GrantGunderson
Hot Rolled
- Joined
- Jun 4, 2021
- Location
- Bellingham, WA
I got the F/R switch wired up.
It's got a couple of contacts that are quite worn. I'll need to either find a donor switch for replacments or make my own contacts. It should be good enough to at least test the M/G as first step will be to make sure the motor portion of the M/G works before moving on to testing the Exciter and the DC motor.
Since I dont have the headstock on the lathe yet, I'm using a couple of spring clamps to hold the switch here. Sketchy, but its staying in off portion for the first set of tests.
I picked up a 3 Phase 30 amp fused disconnect for the lathe off of Amazon's ware house deals for $50, instead of mounting it directly to the back of the lathe, I will eventually mount it to the wall behind the lathe for easy access. There will be a plug between it and the lathe, so I can more the lathe for cleaning, etc If I ever need to.
I didnt have a thread chaser in the correct size, so I used a tap to clean the threads for the Start / Stop Knee switches.
The pilot light was dead, so I replaced it with an LED
The new heater's for the motor's protection switch arrived.
I am going to go with these ones based upon my calculations.
They are identical to the factory standard ones, other than these have an extra winding on them.
One then gets installed on each side.
Ok, now I am getting close to powering up. One thin that had been bugging me was, why is the Start capacitor at 300Uf so much smaller than the 60Uf run cap? Well I decided to pull it out of the mounting bracket I had made. Its rated for 45VDC, no AC! Glad I checked! I ordered up a new Starting capacitor off of Amazon, its 300UF, and rated for 450VAC.
Thats more like it. Since this cap is larger, it won't fit in the M/G connection box, so I need to mount a second box on the lathe. I decided, its probably smart to move both caps into this second box, to clean up the main connection box.
Once I figured out the mounting locations, I used a transfer punch to line everything up, and then installed rivet nuts to install everything.
It's got a couple of contacts that are quite worn. I'll need to either find a donor switch for replacments or make my own contacts. It should be good enough to at least test the M/G as first step will be to make sure the motor portion of the M/G works before moving on to testing the Exciter and the DC motor.
Since I dont have the headstock on the lathe yet, I'm using a couple of spring clamps to hold the switch here. Sketchy, but its staying in off portion for the first set of tests.
I picked up a 3 Phase 30 amp fused disconnect for the lathe off of Amazon's ware house deals for $50, instead of mounting it directly to the back of the lathe, I will eventually mount it to the wall behind the lathe for easy access. There will be a plug between it and the lathe, so I can more the lathe for cleaning, etc If I ever need to.
I didnt have a thread chaser in the correct size, so I used a tap to clean the threads for the Start / Stop Knee switches.
The pilot light was dead, so I replaced it with an LED
The new heater's for the motor's protection switch arrived.
I am going to go with these ones based upon my calculations.
They are identical to the factory standard ones, other than these have an extra winding on them.
One then gets installed on each side.
Ok, now I am getting close to powering up. One thin that had been bugging me was, why is the Start capacitor at 300Uf so much smaller than the 60Uf run cap? Well I decided to pull it out of the mounting bracket I had made. Its rated for 45VDC, no AC! Glad I checked! I ordered up a new Starting capacitor off of Amazon, its 300UF, and rated for 450VAC.
Thats more like it. Since this cap is larger, it won't fit in the M/G connection box, so I need to mount a second box on the lathe. I decided, its probably smart to move both caps into this second box, to clean up the main connection box.
Once I figured out the mounting locations, I used a transfer punch to line everything up, and then installed rivet nuts to install everything.