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Sphinx Upgraded plates / ballscrews and linear rail

Discussion in 'CNC Mills/Routers' started by Troy Proffitt, Dec 11, 2018.

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  1. Troy Proffitt

    Troy Proffitt Well-Known
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    When I replaced mine, I cut the 40x40 the exact same length as the original C-Beam piece.
     
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  2. Troy Proffitt

    Troy Proffitt Well-Known
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    My Boss loves Model trains and asked me to create him a power panel for all of his gauges and switches. Turned out great:

    Here is the final result:
    Imgur

    1/8 2 flute un-coated carbide bit, 770mm/min feed rate, .5mm depth of cut
     
    #32 Troy Proffitt, Dec 27, 2018
    Last edited: Dec 27, 2018
  3. Gary Caruso

    Gary Caruso OpenBuilds Team
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    Troy, great looking machine! I really like how simple and clean the design is, looks like it performs great!
    Cheers
    Gary
     
  4. Gilsegev

    Gilsegev New
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    Thanks Troy! I'll probably get ordering soon here! I think I'll start with the X first and see how it goes.
     
  5. Gilsegev

    Gilsegev New
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    Hi Troy, I see that the right and left arm drawings are exactly the same. This makes sense to me but wanted to confirm before I start cutting.
    arms.jpg
     
  6. Troy Proffitt

    Troy Proffitt Well-Known
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    The only difference is the bolt holes for the stepper motor on one side. Just an FYI, I ended up manually re-drilling those holes to make them align better with the ballscrew.
     
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  7. Gilsegev

    Gilsegev New
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  8. Jon Kraus

    Jon Kraus New
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    Love your build! Any chance I could get more detailed pictures of the "x" axis?
    Thanks
     
  9. Troy Proffitt

    Troy Proffitt Well-Known
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    Here you go:

    Here you go: pic1.jpg pic2.jpg pic3.jpg
     
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  10. dwkdnvr

    dwkdnvr New
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    Interesting design, and quite appealing in it's basic simplicity. Nicely done.

    What are the working dimensions after the conversion?
     
  11. Troy Proffitt

    Troy Proffitt Well-Known
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    it's about 48" x 36"
     
  12. wallywalker

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    Wow this is an amazing build - Enough so that I'll make my first comment post on this forum.

    @Troy Proffitt Is it really difficult to level and align all the rails for a build like this? Especially with the aluminum angles you had to hand drill? I'm interested in building what you've set-out here basically from the ground up off a WorkBee setup for my first build.
     
  13. Troy Proffitt

    Troy Proffitt Well-Known
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    Not sure if I was lucky or not, but I had no problem with my rails. I drilled the holes in the angle before I mounted to the rails.
     
  14. blue25

    blue25 New
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    This is what i'm looking for. Great upgrades
     
  15. Troy Proffitt

    Troy Proffitt Well-Known
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    Glad you like it. Make sure you post pics after you upgrade
     
  16. Gilsegev

    Gilsegev New
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    Here is mine. Still work in progress. Using 1605 mm ball scew on the Z and 2010 on the X/Y and 15mm HIWIN rails.
    Mocking it out of 4mm plywood before I start cutting each of the plates.

    20190329_112531.jpg 20190329_112533.jpg 20190329_112541.jpg
     
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  17. Troy Proffitt

    Troy Proffitt Well-Known
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    Wow! Looks great so far :)
     
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  18. Gilsegev

    Gilsegev New
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    Z and Y motor plates ready! All I have left now are the left and right arms/gantry plates.


    20190414_131233.jpg 20190414_131237.jpg
     
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  19. Gilsegev

    Gilsegev New
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    Making progress with my build.



    20190614_111311.jpg 20190614_102344.jpg
     
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  20. Troy Proffitt

    Troy Proffitt Well-Known
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    Sorry I'm late to the party, but this looks great! Looking at the picture, I noticed you placed the ballscrew bearing on the outside of the aluminum plate. I'd be curious to see how you are going to mount the stepper motor.
     
  21. Gilsegev

    Gilsegev New
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    Thanks. Yes, in order to maximise travel, I went with the end supports on the outside. The solution for mounting the motor took time to come up with. I milled another plate which sits on the outside of the end support and has mounting holes for the motor and is bolted through the end supports to the main arm plate. I'll try and post a picture tomorrow
     
  22. Gilsegev

    Gilsegev New
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    Here's the solution I went with for mounting the end supports on the outside.
    Also attaching an updated picture of my build. My CNC is going into a sea shipment to the US tomorrow so next update will be in a couple of months :(
     

    Attached Files:

  23. Adam Filipowicz

    Adam Filipowicz Journeyman
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    Do you notice any Whip with the ballscrews being that long?
     
  24. Gilsegev

    Gilsegev New
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    As you can see, mine is not running yet so I can't say.
    Troy may be able to answer.
     
  25. Troy Proffitt

    Troy Proffitt Well-Known
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    The ball screws are pretty beefy and don't whip at all. The original leadscrews whipped around terribly tho.
     
  26. graham prinn

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    Nice machine, I can't believe the prices of the ball screws. cheaper than getting multi start acme rod. So they are good? no problems with them at all?
    I'm going after the 1510 workbee but being looking at how to drive it other than 8 mil lead screws and belts. This just might be the ticket. So what kind of rapids do you get from your set up, which drivers and motors. I'm thinking of getting the blackbox with the biggest motors openbuild supplies. Thank you for sharing.
     
  27. Troy Proffitt

    Troy Proffitt Well-Known
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    Mine have been great. I'm using 350oz nema 23's running at 24v. For a controller, I'm using the protoneer/raspberry pi3 combo. I use my tablet as an interface running VNC. I was running 3000mm/sec through soft wood this afternoon. Hope that helps.
     
  28. graham prinn

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    Wow that sounds awesome, 3000 mm/sec is super fast, like almost 10 feet per second. I can't run that fast lol. Sure that's not per minute? Never heard of the protoneer before. Are they the drivers or do you need something else to go with that other than raspberry pi? I'm thinking of the blackbox, I have the workbee in my shopping cart but man looking at the Canadian dollar right now, SUCKS, will cost me 3 grand for the machine and that's not with any of the upgrades like you have done to your machine.
     
  29. Troy Proffitt

    Troy Proffitt Well-Known
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    Sorry, its 3000/mm per min or 2 inches per sec
     
  30. Troy Proffitt

    Troy Proffitt Well-Known
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    Here is the protoneer, and the drivers are HERE. I have a video of my electronics HERE
     

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