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Edmonton- Small lathe/milling work; Advice, insight, recommendation?
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<blockquote data-quote="12- carbon" data-source="post: 43721" data-attributes="member: 2397"><p>!! I just realized I omitted a critical measure- the new shaft diameter, I'll have to look this up once I'm home.</p><p></p><p>Regarding the precision, it's hard for me to say. I have no machining background so I'm not sure what is considered "high" tolerance. I was thinking in the area of 0.05mm, is that reasonable?</p><p></p><p>The 2 narrow 0.9mm grooves are for circlips retention (my circlips are 0.8mm so the 0.9mm ive allotted leaves a bit of leeway). The space between them is for a sun gear (that measures 13.50mm; I've allotted 13.60mm, again a bit of leeway) that is part of a planetary reduction assembly. The modified diameter of the shaft that seats the gear, needs to be within a certain tolerance so there isn't slop when the gear is seated (just realized I didn't state the the new shaft diameter...), and also for the Key pin recess to seat without backlash etc.</p><p></p><p>Correct, it's the rotor, it's strong, not outrageous though. What you would have to watch out for is the initial placement. As you get closer and closer to seating it, it would slap against the chuck possibly.</p></blockquote><p></p>
[QUOTE="12- carbon, post: 43721, member: 2397"] !! I just realized I omitted a critical measure- the new shaft diameter, I'll have to look this up once I'm home. Regarding the precision, it's hard for me to say. I have no machining background so I'm not sure what is considered "high" tolerance. I was thinking in the area of 0.05mm, is that reasonable? The 2 narrow 0.9mm grooves are for circlips retention (my circlips are 0.8mm so the 0.9mm ive allotted leaves a bit of leeway). The space between them is for a sun gear (that measures 13.50mm; I've allotted 13.60mm, again a bit of leeway) that is part of a planetary reduction assembly. The modified diameter of the shaft that seats the gear, needs to be within a certain tolerance so there isn't slop when the gear is seated (just realized I didn't state the the new shaft diameter...), and also for the Key pin recess to seat without backlash etc. Correct, it's the rotor, it's strong, not outrageous though. What you would have to watch out for is the initial placement. As you get closer and closer to seating it, it would slap against the chuck possibly. [/QUOTE]
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Edmonton- Small lathe/milling work; Advice, insight, recommendation?
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