Gallery, Projects and General > The Design Shop

lathe milling spindle?

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vtsteam:

--- Quote from: bertie_bassett on March 23, 2015, 02:58:49 PM ---ahh so that's how they work.. was rather confusing when I opened the box up and found the bolt on shaft! have never had one of these in my hands before.

good to know who actually makes these motors, might make finding another one easier. I assume they are a reasonable make if you use them a lot?

--- End quote ---

I don't know what the status of EMP is now. Lots of retail and nline outfits re-brand their motors, and there was a really big sell-out through online outfits of many in their line about 3 years ago -- I was buying smaller motors for $3 each and bought quite a few to have as stock for planes.

I think the fact that the model you have is no longer listed is the same situation. Older stock. I don't think the factory went out of business, I think they modernized their line of motors, and these older models were dropped. They are pretty recognizable once you've worked wth one -- though the colors vary. That seems to relate to the letter designation in the part number.

Anyway, I always liked them and always thought they were good motors for the money.

bertie_bassett:
It wasn't. So much the bearing size that dictated the length of my bearing housing.  Its purly down to the fact I based the design around 40mm stock. If id stick with my original plan the housing would have been 40mm plus the 2 end pieces making a total of 60mm  thus only 40 for the motor. The beari gs are still where I originally wanted them with 10mm spare between then so I could have made it all smaller, but then I don't think it would have been as sturdy.

I may have asked befor but what thickness are the bearings your planning on?

Not really done any more progress tbh apart from locktighting  the bearings inn place ( big mistake  as I still needed to dismantle to weld a nut on  :bang:  )

mattinker:
Bertie,

Single row angular contact 10 x 28 x 8. I'm going to make the body from home cast Al with a standard electric drill 43mm to mount on. I haven't drawn it up yet!

Regards, Matthew.

bertie_bassett:
Made some progress lately, turned up a screw nut from a lump of old motor shaft which happened to have the right thread in it. And turned up a nut to be welded to the spindle body.
Welds look ugly but they will hold I'm sure

Have ordered the rest of the metal up for the slide and base. Just waiting on delivery befor I can make any more progress.

Things may have to go on hold for a while longer though as tomorrow I need to go dismantle a machine and try to fit it in my small van. Oh and then reassemble said machine in a workshop.

mattinker:
A mystery machine eh! My motor showed up today, looks as I thought it would. I'll have to wait until next month to get my bearings and ESC.

Nice to see the photos, regards, Matthew

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