Hello everyone!

I love this forum!

I am almost complete with my CHNC4 to mach 3 conversion, however I am having an issue, the spindle speed is not trying to correct to the commanded spindle speed position.

Here is a quick video.

https://www.youtube.com/watch?v=FjkSUMz8I6o

Any help guys?

I have an Ethernet Smooth Stepper with a c23 board. I can change the spindle speed manual with the speed box, but it will not try to correct to the commanded speed.

THANK YOU ALL SO MUCH!

does this help at all?

http://www.warp9td.com/index.php/faq/f-a-q-mach3#Spindle

(sorry not set up a spindle before)

... it is specifically for the ESS ... and there are settings on the SS config page too

Rob

Thank you for the link, I tried that and that but it still does not attempt to correct the speed for commanded... :|

Thanks tho!

The last item ... Does this not provide a calibration for the DRO
Finally go to Mach3's Menu -> Config -> Spindle Pulleys

 Choose a pulley
Choose a min and max RPM so that the spindle feedback can calculate the correct RPM for display

I did choose a pulley = 1 and then i put 0 min speed and 6000 max speed, still doesnt work

What happens if you change the ratio to 1.5?

it will adjust the read speed but it will still not fight to keep the spindle at commanded position, Im gonna try a tip from Tweakie.cnc then check back with ya

Im gonna try a tip from Tweakie.cnc then check back with ya

 

Tweakie.

HIYA Mikey , First closed loop NEVER work worth a hoot even with teh LPT and I dought it even works at all with a ESS. What you see is a linear config error. The voltage output is NOT linear with the RPM called. THAT is a function of teh ESS to control that probably a ESS setup problem with teh spindle control.

Normally MACh3 does NOT attempt to correct ANY spindle speed. You just have what the spindle is doing and that is it. IF it boggs down it just boggs down UNLESS your spindle speed controller itself can do Closed loop control and MOST don't unless it is a SERVO spindle.

IF you were useing an LPT I could show you how to correct the linearity problem BUT I don't know squat about the ESS's spindle output control.

BUT there is probably a manual out there somewhere that may have the answer ?

(;-) TP

(;-) TP

That's weird because the lathe we worked on tp did work, but didn't thread lol.