I have a armature lathe , a old " Trucut" & on small motors its probably faster to do the hacksaw trick . As far as the brush covers go , if Grainger has them I wonder if MSC does also . If MSC does have them there may be a CAD drawing that ya can DL & try printing them on the 3d printer . I know they used to have cad drawings for their stuff , don't know about for these days . A quick google shows that folks have printed covers/caps & put the files online .
animal
H
I'm also considering skimming both commutators, Just because I have them apart enough to do it easily. What I don't have is the special tooling to do that. Does not look like there is any mica to undercut. Have seen a ground hacksaw blade used
Somebody stop me before I eBay again! ;P
Never found the missing parts, so I'm headed out to the shop to see If I can make a couple of matching brass brush covers. The two Themac J-3 tool post grinders I wound up with both have more complex brush covers: One on the left is the other one of what I lost. The other two will screw down into the brush holders, but are slightly different in size. I'm going to try ordering some that should be the correct one from Grainger, where they're $2.29 each, which isn't bad, and I can pick them up so not pay shipping, but the earliest they could be here now is after 4PM on Friday. $4.98, so I went ahead and ordered them. The brushes, if I got them from Grainger would be $26.76 each. DC Motor sold them to me for $5.13 each. Probably should have asked if they had the brush caps, but didn't think of it then. ;)
Got a package of 50 of the 8-32 kep-nuts from amazon for under $8 last weekend. I now have LOTS of spares! :)
Bill in OKC
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