Planning - Bridgeport Interact 1 linuxCNC Retrofit

I have the original velocity parameters for the Machine that were set in the TNC 151.
Rapid Trav X,Y 197
Rapid Trav Z 157
Man Feed XYZ 20

I set my max velocity a little less than these, 190 and 150. No need to stress the machine. I could not find any indication of what the original max acceleration was. Having used the machine a lot I suspect that it was around 8. My setting of 4 is clearly more sluggish. The default of 20 was much higher than the original and made the machine jerky and sounded bad.

Here are a few more parameters that you may find useful:
Backlash Comp X 0.000472
Backlash Comp Y 00.00098
Backlash Comp Z 0
X Range + -17.75587
Y Range + -11.708638
Z Range + -4.665345
X Range - 0.240157
Y Range - 0.303149
Z Range - 0.259842

I readjusted all of these but it was nice to have a starting place.

I doubt the factory precision of the machine was much if any better than that.

Todd, I agree this is probably as good and possibly better than the factory precision. It's also better than I actually need since neither my skills or projects are "high precision". But that does not keep me from a neurotic quest to make it better. I am a hobbyist after all. :silly:

csbrady,

Would you mind posting your final INI and HAL files for me to look at? I would like to see how you linked everything together with your panel ect.

Reading yours helps me understand the links between each file/pin.

Also I like comparing yours to mine.

Here are my hal and ini files.
Good luck!

csbrady,

Thanks for the files! They really help me understand my HAL and INI files.

Here is a video of my spindle running, as well as my mess in the garage. I'm using the cheap 3KW China VFD. I removed the 4MR contactor because one of the contact points fell off! So yeah, it was bad. I tried to remove just the wires and move them to the other contactor. I failed and now I have to trace each wire down again. Anyway...



Just a bit more progress!