Bridgeport Manual to CNC conversion...

[Chaz]

Thanks, I use a supply line e-stop Pilz safety relay and main contactor and safety circuit, its totally separate from the controller for extra safety. It kills power to all drives and the spindle in use but leaves the controller and PC active.

Its running now though.

Problem is that the drives will creep unless you can find the bias sweet spot on the drives.

[Davek0974]

All drives now steady and happy. :)

Just takes a bit of fiddling in setup

Gone for a relaxed speed - no point in thrashing the bevels etc.

Did an auto-set on the steps per, preliminary accuracy tests seem to show repeatability of -0/+0.02mm which think is pretty good for an uncompensated heavy knee. I could only test over 50mm as thats all my DTI will do so no idea yet what a long shift will do but most tools are within 100mm of each other so shouldn't be an issue i think.

Can move on to macro tweaking now.

[Davek0974]

M6Start macro sorted, it works really well using measuring tools instead of real tools, I'll give it a go on a real job at the weekend once i've finished testing etc.

Its a most impressive add-on, she now has 350mm of clearance on the bed :)

[Chaz]

Congrats, any vids?

[Davek0974]

Thanks, hope to get a vid or two at the weekend - evenings are just too short :)

Just need to iron out a bug in the index homing, might be noise from the rough lash-up i'm using or may need to move the home switch a little.

[Davek0974]

Congrats, any vids?

Here you go - bit rough as hard to video while pushing buttons :)

https://youtu.be/npuQk2Ao7UY

Also tested my homing accuracy...
https://youtu.be/55VjHRgzt9s
https://youtu.be/SUt1NiHZYIg
https://youtu.be/fLXJXyGhipw
https://youtu.be/sGrpzJVhkSk

Can't ask for better i think :)

[Chaz]

Nice, do you have a high speed spindle fit to the machine too? If so, any pics of the mounting please? I have a friend that will be interested to do the same.

[Davek0974]

Nice, do you have a high speed spindle fit to the machine too? If so, any pics of the mounting please? I have a friend that will be interested to do the same.

Here you go...
http://www.machsupport.com/forum/ind...32513.500.html