Need Help!- Series 1 Spindle movement problems

[bartL]

George I want a computer on it so i can run it with mach3.
I don't know any commands on the Boss control. The only thing i know is how to move the 3 axis.
Hope I can put in the code you gave me.
How can I turn up and down the feedrate?

Thanks,
Bart

[bartL]

George,
I've just measured the Amps while stepping the Z-axis.
It reads 7.8A when I do nothing. When I do a little step it reads 7.75 a really short time. When i do a larger step 0.1 it reads around 7A for a second.
But when I hold it in JOG position the value is going down and when the motor stalls (oscillates) it reads 5.14A. I think that's really low but I don't know what is allowed.
I also typed the code exacly as you wrote it in your post. While the axis was moving I turned the feedrate but I could turn it to the highest position and the motor didn't stall.

Bart

[machintek]

Glad you found the feedrate pot. This proves that it can move slow but not rapid.
This is a funny system. When in rapid the counter EMF generated in the motor impedes the current and on a good motor it will drop to just more than 2 amps. At the same time the voltage goes up to 60 V.
Keep typing the mini program in changing direction (+/-) and the feed rate go up by a value of 50. 150 is 15 IPM, 200 is 20 IPM etc.
Lets see how fast it can go before it stalls.
What is the AC voltage at T2, the transformer in the back, top, 3rd and 6th wires from the left?

George

[bartL]

George,
I tried to speed up the IPM's with the mini program and with the feedrate pot completely open.
Is there a maximum of IPM's? I tried it up to program G91G1 Z-1.0F5000
so that should be 500IPM but I had the idea after a certain value it didn't go faster anymore? Is that right? I couldn't get him that far he would stall, so in one way that's a good sign I guess.

Thanks,
Bart

[machintek]

I believe the maximum is 200IPM. Maybe it needed to be freed up?
Will it now work in rapid?

George

[bartL]

George,
At 200IPM it worked fine. What do you mean with freed up? I don't understand that word, sorry!
It still doesn't work in rapid, but then it moves way faster.

Bart

[machintek]

There is a possibility that there may be a problem with the ZCK clock card but that would effect all 3 axis.
Without being there, it is hard to figure out.
Freed up means that working it, it may work with less friction.

George

[bartL]

George,
I already thought it could be because off too much friction. When I bought the machine they put a lot off grease on all blank steel to provide it from resting while shipping the machine to the Netherlands. I took that off the spindle before trying it but maybe not enough. I already tried too wipe it clean with PTFE spray but that didn't worked. Do you have any suggestions?

Thanks,
Bart

[machintek]

I have had cases where people used the wrong oil but I flushed the ball screw and quill with Kerosene, and then re-oiled it. On your side of the pond, maybe try naphtha? Some solvent that will flush anything out.

George

[bartL]

George,

What exactly do you mean with the ball screw? I know what usual ball screws are but I don't think you meant those ones.
Maybe I should try to clean it with Kerosene, but what exactly should I clean?
The trapezium thread? Or the quill? Or maybe something else?

Thanks,
Bart