Search Results - Practical Machinist - Largest Manufacturing Technology Forum on the Web
Close
Login to Your Account

Search:

Type: Posts; User: Halcohead

Page 1 of 59 1 2 3 4

Search: Search took 0.04 seconds; generated 24 minute(s) ago.

  1. Replies
    19
    Views
    1,131

    I can't share details about my application....

    I can't share details about my application. However in a general sense, yes the load rating of hybrid ceramic SiN bearings is lower than the load rating of straight steel bearings due to increased...
  2. Replies
    19
    Views
    1,131

    I can't comment on minimums, I was buying in...

    I can't comment on minimums, I was buying in quantities of 500-5000. I will say for the high-end angular contact bearings I was working, if you ignored labor it turned out significantly cheaper to...
  3. Replies
    19
    Views
    1,131

    I purchased direct thru Spheric Trafalgar; they...

    I purchased direct thru Spheric Trafalgar; they have a warehouse in Georgia where they stock balls. It still required an annoying number of emails however for what should've been as easy as ordering...
  4. Replies
    19
    Views
    1,131

    I've never heard of Coorstek but I've had success...

    I've never heard of Coorstek but I've had success purchasing grade 5 SiN balls from Spheric Trafalgar:

    Spheric Trafalgar LTD

    Prices were about 1/10 of the price from Bal-Tec, and they had...
  5. Replies
    3
    Views
    362

    Disclaimer: I'm not a metallurgist, but I've...

    Disclaimer: I'm not a metallurgist, but I've specified heat treatment of some intermediate (3-5") section 6061 forgings and plate products on several occasions.

    Page 29 and 30 of the following...
  6. Replies
    12
    Views
    955

    Agreed with others, this doesn't need to be cast...

    Agreed with others, this doesn't need to be cast iron. If you're price conscious just use whatever drop you can find.

    If you want a specific dimension, try Nowell Steel in Antioch Nowell Steel ....
  7. Replies
    14
    Views
    945

    For seamless tubing the initial tube that gets...

    For seamless tubing the initial tube that gets drawn is made with a rotary piercing process:

    Rotary piercing - Wikipedia
  8. Replies
    32
    Views
    3,010

    I have a Rivett 1030F but bet I could scab a...

    I have a Rivett 1030F but bet I could scab a durabar base onto the bottom if it doesn't already fit. I'd also be in for a raw casting set at $180.
  9. That's a beautiful casting, the shape of the...

    That's a beautiful casting, the shape of the reinforcement webs is very satisfying. I'm also very interested in the pricing whenever you've figured that. This could be a good purchase for next...
  10. Disclaimer: I’m not directly familiar with 10ee...

    Disclaimer: I’m not directly familiar with 10ee spindle layouts, but I’ve designed, developed and assembled a number of high speed and precision spindles.

    You want the DB arrangement (outer ring...
  11. Is this a single axis system? As CarbideBob...

    Is this a single axis system? As CarbideBob suggests, your error budget includes many more terms than just the precision and accuracy of your ballscrew and/encoder.

    Alexander Slocum’s Precision...
  12. Even in its max hardness (H900) it's fine to...

    Even in its max hardness (H900) it's fine to machine with standard tooling, even drilling with HSS (drill life will be short but you'll get by). Carbide will work better for milling and turning but...
  13. Replies
    70
    Views
    7,443

    Everyone’s favorite subject: small fancy toolroom...

    Everyone’s favorite subject: small fancy toolroom lathes.

    I’d take a 10ee over an HLVH for any reason except drive reliability.

    I’ve run a couple nice HLVHs a bit. I’ve got 100+hrs on a nice...
  14. Replies
    13
    Views
    2,583

    I've used both along with a Dynasty 210dx,...

    I've used both along with a Dynasty 210dx, primarily for welding many feet of thin-ish (.040-.090") aluminum butt joints. They were both perfectly capable welders. I second Moonlight, the cooling fan...
  15. Replies
    19
    Views
    3,196

    Try Etalon calipers. They're identical to the...

    Try Etalon calipers. They're identical to the original Swiss B&S/Tesa, but also have a thumbwheel. My favorite dial calipers. Haven't bought a set since 2010 so can't comment on where they're...
  16. Replies
    3
    Views
    958

    It appears to be the same lathe pictured on...

    It appears to be the same lathe pictured on Tony’s site. It lacks the stop rod for the Rivett version of ELSR.

    The serial number (523) is the same as on tony’s site, but the photo of the SN tag...
  17. Replies
    27
    Views
    2,348

    That's pretty cool, and the schematics look...

    That's pretty cool, and the schematics look beautiful.

    Do you have a way of sharing the zip file? I'd be more happy to send some money to cover the cost of this.

    Also, if you'd like a CAD model...
  18. Replies
    19
    Views
    2,112

    Glad to hear consensus is just sanding to adjust...

    Glad to hear consensus is just sanding to adjust clearance then refinishing the sanded face. I wasn't sure how bad refinishing the sanded edge would be, glad it's straightforward. (You can tell I do...
  19. Replies
    19
    Views
    2,112

    I have the same box, similar vintage, and the...

    I have the same box, similar vintage, and the same problem. Pretty annoying, it's been that way for 5+ years. My other Gerstner is smaller and in rougher shape but has never had this problem in ~15...
  20. Replies
    29
    Views
    33,678

    Resurrecting this thread after a couple years...

    Resurrecting this thread after a couple years since it's apparently still being referenced.

    I stand by my original post, and in case it isn't clear I'm referring to the technical use of GD&T terms...
  21. To add to what JHolland said, don't turn on the...

    To add to what JHolland said, don't turn on the drive motor with the headstock cover off at anything but the lowest speed. It'll fling oil, even if the spindle itself is stopped.

    To check oil...
  22. Nicely done, I think you'll be very happy with...

    Nicely done, I think you'll be very happy with the machine. I'm glad you bought it too, I really don't need another lathe but was very tempted. I always liked the tailstock on these; stoutly built...
  23. That’s an insanely good deal, assuming it works....

    That’s an insanely good deal, assuming it works. Basically a long-bed monarch 10ee with a larger swing and D1-4” spindle. Also the vari-speed drive is a self contained mechanical unit, so way easier...
  24. Replies
    61
    Views
    5,772

    No worries on GPA, just don't put on resume. It...

    No worries on GPA, just don't put on resume. It isn't important anyways. I've never once had an employer ask for my GPA, nor have I ever put mine on my resume.

    Put together a portfolio or personal...
  25. Replies
    9
    Views
    1,818

    Thanks for the suggestions y'all. The general...

    Thanks for the suggestions y'all. The general purpose worked while this was a prototype, but now that these are happening in quantity I was hoping to get a better fit wheel.

    Plastikdreams, that's...
Results 1 to 25 of 1458
Page 1 of 59 1 2 3 4