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Thread: MountainCrafts Router/Plasma Build Thread

  1. #25
    Registered Woodbutcher-59's Avatar
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    I'm not sure what the norm is, but I have purchased 5' screws that were pretty darn straight. Bought from Roton.com....

    On the other hand, if you can get it close to straight it should not be a problem.

    It's gonna be constrained by the AB nut, so it should not be able to wobble too far. On my first machine, I have a 1/2" screw about 48" long and while it is straight, it still whips a bit at higher speeds. I don't think a 24" screw will be any problem at all.

    HTH

    Jeff

    "I'm tryin to think but nothin happens" - Curly Howard


  2. #26
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    Thanks Mr. Butcher....

    There will probably be about 20-22" in between the two bearing blocks, and 4.5-5" less than that at any time between the lead nut and either bearing block...

    It's on the Z axis and will be direct connected to a 640oz NEMA 34 motor... So it's movements will largely be pretty small.. But I was concerned about bearing wear from a screw that causes a bit of binding...

    [URL="http://www.cnczone.com/forums/cnc_wood_router_project_log/124543-mountaincrafts_router_plasma_build_thread.html"][U]4' x 8' CNC Wood Router Project[/U][/URL]
    [U][URL="http://www.cnczone.com/forums/woodworking/135576-home_made_drum_sander.html"]Home Made Drum Sander Project[/URL][/U]


  3. #27
    Community Moderator ger21's Avatar
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    Sorry for being late to the party, but in the SuperPID thread, I show detailed pics of how I set it up on a 690.
    http://www.cnczone.com/forums/849835-post182.html

    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

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    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


  4. #28
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    Update:more pictures

    So, more progress over the last couple days... Got the gantry rails drilled out, and the Y to Z carriage partially put together, and the Z carriage partially put together..

    Built some mock up gantry end transitions out of wood (decided to go all aluminum with the final versions)..

    I must have been off a hair on a couple of the holes on the Z rails, as I am unable to pull it all the way in to 1/2" overhang (very close, but no cigar), so I will be re-drilling at least one rail out to 7/16" holes from the existing 3/8"... Probably will go ahead and drill both so I don't have to fight it any more anywhere on down the line...

    I'm waiting for the 4" flat bar to arrive, and also to get a chance to get into town and get some more bolts I need to have everything to finish putting the Y to Z carriage and Z carriage together.. I am also waiting for info from Ahren that I need so I know how long to cut the plate, the screw, and where to position everything (mostly, how far the motor shaft sticks below the mounting plate)..

    I also will be drilling out the helical coupling to 1/2" and changing out the motor mount shown, as I've decided to go with all NEMA 34, as opposed to the NEMA 23 motors...

    The Z carriage in some of the pictures is just standing upside down in it's eventual location.. It's not actually mounted to anything yet...

    The thing rolls nicely without any racking, so I know it will be very solid when the gantry transitions are made with thick aluminum, and the base table is made from welded steel rectangular tube...

    This is a bit of work... Glad I went with the CNCrouterparts stuff, as that took a lot of fabrication and what not out of the loop...

    But I'm getting there, slowly but surely...

    Anyways, enough yakking, and on to the pictures...









    Last edited by Mountaincraft; 03-26-2011 at 05:01 PM.
    [URL="http://www.cnczone.com/forums/cnc_wood_router_project_log/124543-mountaincrafts_router_plasma_build_thread.html"][U]4' x 8' CNC Wood Router Project[/U][/URL]
    [U][URL="http://www.cnczone.com/forums/woodworking/135576-home_made_drum_sander.html"]Home Made Drum Sander Project[/URL][/U]


  5. #29
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    I might be the only one that ever admits to this in public, but I know I'm not the only one who does it..

    But every time I walk anywhere near this thing, I have to grab the gantry or Z carriage assy, and obsessively move it back and forth on the rails...

    I think that means I'm excited about all of this! Can't wait until it's 'ALIVE!'


    [URL="http://www.cnczone.com/forums/cnc_wood_router_project_log/124543-mountaincrafts_router_plasma_build_thread.html"][U]4' x 8' CNC Wood Router Project[/U][/URL]
    [U][URL="http://www.cnczone.com/forums/woodworking/135576-home_made_drum_sander.html"]Home Made Drum Sander Project[/URL][/U]


  6. #30
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    I've gone as far as I can on this thing until I get more parts/steel/fasteners...

    So I think I'll start designing the aluminum versions of the gantry transitions in 3D today, and play with the demo software used to convert and generate the G code that I downloaded, so that once this things is alive, I can use it to make those parts... practicing first in wood, then for real in aluminum...

    [URL="http://www.cnczone.com/forums/cnc_wood_router_project_log/124543-mountaincrafts_router_plasma_build_thread.html"][U]4' x 8' CNC Wood Router Project[/U][/URL]
    [U][URL="http://www.cnczone.com/forums/woodworking/135576-home_made_drum_sander.html"]Home Made Drum Sander Project[/URL][/U]


  7. #31
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    Quote Originally Posted by Mountaincraft View Post
    I might be the only one that ever admits to this in public, but I know I'm not the only one who does it..

    But every time I walk anywhere near this thing, I have to grab the gantry or Z carriage assy, and obsessively move it back and forth on the rails...

    I think that means I'm excited about all of this! Can't wait until it's 'ALIVE!'
    Well, you may as well enjoy it now. Take it from me, it's going to be a big let-down from just pushing it around anytime you want to. You'll actually have to wait for the thing to boot up, and hear the motor thumps, and find the right keys on the keyboard. Worse yet, you'll have to learn to run all sorts of software before it will do anything useful. Ah, but we geeks like that kind of thing don't we?

    CarveOne

    CarveOne
    http://www.carveonecncwoodcraft.com


  8. #32
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    Quote Originally Posted by CarveOne View Post
    Well, you may as well enjoy it now. Take it from me, it's going to be a big let-down from just pushing it around anytime you want to. You'll actually have to wait for the thing to boot up, and hear the motor thumps, and find the right keys on the keyboard. Worse yet, you'll have to learn to run all sorts of software before it will do anything useful. Ah, but we geeks like that kind of thing don't we?

    CarveOne
    Sigh.. I guess it's just a sacrifice I'll have to make for the cause....


    I know it's getting more than a little over the top when I start making stepper and router noises with my mouth while I move it...


    [URL="http://www.cnczone.com/forums/cnc_wood_router_project_log/124543-mountaincrafts_router_plasma_build_thread.html"][U]4' x 8' CNC Wood Router Project[/U][/URL]
    [U][URL="http://www.cnczone.com/forums/woodworking/135576-home_made_drum_sander.html"]Home Made Drum Sander Project[/URL][/U]


  9. #33
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    I too have made noises around my machine. However, all too often the noises are not complimentary, and are used to encourage said machine to work like I wanted it to instead of what I told it to do.

    CarveOne

    CarveOne
    http://www.carveonecncwoodcraft.com


  10. #34
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    Quote Originally Posted by CarveOne View Post
    I too have made noises around my machine. However, all too often the noises are not complimentary, and are used to encourage said machine to work like I wanted it to instead of what I told it to do.

    CarveOne
    That's what beer is for... Putting everything in perspective....


    [URL="http://www.cnczone.com/forums/cnc_wood_router_project_log/124543-mountaincrafts_router_plasma_build_thread.html"][U]4' x 8' CNC Wood Router Project[/U][/URL]
    [U][URL="http://www.cnczone.com/forums/woodworking/135576-home_made_drum_sander.html"]Home Made Drum Sander Project[/URL][/U]


  11. #35
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    Can we see more pics.........



  12. #36
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    Quote Originally Posted by anil View Post
    Can we see more pics.........
    I will be buying some more parts in a few days (gotta wait for the money, as I'm building this with cash as I get it), and it will take a few more days for them to arrive.. So unless Ahren answers the e-mails I sent him a couple weeks ago and gives me the dimensions I asked for, then I have gone as far as I can go, and will have to wait for the parts to arrive so that I can get the dimensions off of the parts themselves... In the grand scheme of things, it might be better to get the measurements off the actual parts anyways (no chance for miscommunication)

    But believe me, I am anxious to do more.. and as soon as I do, I will post the progress....


    [URL="http://www.cnczone.com/forums/cnc_wood_router_project_log/124543-mountaincrafts_router_plasma_build_thread.html"][U]4' x 8' CNC Wood Router Project[/U][/URL]
    [U][URL="http://www.cnczone.com/forums/woodworking/135576-home_made_drum_sander.html"]Home Made Drum Sander Project[/URL][/U]


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MountainCrafts Router/Plasma Build Thread
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