I am getting ready to print and assemble this clock (and maybe some of the other electric clocks too!).
I purchased a bunch of the required parts (CNC from aliexpress, this one I planned to go next to my bed so I ordered the 0.9 steppers (17HS4401S-0.9), they seem to fit all the requirements.
I've already printed SP7 and posted in my Mini Factory, that is a beautiful clock which now sits at my nanna's house. I overcame double clicking by putting a small weight on the static Pawl, however retrospectively I don't think my second hand was solid so that may have resolved the double clicks as well.
The wiring diagram is very useful, however I wonder if there is a clear picture of the back of the CNC Shield V4 that would be easier to replicate? The technical explanation is useful but a bit over my head.
I also assume the 0.9 steppers will be fine for the SP6? I notice that other forum posts mention that the design was for the cheaper 1.8 degree steppers, however the ones I got were cheaper than the 1.6 degree ones in Aus.
Excited to build! I am planning on a Galaxy Black clone for the frame, and silver silk (Sunlu) for the cogs.
I ended up with the V1.2 TMC2208 they seem to work fine for the sp10. The biggest difference I can tell is the potentiometer is underneath instead of on top. So, you have to pull the board to make adjustments. Other than that, seems to work clock is keeping good time. I ended up with about 3/4 turn on pot to run good half and below would chatter unloaded. Does this seem correct adjustment as the other version Steve? And what is the version your using seemed to have missed that in the instructions.