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Type: Posts; User: Mechanola

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  1. Replies
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    If you have enough space, go for nickel-iron...

    If you have enough space, go for nickel-iron accumulators.
  2. Replies
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    2,245

    Split bearings feasible You can make a tight...

    Split bearings feasible

    You can make a tight fit between shaft and plain bearing without having to fear wear, if you give either the journal or the bearing an oil groove. This would have to be a...
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    Measure diameter at the tip and at the end of the...

    Measure diameter at the tip and at the end of the shank. A metal drill is slightly tapered, those for wood are cylindrical.
  4. What lathe do you have? Tornos offers them,...

    What lathe do you have? Tornos offers them, Citizen, others.

    The point is that the earlier you can make an inner cylinder to clamp on the better you will be off. Turn ID and one side, then move...
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    6,394

    Let’s keep our feet on the ground. Centering of...

    Let’s keep our feet on the ground. Centering of something can be within microns or ten times less precisely. Conical surfaces work very well. Threads are not conical but helicoidal. They cannot...
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    6,394

    No, there’s always a shoulder and a...

    No, there’s always a shoulder and a countersurface in play.
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    6,394

    Threads don’t center.

    Threads don’t center.
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    10,630

    What do the parts look like? Thin walled?

    What do the parts look like? Thin walled?
  9. Got a conventional lathe? Remove tailstock, mount...

    Got a conventional lathe? Remove tailstock, mount internal brush, shove bars through. Something like that Internal ring brush - Waldo Brush
    Cleaning fluid, perfect preparation
  10. Replies
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    6,394

    Precisely ground gauge, of course. Next is a tap...

    Precisely ground gauge, of course. Next is a tap that’s also got a shank ground concentric to head. Shoulder screws third choice. Do brush the threads before entering a gauge.

    331774
  11. I should make that part with saw and file. Sorry,...

    I should make that part with saw and file. Sorry, avowed CNC hater here

    G41 just exchanges tool center with tool tangent point. The control adds a circular motion interpolated from tool radius and...
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    1,665

    Needn’t be blind. Try to clean the other side and...

    Needn’t be blind. Try to clean the other side and make pictures with smartphone, if feasible. I am quite confident that the bores go through. Can you turn the shafts?
  13. What a stupid design! Typical CNC trap. The four...

    What a stupid design! Typical CNC trap. The four outer studs should be made separately and added. That way you had free access to the central plane. Then, of course, you’d put the part(s) on a...
  14. The rotor blades rotate on axial bearings, not on...

    The rotor blades rotate on axial bearings, not on the bolts for which the work is in question. Therefore the rather tight fit. Besides, each blade is arrested by a second smaller bolt in trailing...
  15. Just what I was wondering about a minute ago....

    Just what I was wondering about a minute ago. What a hassle when you don’t have at least one specimen of the through bolts? The job is stinking something. Actually the bolts ought to be fit to the...
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    Explain the danger clearly and let the work be...

    Explain the danger clearly and let the work be done. Maybe the youngster pulls it off just void of a crash. Adrenalin teaches well.
  17. A helicopter main rotor hub Through mandrel...

    A helicopter main rotor hub

    Through mandrel with two sets of stones or one with long stones
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    5,547

    Very right he is. You have to master chip...

    Very right he is. You have to master chip building, else it won’t work. So study tool geometry, energy conversion, coolant pressure. It, of course, depends heavily on the materials. Bronze and brass...
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    1,772

    Hardly Might be a disc dresser, if there’s a...

    Hardly

    Might be a disc dresser, if there’s a motor in the base, or a grinding device. Can you read anything on the plate?
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    The best way to find out about the issue is to...

    The best way to find out about the issue is to clamp the work axially for a change. I know there are too few manually driven axial clamping chucks around for conventional equipment. If you have a...
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    There are no tolerances on a part. For everyone...

    There are no tolerances on a part. For everyone to know.
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    I heard one needs an internet for a website. Can...

    I heard one needs an internet for a website. Can I create that myself?
  23. Sometimes you can drill into the narrow sides,...

    Sometimes you can drill into the narrow sides, need not be deep. There you can apply downward force. While we’re waiting for the invention of the aluminium magnet
  24. Why not? Tony went there. Two Piece Machine...

    Why not? Tony went there.

    Two Piece Machine Vise Build - YouTube
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    There were/are center grinders that swivel around...

    There were/are center grinders that swivel around a conical stone. Can’t tell the name off the cuff.
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