CSMIO/IP-M and PM752 Drivers

[Washout]

Hopefully you read this JazzCNC, as I think I have fallen foul of the "Pulse edge being on the wrong side to what the drives are set to" issue you described above.

I did run a test as suggested above and all looked good and I've even run a couple of jobs (nothing too stressful), but today I decided to use the machine in earnest and ran a job which was a multi-level adaptive clearing toolpath (just facing off a chunk of hardwood), with lots of curved cuts.

The first level looked OK i.e. nice spiral ramp down to depth then expand out and curved passes for the length of the stock. The next level down again spiralled down and ran fine, but I then notice that level is offset from by -3.8mm in X and -1.8mm in Y, like its losing steps or zero. I have verified I have an error by running a much longer X -230 X -130 rinse and repeat toolpath over a steel rule for about 10 minutes @4000mm/min and lo and behold I have a "slip" in the minus on the X axis of about 5mm (more if I run it longer).

Is that consistent with the Pulse Edge issue?

(I'll try and track down the Dir LowActive in Motor Outputs in MACH4 and give it a try in any case, as nothing's changed mechanically i.e. no binding on axis etc. so it must be either electronic or software).

[JAZZCNC]

Is that consistent with the Pulse Edge issue?

(I'll try and track down the Dir LowActive in Motor Outputs in MACH4 and give it a try in any case, as nothing's changed mechanically i.e. no binding on axis etc. so it must be either electronic or software).

Yes, that's exactly what happens. I can't help with Mach4 however as I don't use it.

[Washout]

Whilst I remember the spindle wiring worked perfectly. Here's a quick demo:

[JAZZCNC]

Whilst I remember the spindle wiring worked perfectly. Here's a quick demo:

Something doesn't sound right there.? Or is it just bad sound.?

[Washout]

Something doesn't sound right there.? Or is it just bad sound.?

Not sure - the sound is generally bad on the camera and its also mounted directly to the spindle/bearing mount. The spindle is fairly new and does make a bit more sound than the one I had previously, but it doesn't get hot or anything, so I assume its OK (pulls about 1.8 to 2.1 amps under load). The hole is also drilling through the stock into the sacrificial bed for indexing purposes and the drill will be catching on one peck at lest on the double sided tape under there (plus some other detritus in previous cut throughs).

Just about to head down to the workshop to try the pulse edge thing, but I also notice in my drive manual/datasheet that there are 4 jumper settings to choose from:



I'm assuming that "a" is default, so I probably need "b" (or vice versa depending on what I find in there and assuming I don't set it in MACH4)?

[JAZZCNC]

I'm assuming that "a" is default, so I probably need "b" (or vice versa depending on what I find in there and assuming I don't set it in MACH4)?

Yes that's the drive setting for switching leading edge but just do it in mach4 it's easier.

Regards the noise then I wasn't meaning the sound of the spindle, it sounded clunky in its movement as if a coupler or pulley something was loose, possibly dodgy bearing. I'd be checking out the Z axis as well. You would get the same problem if something was slipping.