Messages

651

General Mach Discussion / Re: Home Offset

« on: December 24, 2017, 06:25:13 AM »

Is this on a CSMIO controller?

I have home offsets on my mill and it works ok, what version Mach are you running?

652

General Mach Discussion / Re: UC 100 Not Respond On Mach3 After Plasma Piercing

« on: December 24, 2017, 06:23:09 AM »

Just a note - USB never seems to play well on Plasma, I tried and failed, went back to parallel port which is not much better but seems ok at 45A plasma and only on a Hypertherm - tried three other makes and all failed.

If/when i build a new table it will be with ethernet connection as that is far more stable in poor conditions and you cant get much worse than plasma.

653

General Mach Discussion / Re: Auto stop on spindle overload.

« on: October 23, 2017, 08:21:21 AM »

My main bugbear is when Mach starts running code but omits to start the spindle - i have asked about this and it seems its a known issue but rare and hard to replicate. Its great for busting milling tools though

I was think of looking at my spindle power and stopping the code if that reads zero and its about to issue a move.

Its something to do with the compiler, it throws a "complier error in M03" error message but just carries on going.

654

General Mach Discussion / Re: Auto stop on spindle overload.

« on: October 23, 2017, 04:52:03 AM »

Nicely done I think.

655

General Mach Discussion / Re: Mach3 on a laser cutter...

« on: August 25, 2017, 02:01:52 AM »

Laser is fun, its still running on the standard Ruida controller though

656

General Mach Discussion / Re: Z probe using a 3D printer bed levelling sensor?

« on: May 06, 2017, 03:18:30 AM »

It might need some interfacing - the blurb mentions servo input, pwm, solenoid etc, I cant find much out about the internals or the sensing method used but if the repeatability is anywhere near as good as stated it must be worth a try i think.

Also, being for 3d printers which are generally lightly built, i would presume the surface contact pressure is very low which would be good for TOM sensing in a plasma cutter

657

General Mach Discussion / Re: Z probe using a 3D printer bed levelling sensor?

« on: May 05, 2017, 02:09:23 PM »

Won't work.

I am sure it will.

The difference is additive versus subtractive machining.

Not sure that has anything to do with bed leveling or plasma top of material sensing.

I think you may need to explain your answer in a bit more detail.

Tweakie.

Go ahead and try it.

its a surface probe, i can't see any issue with the type of machining?

658

General Mach Discussion / Re: Z probe using a 3D printer bed levelling sensor?

« on: May 05, 2017, 06:12:35 AM »

Ooh, nice,

wonder if that could be adapted to work on a plasma cutter for top-of-material sensing?

659

General Mach Discussion / Re: zero mach

« on: April 21, 2017, 11:20:28 AM »

This point is then your work zero coordinate - the point at which Mach3 will reference all of the moves in your g-code.

It is generally the same reference as that used when creating the g-code, also known as the home reference, work zero coordinate, home point and a few others.

Without this reference, your g-code will be run at some arbitrary position and not in line with the material or design needs.

It is only the centre of your router bit or "controlled point" as long as the machine DRO's show zero for both axes.

660

General Mach Discussion / Re: Home switches

« on: April 17, 2017, 02:12:00 PM »

AFIK there is no setting for this, if the axis is not stepping back or only just stepping back it is likely switch bounce - try adding some de-bounce and try again, might need deifferent switches.