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Type: Posts; User: bigspike

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  1. Re: Needing a little extra X axis travel in bench machine

    One thing to consider about the Sherline, is the electronics & motors are all imported. If I remember correctly the main motor is also from China.
    So yes it is "Made in America" but is it really.
    ...
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    Re: DRO Digital readout for 3 in 1 machine

    Really? Over 15 months, with 1300 views and no replies?

    Okay fine, how about I give an update & tell you all what I determined & decided.

    First this Enco machine is very close to the Smithy,...
  3. thanks

    thanks
  4. okay, so I go to digikey and search for...

    okay, so I go to digikey and search for 'capacitor' too many choices and none say oil filled paper
    so I search for 'oil filled paper' - nothing
    then I search for 'AC motor run' - returns 'film...
  5. I'm confused about capacitor for a blower motor

    I bought a small blower a while back & never was able to figure out what capacitor to get for it.
    web search returned too technical info for my level


    Ametek Rotron propimax 3BL part no 041037...
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    Found a posting someplace on the net that points...

    Found a posting someplace on the net that points out that these do not have any form of backlash compensation. They would not be that useful. I will be going with sliding scales. just need to find...
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    DRO for 3in1 machine

    I previously posted this in the Smithy forum, but got no response.

    I have a 3 in 1 Mill/Drill/Lathe that I would like to add some sort of DRO to. Since I have practically no money, I am looking...
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    DRO Digital readout for 3 in 1 machine

    I have a 3 in 1 Mill/Drill/Lathe that I would like to add some sort of DRO to. Since I have practically no money, I am looking at the Grizzly
    H8176 Cutting Depth Digital Readout for G0516 at...
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    There are plenty of things I don't like in the...

    There are plenty of things I don't like in the windows 8 interface, but my laptop was running Vista home and after a couple of years of light usage it was pretty much unusable. I really wanted...
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    BobCad V23 on Windows 8

    Just upgraded my Vista laptop to Win8 pro and thought I would share the experience of installing Bobcad V23 build 1493 on the new OS.

    First time I tried it failed. I retried running the install as...
  11. Quick Update: Nook ball screws & nuts...

    Quick Update:

    Nook ball screws & nuts delivered yesterday.
    Compared to the Thomson I got from Reid supply, the Nook ball screws are shiny, almost polished looking, and the Thomson is smooth and...
  12. Still no ETA for the Nook ball screws I ordered...

    Still no ETA for the Nook ball screws I ordered 8/6.

    I ordered bearings from VXB.com, but the angular contact bearings I wanted are on back order until November. (I am at least hoping to need them...
  13. lead accuracy of ±23um/300mm works out to about...

    lead accuracy of ±23um/300mm works out to about .001"/foot same as Nook.

    But I would be expect the NEFF P5 grade Thomson ball screws to price out at 60% higher.

    If you are using the T5 grade...
  14. Everything I have seen for the rolled Thomson...

    Everything I have seen for the rolled Thomson ball screws says they are .003"/foot with the XPR rated at .001"/foot.

    When I torque the opposing ball nut against the belleville spring washers, I...
  15. I looked at the specs for the SRT and the XPR and...

    I looked at the specs for the SRT and the XPR and they have the same dimensions. Then when the Nook factory rep called, I asked him if there was any reason not to mix the SRT and the XPR and he said...
  16. FYI I ordered Nook XPR ball screw stock and SRT...

    FYI I ordered Nook XPR ball screw stock and SRT ball nuts.

    I was just passing on the info for the end blocks and such. I would assume since they are Chinese made, that the bearings would be junk....
  17. Ball screws & nuts ordered

    This has been very frustrating. I am still waiting for quotes from Motion Industries etc.

    This morning I decided to start over searching for Nook sellers. I went back to the Nook distributors web...
  18. I plan to use Angular Contact Bearings of a...

    I plan to use Angular Contact Bearings of a decent grade, cost/benefit/budget, on all fixed ends. As well as floating bearings on the free ends. By floating I mean the shaft will be turned down about...
  19. 1. From what I understand, the 5/8" XPR ball...

    1. From what I understand, the 5/8" XPR ball screws (.631") are only sold in 4' & 6' lengths.
    2. I am working on a design for pre-loading 2 single nuts, the adjustable preloaded double nut is just...
  20. Some people on here have posted that they had...

    Some people on here have posted that they had some trouble getting the ends machined due to the hardness of the steel. Check with your local Nook distributor for machining quotes, they can also...
  21. I will do the end machining myself. I have a...

    I will do the end machining myself. I have a lathe with a tool post grinder and a torch for annealing the ends.

    By putting one ball nut on each side of the mounting plate with belleville washers...
  22. After waiting days to get a quote, I called one...

    After waiting days to get a quote, I called one of the distributors again and he was waiting for prices from Nook.
    I then found a source, reidsupply.com, for online purchase for Nook and Thomson...
  23. So why don't you tell us in detail how to do such...

    So why don't you tell us in detail how to do such a test? Step by step. Show us with pictures of the setup and incremental steps. A chart of the results and details on your ball screws.

    Experience...
  24. Thanks, guess I didn't really think it all...

    Thanks, guess I didn't really think it all through. Makes sense. Well that plan just changed.

    @HimyKabibble - Thanks for the nook pricing...That would make 1" XPR $49.34/ft and 5/8" $27.19/ft. If...
  25. I spoke with a rep for Nook and he saw no reason...

    I spoke with a rep for Nook and he saw no reason why I could not use the XPR ball screws with the SRT ball nuts. I am still waiting for quotes from various companies.

    It feels like most companies...
  26. I plan to use single ball nuts, doubled up with...

    I plan to use single ball nuts, doubled up with spring washers on the X & Y axes to reduce/eliminate backlash. With just a single nut on the Z. My thinking is that the weight of the head should...
  27. I will and hopefully report back after...

    I will and hopefully report back after installation and testing.

    To add another aspect... I had decided on 3/4" ball screws for X Y & Z, but was interested in opinions regarding using 5/8" for the...
  28. From Mach3 Yahoo group

    I just found this
  29. We all know that this is not a Haas mill... And...

    We all know that this is not a Haas mill...
    And one issue at a time.

    If in a worst case installation, I use the Roton ball screws and get .009"/ft lead error. Then I could have an error of .018"...
  30. Sure, but how do you connect the scales to Mach3?...

    Sure, but how do you connect the scales to Mach3? What brand, supplier?

    And do you have any more info on mapping? Or will you report back when you get them setup?
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