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Type: Posts; User: ballen

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  1. Replies
    12
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    629

    Personally on a part like that I would use...

    Personally on a part like that I would use free-machining steel, which in the US system is 1211/1212/1213. It's easy to get a really nice finish, and on the knurling as well. That part is never...
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    219

    Hi Fernando, This might be of help:...

    Hi Fernando,

    This might be of help: https://www.practicalmachinist.com/vb/deckel-maho-aciera-abene-mills/deckel-model-6017-rotary-table-380-mm-rundtisch-303095

    There's a pretty good set of...
  3. That's true. I can run it even slower, so slowly...

    That's true. I can run it even slower, so slowly in fact that the motion is only visible via the DRO counting. But I've never seen someone running a cylindrical grinder at those speeds. The usual...
  4. Hi Paul, Nice lathe! The ways on my Studer...

    Hi Paul,

    Nice lathe!

    The ways on my Studer cylindrical grinder had some similar scoring. The most experienced person here (Richard King) explained that this was because of the ways wringing to...
  5. Kudoes on the cardboard mock-up. I often do...

    Kudoes on the cardboard mock-up. I often do cardboard or wood mock-ups of machine mods, and find it very helpful.

    Another solution: grind wet. Did KO/Lee make a coolant-enabled version of this...
  6. Thread: Flame Hardening

    by ballen
    Replies
    4
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    496

    This is an interesting old video that many people...

    This is an interesting old video that many people here have seen before, "The world turns on Colchester lathes":


    https://www.youtube.com/watch?v=nQaAKUAzK0w

    Starting about 6:20 in, you can...
  7. Yes, I do, a friend sent me a number of small...

    Yes, I do, a friend sent me a number of small bags of SiC in grits from very coarse (sand!) up to very fine (2000). What grits would you suggest? Will this embed in the cast iron or just wash off?...
  8. This was on the back burner for a while, but I am...

    This was on the back burner for a while, but I am finally getting back to it.

    I started lapping the plates today, A/B A/C B/C B/A C/A C/B and so on. It's going slower than I was expecting. I'm...
  9. Hi Ross, That's the bit that wasn't clear...

    Hi Ross,



    That's the bit that wasn't clear to me. As I recall, these alignment pins are not taper pins, just ground cylindrical dowel pins. Is there any "trick" to relocate those pins to the...
  10. Hi Ross, When I first put my FP2 back...

    Hi Ross,



    When I first put my FP2 back together, the motion was tight at the bottom of Z, exactly because of this kind of of misalignment. I've also seen this in Y after repairing from a crash,...
  11. Hi Dennis, I think what Thanos wrote earlier...

    Hi Dennis,

    I think what Thanos wrote earlier is most likely. With the relatively light use that you are giving the machine, the only process that will eat the nut is a sharp edge or burr on the...
  12. Replies
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    664

    If you are willing to endure the hassle of...

    If you are willing to endure the hassle of international shipping, you can buy one in Germany fairly easily. These ones are expensive, I have seen them frequently for around 7-800 Euro. Not sure if...
  13. Replies
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    695

    Thanks for the photos. They are so heavy that no...

    Thanks for the photos. They are so heavy that no one wants to use them -- I was once offered one of those for very little money because the guy just wanted to be rid of it. For once, my better...
  14. Replies
    14
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    695

    I haven't seen them like that, would be grateful...

    I haven't seen them like that, would be grateful for a photo. BTW, that's their biggest model, 200mm wide, can you pick it up without a crane?
  15. Replies
    14
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    695

    Nice work Dave! On the originals the hold-down...

    Nice work Dave! On the originals the hold-down holes are slots not holes, which I prefer because it is faster to mount and remove. How come you did holes?


    Sent from my iPhone using Tapatalk
  16. Replies
    16
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    6,689

    The previous posts are more than 10 years old...

    The previous posts are more than 10 years old [emoji4]


    Sent from my iPhone using Tapatalk
  17. Replies
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    27,122

    You can find the Talyvel patents online. They...

    You can find the Talyvel patents online. They make interesting reading.

    The support is done with three fine copper-berillium wires. The design is clever. One of the support wires forms a "V" at...
  18. Replies
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    FWIW, that's what I use on the bevel gears of my...

    FWIW, that's what I use on the bevel gears of my Deckel FP2 vertical head. It's overkill, but I had a cartridge on-hand and an expert (Singer) told me it was OK.
  19. Replies
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    14,996

    Hi Ross, Thanks for setting me straight on...

    Hi Ross,



    Thanks for setting me straight on this. I thought that "Universal" meant independent adjustment for each jaw, since that can hold any shape.

    Cheers,
    Bruce
  20. Replies
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    1,473

    Here in Germany I have 3 phase 400V @ 32A in my...

    Here in Germany I have 3 phase 400V @ 32A in my home workshop, so I don't need this for myself. But this looks like a great solution for people who want to run a European 400V/3-phase machine on...
  21. I'm rather busy at the moment so did not reply to...

    I'm rather busy at the moment so did not reply to your original posting. But I just had a look - if traffic is good the seller is less than an hours drive for me. So I can help out if you still...
  22. Replies
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    That's awful, I'm sorry. Which guy??

    That's awful, I'm sorry. Which guy??
  23. Replies
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    1,473

    I didn't realize that such things were available....

    I didn't realize that such things were available. I thought that if you want 400V output you need 400V input, because all that a VFD does is provide phase-shifted versions of the input, perhaps at...
  24. Replies
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    14,996

    Hi Ross, Sorry that I wasn't clear. I...

    Hi Ross,



    Sorry that I wasn't clear. I meant the following...

    If you move Y as far as possible towards the vertical rotation axis of the Hermle table, the closest you can get to that axis...
  25. Replies
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    14,996

    I've been too busy to spend much time in the shop...

    I've been too busy to spend much time in the shop recently, but did test the adaptor plate a bit more. The first thing I found was that the two-jaw chuck was badly off-center. In fact it's so badly...
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