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Hi All Thanks to Bill for standing as a Moderator for the Group, now he is up and running I am changing my email settings back to special notices only so will have limited viewing of the Group pages

Use brass bolts? Replace one or both, maybe get one in tightish, get the second one in using the old steel bolt. Maybe then replace the brass one with the other original steel one. Meanwhile I could

*Les, * Thank you for the pictures! Your solution looks very sound. Dick

I drilled a hole in the casing and glued threaded boss in position.

I think I will epoxy an appropriately sized aluminum piece into the area that I need to ?drill and tap M5. Then turn my attention to getting the long screws lined up and tightened. At least I don’t

Correction: ...easier to line up.

Hello, If you’re finding that the magnets are part of the problem, try to insert a rod made of a durable, stiff, non magnetic material e.g., carbon fiber on one side first. It's easier to lines up

Re the extra tapped hole in the front end cap, I made up a small plate in aluminium sheet to fit the recess and aluminium brazed it in with low-melt alloy rods. I was using a Mapp gas torch so had to

The nominal speed of CNC spindle motor is with no load. When mounted on the lathe, due to friction losses, maximum speed will be less; I don't know how much, maybe 80% from specification. NapierDeltic

From what I have tested, with my current belts, because of centrifugal force, torque tension and their elasticity, they start loosing grip from about 5000 rpm above (not completely but not desirable).

The motor I use is about 4300 rpm, which gives me a highest speed of 6000 rpm at the chuck. This is usually enough for me, although I might like to try it a bit faster if I found a suitable motor.

For the tapped hole, make up a plate to fit in the end cap and tap it M5 in the right place, or just tap a round (or square) piece that will go in and stick it with double sided tape. It will stay

I have identified it to be from this family of motors: https://nl.aliexpress.com/item/33009729521.html Product parameters Spindle motor: Electrophoresis black DC brush motor Working voltage: 12-48vdc

Put the end with the screws on first holding the screws in. And then just put the other end on over the screws.?Jeff

I purchased two 150 watt scooter motors. I removed the front end cap and was planning to drill and tap a hole in the end cap to allow mounting of the Unimat motor bracket but found there is not enough

Success! I got the winding out after a little swearing and grunting. My Grandma Louise used to say "You gotta say sh*t and then it works." Next I need to figure out the best way to replace the wiring,

Can you give more details of your spindle motor, and where it came from? I'm particularly thinking of the speed ranged, since many of these spindles are high-speed, some very high speed.

400-500W CNC DC brushed spindles are ubiquitous and cheap. Motor usage on a lathe is much less than on a CNC machine so it should be fine. -- NapierDeltic

My controller I think is this: Hope I'm not breaking any rules. It is rated 400W max and it? should be easy to find as it is made in China. Anyhow, the bigger you find, the better (safety margin to

Thanks for your post Napier. I’m in Australia and this is my first post. Could you provide some detail of your speed control box for the spindle motor. I have a 200w DC motor (200v) from a massage