 Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me. |
Forum Index : Microcontroller and PC projects : CMM2 G2 V2 design files
  Page 4 of 5   |
|||||
| Author | Message | ||||
| ManiB Senior Member  Joined: 12/10/2019 Location: GermanyPosts: 141 |
Yes, I had this delivery sent all at once: 10 assembled circuit boards, 10 front panels, and 10 back panels. That way, I only had to pay shipping and customs fees once. I purchase the G738A cases from Estonia at www.gainta.com , where I bought the last 15 units. They will receive a new shipment of these cases at the end of October. I've already reserved 15 ;) |
||||
nbrok Regular Member  Joined: 13/02/2023 Location: NetherlandsPosts: 62 |
I have also received one of the CMM2 G2 V2 from Manfred, it looks very nice. It was also a lot cheaper then the colour maximite sold by Bugetronics.  A great job done.Greetings, Nick de pe1goo |
||||
| Volhout Guru  Joined: 05/03/2018 Location: NetherlandsPosts: 5628 |
Thanks, That is useful information, since the local electronics shop closed, and farnell is much more expensive. Volhout PicomiteVGA PETSCII ROBOTS |
||||
| ManiB Senior Member Joined: 12/10/2019 Location: GermanyPosts: 141 |
Hello forum members from Germany, I have received 10 new CMM2G2V2 boards, which I am currently testing and installing in a G738A case with black front and back panels made of PCB with white labels. I can offer them again for an incredibly low price of EUR 53 (including DHL shipping). If you are interested, please send me a PM or leave a message here at this german forum.classic-computing.de. Best regards, Manfred    Edited 2025-11-26 06:56 by ManiB |
||||
homa Guru Joined: 05/11/2021 Location: GermanyPosts: 531 |
Hello Mani, Do you also have a casing with the front panels available? I still have a circuit board, but no casing. Matthias aus dem Pott |
||||
| ManiB Senior Member Joined: 12/10/2019 Location: GermanyPosts: 141 |
Yes, asing with the panels are available for 10,50 EUR without shipping costs. Send me a PM. Manfred |
||||
| homa Guru Joined: 05/11/2021 Location: GermanyPosts: 531 |
Du hast Post  |
||||
| ManiB Senior Member Joined: 12/10/2019 Location: GermanyPosts: 141 |
Assembling a CMM2G2V2 is always a great pleasure ;)   10 x CMM2G2V2 circuit boards flashed with the latest version V6.00.00.b8 and functionally tested: No errors!  @homa, you'll get the G738A case together with the necessary screws, spacer bolts, washers, and rubber studs. Edited 2025-11-27 10:35 by ManiB |
||||
| homa Guru Joined: 05/11/2021 Location: GermanyPosts: 531 |
@Mani: Thank you! Everything arrived safely and has been assembled. It fits perfectly. Matthias |
||||
| kninja_pi Newbie  Joined: 02/07/2025 Location: United StatesPosts: 9 |
Is there a way to use an STLink with the CMM2 Gen2 V2? Thanks, kninja_pi |
||||
| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 10892 |
Yes, that is what the ICSP header is for. Bottom left in the pic above |
||||
| kninja_pi Newbie Joined: 02/07/2025 Location: United StatesPosts: 9 |
Thanks Peter :) |
||||
PilotPirx Senior Member Joined: 03/11/2020 Location: GermanyPosts: 109 |
The front and back panels from ManiB look great, but I'm having problems with the USC-C connector. It makes poor contact because it can't be inserted deeply enough. Are there any Type-C connectors with a longer plug (just the oval metal part)? |
||||
phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 2951 |
Assuming the hole in the back panel is large enough for your plug, check the USB-C socket with a magnifying glass to see if there is debris inside stopping the plug going all the way in. |
||||
| richship Newbie Joined: 08/05/2025 Location: United StatesPosts: 2 |
The CMM2 I bought from Rictech came with a cable with an extra-long connector: about 9mm vs. the regular 7mm. |
||||
PeteCotton Guru Joined: 13/08/2020 Location: CanadaPosts: 601 |
I had the same problem with a Latte-Panda computer recently. I put a strip of tape across the top (from the connector to the cable) and it has fixed the issue. I guess not all USB connectors are made equally. |
||||
| phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 2951 |
Perhaps more of the plug's metal shell can be exposed by trimming its plastic molding back a mm or two. Edited 2026-01-06 07:16 by phil99 |
||||
Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 8461 |
Is it the thickness of the rear panel that's causing the problem? Not all plugs are happy to lose about 2mm (1.6mm + a gap) for a panel. The easy solution is to open up the hole enough to take the entire plug size rather than just the end. It's usually not by much with those plugs. I've found in the past that the boxes are designed for a comfortable fit using 1.5mm panel thickness. Taking the copper off PCB material makes it just about right. I tried 1.2mm but the panels are a bit loose, although you can get the main board a bit closer for awkward components. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
||||
Grogster Admin Group  Joined: 31/12/2012 Location: New ZealandPosts: 9851 |
Yes, I discovered during my initial testing, that the "Standard length" USB-C plugs are not long enough for use with this unit. As already stated, the panel thickness means the standard USB-C connector only JUST makes contact. Breath near it, and the connection is lost. Luckily, USB-C leads with longer "Noses" on them are easy to come by on ebay or AliExpress etc, so no problem there. I decided to make it part of the package when I send out any CMM2G2, as it is VERY likely, that most people will have bucket-loads of standard USB-C leads, but you can bet they won't have a single long-nose one!  To avoid that causing issues with being able to USE the new toy you just received, I just include a long-nose USB-C lead with every unit now. Smoke makes things work. When the smoke gets out, it stops! |
||||
| phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 2951 |
I feel like I am reading the script for a Python sketch. Clearly the hole is too small for a standard plug, so make the hole big enough for the plastic molding of a standard plug! |
||||
| Page 4 of 5 |
|||||
 Print this page |
 |
The Back Shed's forum code is written, and hosted, in Australia. | © JAQ Software 2026 |
