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Type: Posts; User: DennisCA

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  1. Replies
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    That seems like an interesting compound, I did...

    That seems like an interesting compound, I did some research and apparently the key to it's claims is due to the abrasive which is made from garnet.

    It seems very expensive, but I have been able...
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    Worth a try I suppose, once I get the bushing off...

    Worth a try I suppose, once I get the bushing off I should be able to separate the gears further and have better access. I have some 320 grit "E-Z bore" lapping compound already, maybe that could...
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    Yes the drill never got that far before it broke,...

    Yes the drill never got that far before it broke, nowhere near even.

    I purchased an M16 rod today, fine thread pitch and some nuts, to make a pusher. I also removed the set screw holding the...
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    Well, I think the bushing is the first order of...

    Well, I think the bushing is the first order of business. Depending on how much more axial space it allows me, that can alter how to best proceed. I assume it will slide hammer out after the set...
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    The thickest steel I could get behind the 3rd...

    The thickest steel I could get behind the 3rd gear is 6mm, if I where to remove the front bushing though I think I could increase it by quite a lot, maybe I could get 12mm steel in there. I could...
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    maxspongebob I am not sure that the thickness of...

    maxspongebob I am not sure that the thickness of plate I could get in behind the gear would be stiff enough.

    At any rate I don't see how I could possibly destroy it beyond repair, even if the...
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    Well that tears it. Broke off the tip of the dril...

    Well that tears it. Broke off the tip of the dril in the key slot. I was worried it would happen. I don't know, feels I am back to square one now.

    I am contemplating sacrificing the shaft, I've...
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    I have such an idea for stand by, but I wouldn't...

    I have such an idea for stand by, but I wouldn't drill the casting, I'd remove the bushing to get greater access and then drill, and I'd put the force not against the casting but the center hole of...
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    I thought of that design but I do not have the...

    I thought of that design but I do not have the material at hand to make such a version, and all this needed was to push the two gears back in place so I did not think I needed that much strength for...
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    It does sound like a tempting solution, though I...

    It does sound like a tempting solution, though I am afraid it means the machine will be weakened in certain gears and might snap more easily, it would be like a cloud hanging over my head when I used...
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    Something like that has been suggested and I...

    Something like that has been suggested and I think it could perhaps be doable, but I am worried it would make a weak solution and risk breaking again, and possibly leave me in a worse position if it...
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    You are right I believe, that is how it ought to...

    You are right I believe, that is how it ought to work, retained by the bearings, that should be more than enough IMO.

    But on my machine, all three gears are stuck more than normally. The two...
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    You have it mostly right, the two first gears are...

    You have it mostly right, the two first gears are not rotating freely on the shaft either (nor axially), they still have the key under them and they are quite stuck to the shaft as well, but not as...
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    I wonder if it could be made stiff enough myself...

    I wonder if it could be made stiff enough myself given the size limitations
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    The biggest problem there I believe is the amount...

    The biggest problem there I believe is the amount of available space behind gear 3 and the casting, only very thin metal fits in there and I think it would all need to be made from thick box section...
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    Well I thought this looked like a fun project:...

    Well I thought this looked like a fun project:
    YouTube

    I have also thought about making my own parallel pliers, though they are not so expensive online.

    A hemingway kit rotary broach is...
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    Well in the above case, it should only be drilled...

    Well in the above case, it should only be drilled to under the 3rd gear or a little beyond, so the geometry under the gears is not that complex and could probably be inferred from the intact gears...
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    I guess, I tend to run away with my thoughts, all...

    I guess, I tend to run away with my thoughts, all kinds of stuff running through my head, what material is the shaft, could I reuse the spline from the old shaft perhaps, bore it out and thread it on...
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    Assuming I get the shaft out somewhat whole, what...

    Assuming I get the shaft out somewhat whole, what do people here think of welding the shaft and turning it down again? Do you think it would warp too much from the heat?
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    Well, it seems I have another round of shopping...

    Well, it seems I have another round of shopping to do.

    And if I am to grind to the front of the shaft to open the slot I will need to press the two gears back in place as they now partially...
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    Were are the hinges available for purchase, and...

    Were are the hinges available for purchase, and what price?
  22. Replies
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    That does seem tedious but also reasonable. The...

    That does seem tedious but also reasonable. The 3rd gear is very easy to rotate on the shaft, but sometimes it hangs, such as after I've tried to tap the shaft out back, then it gets stuck but if I...
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    I could do it but I am skeptical it would make...

    I could do it but I am skeptical it would make the third gear any more free even if I got rid of all the bits of the key from the assembly, I think the issue is elsewhere on the shaft, as the key got...
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    I can get a small square file in there, had...

    I can get a small square file in there, had worked from the material dislocation being underneath the gear though.

    I thought I saw something octagonal or hexagonal in the shaft, but maybe that was...
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    I think AlfaGTA was right when he said it was...

    I think AlfaGTA was right when he said it was best to save the gears and sacrifice the shaft in that case. I would do it by drilling out the shaft from the front, removing as much of the material...
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