Messages

51

General Mach Discussion / Re: Still unable to get motors to turn under mach 3 after 1.5 weeks

« on: December 23, 2007, 02:18:47 AM »

Success, motor now turning.
I sent John at Keling an email and he sent me a mach3 set up guide and I noticed that the setting in the motor setup had step and direction enabled, the text explained why.
So I tried it and Bingo it worked.
Previously I had watched the mach3 video setup guide and I either missed it or the relevance to it.
Many thanks to everyone for the their help and suggestions.
Kind Regards

Clive

52

General Mach Discussion / Re: Still unable to get motors to turn under mach 3 after 1.5 weeks

« on: December 22, 2007, 06:20:27 PM »

Sorry missed a couple of comments.
Regarding the Led on the breakout board there is only one to show that the 5v is on, and it does not go off.
My 5v psu will give 1 amp which should be loads.
Regarding the scope I tried it both ways and I got a pulse but not being very good with a scope I dont know what the voltage was.

Clive

53

General Mach Discussion / Re: Still unable to get motors to turn under mach 3 after 1.5 weeks

« on: December 22, 2007, 06:13:02 PM »

I will give that a go.
I did put my meter across the 5v and the 24v ground and got a 5v reading so there is one.

Clive

54

General Mach Discussion / Re: Still unable to get motors to turn under mach 3 after 1.5 weeks

« on: December 22, 2007, 03:38:46 PM »

I built a 5v and 12v power supply which runs off of the 24v 8.3A psu.
The 5v for the breakout and drivers and the 12v for the charge pump.
I asked about the ground somewhere else but I cant remember where.
I have spent months making the parts turning down ballscrews and modifying my mill.
I bought what is effectively a kit for the electronics expecting it to work first time.
 
Clive

55

General Mach Discussion / Re: Still unable to get motors to turn under mach 3 after 1.5 weeks

« on: December 22, 2007, 12:40:34 PM »

Hi Tony
The 5 volts are different to the step and direction if you look at the keling website for the wiring diagram of the kl 4030 driver the curcuit diagram that I am using is there.
Yes I had found the maplin one its £30. CCL have them for <£10.
I will try to borrow one in the morning.
I am in danger from she who must be obeyed so I think its time to pack it in for the day.

Regards
Clive

56

General Mach Discussion / Re: Still unable to get motors to turn under mach 3 after 1.5 weeks

« on: December 22, 2007, 12:08:54 PM »

Thanks for the responses.
I am definately getting something as I saw it on the oscilloscope, there is a pulse train for the step signal and the level changes for the direction.
The connections that are available are
1. VCC which is 24V
2. Ground
3. 2 x 5V
4. 4 x motor connections
These are wired in basic form exactly as the wiring diagram and no inhibits.
I have just tried it with no breakout board and it still doesnt work and also swapped psu.
I am now suspecting the parallel port and have tried to buy one but failed as the local PC superstore doesnt have things like this any more.
For information I am in East Sussex.

Clive

57

General Mach Discussion / Still unable to get motors to turn under mach 3 after 1.5 weeks

« on: December 22, 2007, 08:09:51 AM »

Despite the help from KTM and Arturo Duncan at CPC4PC I am unable to get the motors turning in my system.
I am now exceedingly frustrated.
Here is a list of what I have tried:-
1. 2 different computers.
2. A dedicated PSU and a Bench PSU
3. Both sets of drivers in MACH3
4. 3 stepper drivers and 3 motors
5. Changed the ports and motor tuning countless times
6. Measured the output of the Breakout board with an oscilloscope
7. Used a signal generator on the breaout board with an oscilloscope
8. Checked the wiring countless times
9. Put the corrrect pulses in for the motor.
10. Checked the pins on the lpt1 cable
11. I have the setup videos about 5 times.

Does anyone have the optimisation files please.

Whats even more frustrating is that my modified mill is ready to move.

Anyone help a desperate, dispirited,downhearted and grumpy old man?

Clive

58

General Mach Discussion / Re: New to CNC cant get motors running

« on: December 15, 2007, 12:33:42 PM »

Not having measured the amplitude and frequency I dont know, they are only there when I run G code and do start and stop. I did notice that it looked like 3 traces running in parallel, but I am not an accomplished oscilloscope driver.

I have gone back to basics, I have stripped a stepper driver out of the box, I have stripped the cable off of a motor, I have stripped the breakout board out of the box, completely rewired them and I will try it on a bench power supply tommorow.
Now I am going to have nice meal and a glass of wine.
Thanks very much for your help. I am sure we will turn over the correct stone in the morning.

My wife thinks I am a bit grumpy at the moment cant think why.

Clive

59

General Mach Discussion / Re: New to CNC cant get motors running

« on: December 15, 2007, 10:13:55 AM »

But I still cant get the motor to turn!

60

General Mach Discussion / Re: New to CNC cant get motors running

« on: December 15, 2007, 08:57:26 AM »

I have cnc4pc c10 breakout board and I have 5v on the enable line does anyone know if I need to set up anything in mach3? There does not appear to be a pin number to set it to?