Pm-940m-cnc (pre-assembled)

[fugawii]

Hi. I am a new forum member. Great forum. Great members. Great advice. I'd like to start a thread for PM-940M CNC owners. There's not a lot of model specific help out there for this machine. Is there anyone else out there that has one of these and could share some Mach 3 settings? The set up manual that comes with it is translated and hard to decipher. Here are some links and files that have helped me so far. I'm not 100% operational yet. I'm finding a lot of conflicting pins/port numbers between the various model numbers.

 

[fugawii]

http://www.hobby-machinist.com/threads/pm-45m-cnc-setup-and-configuration-with-mach3.21179/

 

[TomS]

There are a several of us that have bought/converted PM-45's, PM-932's and a few PM-940's so there's a large base of knowledge that you can tap into to make your build go easier. Most are running Mach 3 with a few running other control software.

I have a PM-932 that I converted about 1-1/2 years ago. I'd be more than happy to share my setup files and screen shots. Let me know what you need help with and I'll post them.

Tom S.

 

[fugawii]

Thanks TomS. I appreciate it. I have about a week of wheat harvest left. Once that is out of the way I will me able to dedicate more than a few minutes each morning to the mill. I have everything functioning except the spindle. I'm getting closer!

 

[JimFouch]

I also have a PM-940M-CNC I got at the end of last year. I managed to break it down into small enough pieces to have about 5-6 friends help me move it into my basement. I'm still working on getting it all set up the way I want it. I did have to reduce the limits on the travel of the Z-axis due to my ceiling height. I lost about 1" of travel. But, to have it located inside where I can use it year round is worth it.

 

[fugawii]

Arrrgh. I still can't get this spindle to turn. FWD & REW lights up on the VFD in the cabinet when i toggle spindle. Could someone share some screenshots of their Mach3 settings for the PM-940M-CNC? I am using Windows 7, Mach3, VFD, USB connection to the Jamen controller card. I've emailed Precision Matthews and they sent me the .pdf's in my first post(sigh). Do i need to do any setup on the VFD? While i appreciate the self-education on Mach 3 and JNC-40M, it seems to me they would have much happier customers if they included a Mach3 setup file on the CD they ship it with. At the very least some customer support would be appreciated. Deciphering and decoding the JNC-40M controller manual is kicking my butt.

 

[profmason]

Arrrgh. I still can't get this spindle to turn. FWD & REW lights up on the VFD in the cabinet when i toggle spindle. Could someone share some screenshots of their Mach3 settings for the PM-940M-CNC? I am using Windows 7, Mach3, VFD, USB connection to the Jamen controller card. I've emailed Precision Matthews and they sent me the .pdf's in my first post(sigh). Do i need to do any setup on the VFD?



YES. I have a pm940 cnc. Need to setup vfd according to manual. Test it in manual mode first. Set mode to F 1.2. (At least on my model) I futzed with the cds for an hour during setup. Good luck

 

[fugawii]

I sent an email to Precision Matthews asking about the VFD. I just received a reply from Greg at Precision Matthews. Matt is on vacation for the next week and is still unavailable. He claims no setup to the VFD is required.

 

[RogerC]

Just ran across this thread. I also have a PM-940M-CNC. I have removed the stock controller and replaced it with an ESS controller which has made setup easier. I am also able to do backlash compensation in Mach3 with the ESS, whereas I was unable to get it to do anything with the JNC controller. If anyone has questions I will try and help.

 

[cut2cut]

I should be getting a new PM-940-CNC-VS from Precision Mathews / Quality Machine Tools in the coming weeks. I will contribute my experience here so others can benefit as much as I have from the posts already made. ( Huge thanks to the guys that posted their Mach3 setup tutorials for the closely related PM-45M-CNC mentioned above. )

I'm somewhat experienced with Mach3 and have converted a smaller mill to CNC. At some point I expect to move to a Mesa Controller and use LinuxCNC via Ethernet. Also after ensuring everything works I will likely remove the electronics box from the rear of the column so I can build an enclosure for chip and coolant containment. I will share my experience here.

One initial question regarding the need for a ? 28mm ? spline wrench for tightening and loosening the drawbar. I have looked online and could not find one available to purchase. Is there a source for this that others have found ?

Happy New Year !

Jake D.