Not yet. I found a patent which may be it, but until I get it open I can't be sure. I found another one on eBay which I have ordered and it will be a sacrificial unit for disassembly.
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[How-To] Drill Speed Reducer
- Thread starter GHThomas
- Start date
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And spare parts!
- Joined
- Jan 2, 2014
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- 9,535
I love having a spare.
I have learned much by amateur cross-sectioning.
For mechanical parts at work I brought them home and ran an angle grinder thru at oblique angles and then finished on a belt sander.
The first time I was amazed at the detail; bearings races cut thru, plastic ball carriers intact, individual ball bearings cut in half!
On some (15,000 rpm!) fans I could see the blade shape, count the copper windings and even the layers of the internal circuit boards.
DC motors were a bit messy with debris sticking to the permanent magnets, but still very useful; the rotors still turned.
The component vendor actually used my photos in subsequent discussions.
I cannot share those photos, but perhaps I can find some other parts kicking around.....
Brian
I have learned much by amateur cross-sectioning.
For mechanical parts at work I brought them home and ran an angle grinder thru at oblique angles and then finished on a belt sander.
The first time I was amazed at the detail; bearings races cut thru, plastic ball carriers intact, individual ball bearings cut in half!
On some (15,000 rpm!) fans I could see the blade shape, count the copper windings and even the layers of the internal circuit boards.
DC motors were a bit messy with debris sticking to the permanent magnets, but still very useful; the rotors still turned.
The component vendor actually used my photos in subsequent discussions.
I cannot share those photos, but perhaps I can find some other parts kicking around.....
Brian
In the top photo, near the large shaft end or bottom, it appears to come apart there.
Look closely and it looks like the d screws into the body.
If you have a lathe, use a soda can as cushion, cut a strip and use it between jaws and body, grap with lathe, then more cushion with a strap wrench to twist off the body.
Sent from my SM-G781V using Tapatalk
Look closely and it looks like the d screws into the body.
If you have a lathe, use a soda can as cushion, cut a strip and use it between jaws and body, grap with lathe, then more cushion with a strap wrench to twist off the body.
Sent from my SM-G781V using Tapatalk
That is what I think too, although with close examination under a loupe it appears to be seamless.
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