Now that we have an operational timing circuit, we can assemble the main chassis of the Babbage cymac and hopefully not neet to poke around inside anymore. The lid does not fit on top due to the bulk of the pcie extension cables, so Daniel is going to cut a hole in the top and the cables will poke out.
Notes from assembly:
- The standoff holes on the General Standards ADC and DAC are a bit small for the 6-32 standoffs. However the standoffs are nylon and can be forced through.
- The angle brackets for holding the Adnacom backplane in place are not the correct size. Daniel made something work but it required stacking 7 washers to make a spacer.
- The main headache of this assembly are the pcie extension cables. Most of the cables Todd and I can find on Amazon are quite bulky, and there is very little room to fit them between the PCBs and the walls of the chassis. I ordered a few types and tried a few of Todd's, and they are all bulky. Todd has some old ones that work well but he can't find them sold online anymore. Instead of continuing to deal with this issue we are cutting a hole in the chassis.
Big todos on this project are to order the input/output PCBs (for whitening, dewhitening, and possibly other tasks?), and to push the software along so that we can begin communicating with the ADCs and DACs.
The assembled chassis with part of the lid removed to accomodate the pcie cables.