MSC is also useless. Don't have brushes that fit at all, and don't seem to have brush covers at all. Don't carry Leeson motors, apparently, which may be why, these were used on Leeson motors.
All the 3D printed caps I saw were metric sizes, and these are old SAE/ANSI sizes. Might also have to do with why they're so hard to find parts for.
Bill in OKC
Aphorisms to live by:
Good judgement comes from experience. Experience comes from bad judgement.
SEMPER GUMBY!
Physics doesn't care about your schedule.
The only reason I know anything is because I've done it wrong enough times to START to know better.
Expect in one hand, expectorate in the other. See which one gets full first.
On Sunday, September 3, 2023 at 02:32:33 PM CDT, mike allen <animal@psln.com> wrote:
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
On 9/3/23 11:59 AM, Bill in OKC too via groups.io wrote:
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
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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