Messages

21

General Mach Discussion / Re: Mach3 Problems - Rant!!

« on: June 23, 2011, 06:30:40 AM »

Tempest Planner's S Curve works nicely, everything runs much smoother, so that might help upping the accel/decel , but very much doubt we'll get 1G hehe.

The machine is relatively sturdy, about 1.2tons and we still need to add about another 500kg's - 1Ton  by filling the legs with sand, which should make it even more rigid.

22

General Mach Discussion / Re: Mach3 Problems - Rant!!

« on: June 23, 2011, 06:07:59 AM »

Just a quick update on the HAAS accel/decel values :

1G acceleration = 32 ft/sec2 (9.8 m/sec2)

That's REALLY fast, doubt our machine would be able to do those numbers as we currently on 0.12G acceleration, but will see how far we can push it.

23

General Mach Discussion / Re: Mach3 Problems - Rant!!

« on: June 23, 2011, 05:01:25 AM »

Awesome stuff, thanks for explaining that Hood.

Will push the accel/decel up until the machine starts sounding funny or until we start losing detail on the engraving side.

24

General Mach Discussion / Re: Mach3 Problems - Rant!!

« on: June 23, 2011, 04:24:47 AM »

That's a very good question Hood, not really sure what sort of acceleration our machine can handle.

Can you please tell me what the accel/decel value should be to equal 5m/s/s as I have no idea how to calculate or read it on the mach motor tuning screen.

I think the acell/decel is currently on 1000 if I'm not mistaken, which equals around 0.3 seconds?

I know the servo's default accel/decel is 50ms, but since I can't use Position/Speed Mode those values are ignored.

We also dropped the max rapid to 4000m/min as I was busy testing Tempest Planner and it always runs rapid movements at max speed,which is a bit scary at 15000m/min without the feedhold working under Tempest.

The machines default rapid setting is 15000m/min, but can be bumped up to 20 000m/min according to the manufacturer.

Does the velocity and accel/decel values under motor tuning work in unison? As I'm assuming one can drop the rapid value without affecting the accell/decel rate.

25

General Mach Discussion / Re: Mach3 Problems - Rant!!

« on: June 23, 2011, 03:39:16 AM »

That's just the thing, running the file on HAAS gives 1min23 seconds, which is pretty close to our current times.

The problem is those feeds are extremely slow and need to be pushed up by 4 times as the HAAS can run at that speed without any problems.

When upping the feed times 4 on the HAAS it finishes in 36seconds, but on our machine the time remains pretty much the same as it's not capable of performing the movements fast enough....... or as I suspect, some or other setting(s) is holding it back.

Have you tried running the g-code using your own xml, would love to know it it makes any difference.

I'll contact our manufacturer and see if they can install a filter as moving the wires wouldn't be an option as everything is built into their pre-designed cabinet.

I would love to know the motor settings of the HAAS, but they pretty secretive about their whole setup and trying to find it in the system itself it impossible as it's got screens and screens of config/parameter pages.

26

General Mach Discussion / Re: Mach3 Problems - Rant!!

« on: June 23, 2011, 12:35:24 AM »

Thanks for the efforts Hood.

Our time is around 1min27 seconds without SS, not sure if the time we getting with SS is right since it's 56seconds, but that's with the DRO's being all over the place. Plus I noticed on the preview screen that usually it will show you how it's engraving, with SS is actually moves off the screen, so you can't see.

Another thing is I closed Mach3, reopened and selected my normal mach3 profile (SS was still plugged in) As soon as I initialize the drives the spindle switches on.

If I open Mach3 with the SS profile and hit F5, SS dies.

Not sure if that helps any.

I attached another gcode file, only difference is the plunge and feed rate is the same so that one can monitor the actual feed rate better.

I'll change our Kernel to 25 tonight and see what happens, thanks

27

General Mach Discussion / Re: Mach3 Problems - Rant!!

« on: June 22, 2011, 12:49:58 PM »

Finally got the spindle working, turns out the damn inverter was faulty....go figure!

Ok so here is the long awaited g-code file and xml files, including a pic of our smooth stepper config file.

I installed smooth stepper today but haven't really had time to set it up properly. Not really sure what I did wrong as everything is fine except the DRO's that's being displayed while cutting are totally wrong.

Sadly as soon as I switch on the spindle smooth stepper clicks off..... just when I got the damn spindle to work in mach3 haha.

Anyways, one problem at a time I guess.

All we basically want to know is how fast does the attached g-code cut on your setup,using the default feed of the g-code, so that we can compare it against ours.

If possible, run it with normal Mach3 and also with Smooth Stepper.

Thanks again for all the help

28

General Mach Discussion / Re: Mach3 Problems - Rant!!

« on: June 15, 2011, 04:16:43 AM »

Haven't really gotten anywhere yet since the spindle which use to start up 75% of the time is now not starting up at all after they redid all the wiring.

It's really bizarre, the spindle switches on and the fan goes on, but it's not spinning.

Haven't forgotten about the code and xml file hood, just haven't been able to use the machine yet.

29

General Mach Discussion / Re: Mach3 Problems - Rant!!

« on: June 14, 2011, 07:46:20 AM »

Greetings Hood,

I've just finished reading the topic on Tempest Planner, sounds very interesting!

Reckon I'll give that a try to see if it makes any difference seeing as though it makes use of S Curves.

30

General Mach Discussion / Re: Mach3 Problems - Rant!!

« on: June 14, 2011, 03:39:05 AM »

Just spoken with our machine manufacturer and according to him our servo's are setup in Position Mode, which means all S Curve parameters are disabled.

Could this possibly be the reason for the slow down in feed rates?