wed, Jan 29, 2014 at 10:52 AM, Mvs Sarma <mvssarma@xxxxxxxxx> wrote: Yes, well said Bhatnagar jee, Adrian has definitely struggled (played) around the design to present his end product. while there are umpkeen EDA packages in the world for PCB, re-inventing the wheel is waste of time. Let us make or buy the pcb using his pretty artwork and progress realizing Farhan's Minima. On Wed, Jan 29, 2014 at 9:35 AM, gurudatta panda <gurudattabam@xxxxxxxxx> wrote: I will suggest to go for Sprint Layout Editor for new commers, version 5 or 6. It is easy to use, auto route/manually route. And the important is you can make a library easily and save for future use. A newbee in PCB domain also can handle the Sprint, all problem is it needs a patch to work, evaluation version can not save files. It have gerber, drill data, silk screen export/import!! And this is not having auto part placement. (what I do is, use other software to auto place the parts first, copies the placement scheme manually in sprint). I am using this from several years, go for it and I am sure you will have fun. On Tue, Jan 28, 2014 at 11:14 PM, Adrian Preda <ady.preda@xxxxxxxxx> wrote: Guys don't worry. Today or maybe tommorow I will make a revision to the boards with bigger holes, pads and three pins trim caps option on the board. Adrian YO4HHP From: Sunil Thomas Thonikuzhiyil <vu2swx@xxxxxxxxx> To: minima@xxxxxxxxxxxxx Sent: Tuesday, January 28, 2014 7:04 PM Subject: [minima] Re: Minima PCB (eagle cad's) Hi all, I have exported Adrians eagle schematic to kicad. But my own skills in Kicad is limited. May be I will give it a try over the weekend. Sunil VU2SWX On Tue, Jan 28, 2014 at 10:09 PM, SP Bhatnagar <vu2spf@xxxxxxxxx> wrote: Sandeep and other friends have been discussing about PCB designed very swiftly by OM Adrian. I feel it is a professionally done board, compact and well laid. Definitely larger pads will be fine for hand soldering. If the adhesion is not good, copper detaches from the board on heating, specially in smaller pads/thin tracks. I think G5V2 and G5V1 equivalent relays are available in local markets in VU land. These are commonly used in some EPABX's. Larger relays with similar foot print are also available. If spacing is not adjustable, vertical mount should be OK. Two terminal trimmers are now seen in local markets too so these should be fine too. I have spent some time in designing a board using Ki-Cad and almost completed the schematic part (leave aside the continuous improvement!). Very time consuming for those who are not into it regularly. Converting to board is another task needing a lot of patience. Hats off to OM Adrian and those who are to further his job. Happy miniming, VU2SPF/ Bhatnagar -- -- Thanks & Regards Gurudatta Panda Jr. Site Engineer R.V.N.L. / KDJR Mob : +91 9777447844 (Work) +91 9778238593 (Home) -- Regards Sarma
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