Final PCB for the CNC Done (for now…)

Finished my fourth board in as many weeks, finishing off the bare minimum of boards I need to get the CNC mill back up and running.

This board mounts inside the machine itself, and connects via a cable back to the main PCB in the control. This board connects via screw terminals to the various homing and index sensors inside the mill, provides a little bit of signal conditioning, and converts to differential signalling for transmission over a long cable run near noisy stepper drive cables.

I expect this will not be the last board I do for the conversion, since there are other projects to tackle like the control pendant and spindle index sensor, but these four boards should at least allow me to get the mill back up and running, using my fancy new FPGA driver board, and with proper emergency stop capability! ┬áIt’ll be nice to tidy up the wiring and finally bolt down the components inside of the control box as well.

Related Posts

Project Frankenmill – Part 33, Claustrophobia

Final positions for the DIN rails and wire management have been nailed down. It’s much more tight than one should really wire a panel like this, but…

Project Frankenmill – Part 32, You’re Gonna Need a Bigger Boat

It seems to be a rule that no matter what size electronics enclosure you have, you will always have at least 10% more stuff that you need…

Project Frankenmill – Part 31, Full Pull

While I still haven’t gotten into the detail of squaring and tramming, I’ve been intensely curious to see if the new Z axis would be happier with…

Project Frankenmill – Alpha and Omega

Since 2009, I’ve been messing around with CNC machines. I started out with a small manual milling machine from Grizzly, and converted it to CNC using a…

Project Frankenmill – Part 30, Do You Even Lift Bro?

Hauled the column back down to the shop and mounted it back on the machine. Sure is a lot heavier than it used to be! Muscling things…

Project Frankenmill – Part 29, More Machining and Motion

Had some productive time in the shop during the holiday. First step was to make the counterbores for the M6 cap screws a bit deeper. Easy to…

This Post Has One Comment

Leave a Reply

Your email address will not be published. Required fields are marked *