Centroid Community CNC Support Forum

I am in process of retrofitting 5 machines with Acorn control

at least two will be offered for sale

question arises--is the unlock code stored in Centroid base pcb or Beagle Bone card ?

need to know this for restoration as documented in Marty's video on Beagle bone bricked card recovery

pulsenpal

Bridgeport Boss machines 3,4 5 and 6 used either superior or sigma step motors around 1100 oz inch holding torque the step motors were all 8 wire configured but BP had a unique method of center tap in each of the two opposing windings to create a 5 wire input which was neither series or parallel but...

Marty I never got the mpu 11 Romi retrofit operational because of faulty encoder solder connection- I discovered the mistake at the time of removal of system this was my third mpu 11 system --but as I noted my shop is a hostile machine environment--no heat mpu 11 employed analog signals---0 to +10 v...

pics of your graders trigger recall of RG LeTourneau and his chronicleer ---australian Philip Gowenlock

pics 2---------------------------------------------

file upload glitch--dimensions of images cannot be determined

never had a problem elsewhere


https://photos.google.com/share/AF1QipN ... E3Vk9lN1lR

Acorn retrofit underway on Romi cnc lathe the retrofit is a hybrid entity--when Acorn board is off and no computer/software active the lathe functions perfectly using encoder pulses from manual pulse generator wired directly to step drives this system requires DRO verification of positioning---this ...

thanks Keith

the spindle connector in my Romi lathe was wired for mpu-11

good to know it is a plug & play for Acorn

pulsenpal

are pinouts for Acorn spindle plug identical to mpu 11 board db-9 connector?

I was given a Hercus cnc lathe 25 yrs ago--educational bench model--OZ built and unrivaled with regard to heavy castings, working 6 tool turret, headstock but---entire control system /power components were mounted on single massive circuit board in base of machine--and these boards all failed worthw...

deleted cnc 12 fresh install cnc 12 4.10 booted program--all components working properly then loaded pro license--== all ok for historical intrest--Romi lathe Acorn will be running had cnc7 with pci slot interface board which I installed I lost two hard drives on desktop pc with cnc 7 board--IBM doe...