The Home Machinist!

A-B / Hitachi / Siemens / GE (Teco) / Westinghouse / Toshiba / Schneider / Eaton all make very good VFD. I am sure there are others, but these are the ones I have worked with and respect....and continue to purchase. you don't have to worry about motoring a 1/2 VFD with a 1/2 hp motor..they all have ...

do not think for a minute that the vfd is going to replace the need to change bents. VERY FEW old motors can be run very slowly and expected to output the torque of a 'normal spinning' motor running through gears or belts. General rule with older motors is +/- 25% of nameplate speed is generally saf...

Morrison keyseater cutters used to be interchangeable (had a morrison here for years)

ah.....explains the switches...plugs / connectors.....

be careful at that 30% setting with that motor....

the sensors are a good idea...scrape the paint off and put them in the CENTER of the housing body..not near the shaft(s). figure out a way to hold them in constant 'touching' contact with the frame of the motor...this does not mean 'glue' which is a thermal insulator. centripetal force goes up with ...

note: i know it is tempting to just put your finger over the hole. doing so is a very dangerous practice...granted there is little chance of blowing air into a vein on your thumb and getting bubble back to your heart / brain...but if you don't do it at all...there is even less chance...so why take t...

even with poorly managed propane burner and no heat added to the boiler (fire out), there should be sufficient latent heat in the water to run more than 100' before the boiler goes to zero pressure. One thought...and easy test...requires a large diameter dowel and a few minutes of time. make a woode...

propane bottle on the back seat is where we started...eventually built a 'tank car' that carried the propane. have fun with it

as described by others - it sounds like steam leaking either past the valves or piston rings.

loss of pressure with little motive force pretty much dictates one (or both) of these conditions exist.

I would be planning on beginning disassembly...

Have you ever done any foundry work?

How old are you?

Sounds more like a 2-3 DECADE project instead of 2-3 years (at least for me) - after you have an actual working design in your hands.

toilet paper roll holder?

one of these days, someone is going to look at a manual engine late and say 'wazzat?'

be careful about running the lathe at low speeds at a heavy load. Many old motors cannot handle it and may well likely overheat.. in general, a VFD is not a replacement for spindle speed gears. Your comment about the 'armature stayed together' has more truth than you may realize... in reality, the s...