Messages

1

General Mach Discussion / Re: Mach 3 and ESS , axis not going at the same speed g1 g0

« on: May 24, 2018, 07:13:22 AM »

Craig, thank you for your time!

Problem solved, it was a servo tunning isue. sevos where only autotunned , obiously the Autotunning function sucks hairy camel b...s! I had trusted them for that. The bad thing is that I do not have a good documentation of the tunning process of the drive and I have to figure it out by my self.

So Mach 3 and ESS ARE GOOD, I am the bad part in the system 

I will post a video of the working machine when it will be all set up

Thank you again!

2

General Mach Discussion / Re: Mach 3 and ESS , axis not going at the same speed g1 g0

« on: May 23, 2018, 12:40:10 AM »

OK I will do that as soon I get to the shop.

3

General Mach Discussion / Re: Mach 3 and ESS , axis not going at the same speed g1 g0

« on: May 22, 2018, 04:59:12 PM »

I know that the code is 'wrong' but the movement of the machine is to.

https://youtu.be/H40viSqKAZo
In the video you will have a clear view of the problem.
It is my second attempt to use the ESS , I have a plasma table that I run with the ESS board and the same laptop. Plasma table runs ok, this one is not.

4

General Mach Discussion / Re: Mach 3 and ESS , axis not going at the same speed g1 g0

« on: May 22, 2018, 01:14:52 PM »

Hi CRAIG !

So, the problem occurs allmost at any speed. X axis is set to 10000mm/min Y axis at the same speed , same with the slave A axis, Z axis is set to 5000mm/min.
X axis Steps/unit set to 1000 (10mm pitch screw 1:1 ratio)
Y axis Steps/unit set to 2000 (10mm pitch screw 2:1 ratio)
Z axis Steps/unit set to 4000 (5mm pitch screw 2:1 ratio)

X axis and z go in sync but Y axis does not.

SAMPLE CODE:
G0 Y-250 X0
G1 Y250 F5000
Z0
Z10
Y-250
Y250
Z0
Z10
Y-250
Y250
Z0
Z10
Y-250
Y250
Z0
Z10
Y-250
G1 Y0 F2000
G0 Y-250
M30

The z axis goes to it's z0 and z10 while the y axis is still on it's way to y250.
while travelling from y-250 and back to y250 it does not reach the end of its travel at aprox y-140 it stops and goes back to y250.

But at the end it reaches the final position y-250 spot on.

how can it be possible?

If i comand G1 X250 Y250 F5000 AN BACK TO X0 Y0 IT DOES NOT GO IN A PERFECT DIAGONAL MOVE, the x axis reaches x200 but the Y is still on its way, the DRO's reach at the same time,THE MACHINE IS ALL OVER THE PLACE. Y axis and the slave remain in sync but do not reach the end position in the same time as X.

I do not get any errors from the servo drives neither from the ESS that it has no memory or something. I have mach 3 with a license so any hack isue is null.

Maybe I can film it with my phone and post it on youtube.

5

General Mach Discussion / Mach 3 and ESS , axis not going at the same speed g1 g0

« on: May 22, 2018, 11:17:59 AM »

Hello,

Just finished my 3 axis (Y has A axis as a slave) router 1200mm x 2500mm with HIWIN AC Servos 10000 pulses/rev encoders, and I am desperate because the axis do no go in diagonal neither in G0 and G1 (in g1 only at higher speeds) meaning that if a comand a G0 X500 Y500 THE X AXIS REACHES FASTER AT THAT POINT. All the steps per unit are set correctly. Simply can get the machine to go. Another problem is that the problematic axis Y does not stop when I press the jog button. I have tried to get different results by changeing the ESS frequecies but nothing changes.

IN ESSENCE THE AXIS DO NOT REACH AT THE SAME TIME AT FINAL POSITION

The x and z axis are working fine with 1000 steps/ unit (10mm pitch ballscrew) y and slave axis has also 10 mm pitch screw but with 2:1 reduction so it needs 2000pulses per unit.

Servos tuned ok, settings in motor tunning are ok

Please be kind and give me a hint I an stuck and the machine has to start cutting stuff soon.

Thank you!