Messages

1

General Mach Discussion / Re: MACH3 spindle behaviour

« on: May 10, 2018, 01:33:31 PM »

hej everyone,
just wanted to let you know that the tip of @ger21 solved the issue.
Just bought a cheap RS485 USB interface und nov contriving the Spindle with RS485 and the huanyang vfd plugin.
Works like a charm.
Thanks

2

General Mach Discussion / Re: MACH3 spindle behaviour

« on: May 06, 2018, 05:35:05 PM »

@ joeaverage thanks for the hall effect sensor tip. will try that. And yes I could just set the speed so it ends up being the right settings but i would like to experiment with a few different Spindle speed settings. And also I would like to get it right

@TPS this sounds like a good solution if I can't get the hall effect sensor working. Thanks!

3

General Mach Discussion / Re: MACH3 spindle behaviour

« on: May 06, 2018, 10:00:44 AM »

I just tried building my own index sensor with a inductive sensor, hocked it up to P10 and defined it as an index pulse. But obviously the sensor can not handle the high RPMs.
What would i use instead and how do I hock it up?

I also measured the Voltage:
Mach3   VFD   volt
5000       9900   1,62
6000     10455   1,94
7000     11030   2,27
8000     11660   2,64
9000     12290   3,0
10000   12940   3,39
11000   13600   3,76
12000   14300   4,17
13000   14970   4,56
14000   15600   4,96
15000   16440   5,41
16000   17170   5,84
17000   18000   6,32
18000   18770   6,77
19000   19560   7,23
20000   20455   7,74
21000   21300   8,24
22000   22252   8,8
23000   23160   9,32
24000   23890   9,75

4

General Mach Discussion / Re: MACH3 spindle behaviour

« on: May 06, 2018, 07:29:08 AM »

I heard people saying this that is why I looked for one that would work and also changed all settings accordingly in the BIOS.
Also stepper and everything else works just fine.
I wonder how the Auto-Calibrate should work since there is no feedback of the actual RPM or anything and also no feedback line from the VFD

5

General Mach Discussion / MACH3 spindle behaviour

« on: May 06, 2018, 06:20:00 AM »

Hello,
I have 2 problems with my spindle.
1. if I set M3 S10000 the spindle starts but the VFD says 12969 RPM (I measured it with a laser and the VFD number is +/- 1% correct). I managed to bring all 3 inline (MACH3, VFD, Spindle ) with the minimum speed in the spindle pulley setting but if i then use a different speed e.g. 15000RPM it is off again. I tried to auto calibrate the spindle but that didn't help at all. It seams that the spindle speed curve is just not linear. Any suggestions  on how to takle that problem?
2. If the spindle is running (M3 S10000) and i try to increase or decrease the speed with e.g. M3 S15000 it just always goes to full speed (24000RPM).

My Setup:
- Mach3 on a Laptop
- Simple Mach3 breakout board with parallel port
- Huanyang VFD
- 2.2kw air cooled Chinese Spindle 0-24000RPM

Thanks
Flo