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IndustryArena Forum > MetalWorking Machines > Benchtop Machines > X2 cnc finished for now maybe
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Results 201 to 220 of 1045
  1. #201
    Yeah, I may be pushing my luck on the Y axis but gonna find out.
    Awesome if it works. Can always scale it back to 10 or 8 inches if necessary.
    Maybe I'll try thinking of baseball.
    The prints are done, looks good on paper,now to make the parts.
    Thanks again for the head dimensions guys.
    Going on another vacation in 2 weeks. Spending this one just playing around with the mill. Heaven. Thats the plan anyway.

  2. #202
    Join Date
    Sep 2006
    Posts
    607
    Move the collumn further back, extending the head forward and milling out the slot in the middle. I have seen some who have gotten up to 6" of travel on the mill. I have about 5" on mine.

  3. #203
    Have the parts made for my belt conversion.
    Thanks JayC.
    I modified some plans he gave me from a yahoo member.
    If the belt from LMS shows up, I'll get it installed this weekend.
    Won't post the plans till I make sure it works.
    Made changes to allow everything to be made on a conventional mill and lathe.
    no need for CNC, rotary table, boring head or keyway cutter. Simple.
    Later, Hoss
    Attached Thumbnails Attached Thumbnails belt conversion 1_800x600.jpg   belt conversion 6_800x600.jpg  

  4. #204
    Join Date
    Dec 2004
    Posts
    1137
    Wow, looks great. Not sure if you've been asked this already or not, but do you do this as your occupation?

  5. #205
    Yeah, I've been around machine shops since High School. (oh crap, my 25 year reunion is this summer)
    I've been a Prototype and Tool and Die Machinist the past 14 years with my present company.
    Still use conventional equipment, the CNC equipment is used by the older guys.
    That's why I built my own so I could learn and have fun too.
    Later, Hoss

  6. #206
    Join Date
    Sep 2006
    Posts
    881
    thoes are some really pretty parts.. hope i can do work of that quality when i grow up.. hehehehe
    Grizzly X3, CNC Fusion Ballscrew kit, 3 500oz-in bipolar steppers, 3 203v Gecko's, Linear power supply from Hubbard CNC, Mach 3, BOBcad Pro Art V22, Rhino.

  7. #207
    Join Date
    Dec 2005
    Posts
    430
    good job hoss!! u will love the belt drive, its sooooo quiet and u will never ever ever have to worry about breaking gears!!!!!!!!

    u might have to remove the intermediate gear shaft and pull out the gear change parts from inside the head, but that should be easy if u plan on removing the head anyway

  8. #208
    Join Date
    Jul 2005
    Posts
    969
    how are you going to tension the belt, i have noticed the slot on the top plate but no tension screw are you gonna do it just by hand

  9. #209
    Thanks guys,
    I never thought about tension screws, Just gonna do it by hand.
    It works on the old full size mills i've used before.
    I have all the prints redrawn but still wanna see if it all meshes together first.
    Maybe today.
    Got USPS tracking # from LMS.
    It says the belt was delivered yesterday so I guess I better go check the mailbox.
    Have Fun, Hoss

  10. #210
    Installed!
    The belt conversion is ready to go.
    Had to tweak a couple things, will update the prints and post them later today.
    good heads up skmetal7, the intermediate gear shaft was in the way but i went the lazy route and added a 1/2 in. hole in the base to clear it. I'll be tearing it apart in a few weeks to remove it. I'll add the hole location to the print in case
    anyone doesn't want to mess with removing the head.Just put the gear lever in neutral and removed the handle.
    I reused one of the locking levers I didn't need anymore for the x and y axis.
    An easier solution would be to tap the hole in the riser m6x1.0, but i already had it tapped 1/4-20. I cut off the m6 of the lever shaft and drilled and tapped it 1/4-20. Works for me.
    I'll get a video edited for youtube soon.
    Glad that low gear finally shredded and forced me to change to this.
    Oh, have another chip guard to add to the list now too. That'll have to wait till I'm all done with the changes and upgrades.
    Maybe in 2008.
    Later Hoss
    Attached Thumbnails Attached Thumbnails IMG_0306_800x600.jpg   IMG_0308_800x600.jpg   IMG_0302_640x480crop.jpg   IMG_0304_640x480crop.jpg  


  11. #211
    Here's the prints for the belt conversion.
    Get a belt at LMS
    or McMaster.
    Many thanks Jay.
    Attached Thumbnails Attached Thumbnails belt conversion base plate.jpg   belt conversion motor plate.jpg   belt conversion motor plate spacers.jpg   belt conversion large pulley.jpg  

    belt conversion small pulley.jpg  

  12. #212
    Join Date
    Dec 2004
    Posts
    1137
    All credit belongs to Jerry Rollett (original), John Pitkin (updates) of the Grizminimill yahoo group, and you

    Jay

  13. #213
    Thanks for their names Jay, If they are members here, they have my thanks as well.

    I have the new X axis installed now though with the old ballscrew.
    Still get 12 inches of travel out of it.
    Mounted the lathe attachment and wrote a program so tomorrow I can turn
    the end of the new longer ballscrew.
    I figure I'll max out at 18 1/2 inches of travel. I had to mount the ballnut on the
    outside of the saddle and it blocks a little travel on that side.
    Oh well, I'll live with it.
    I'll have some pics and video tomorrow.
    Later, Hoss

  14. #214
    Join Date
    Mar 2006
    Posts
    357

    Excellent work Hoss. You are very creative. I can relate to that. Using the Z column for the x-axis is something I never would have thought of though! Great website as well.

    Steve

  15. #215
    Thanks Steve,

    The belt conversion video will up at youtube shortly.
    here's a couple pics of the x axis upgrade sans long ballscrew.
    Hoss
    Attached Thumbnails Attached Thumbnails x axis expansion 1_800x600.jpg   x axis expansion 2_800x600.jpg  

  16. #216
    Join Date
    Jul 2003
    Posts
    281
    Hey Hoss, you may want to build in a sensor for the spindle RPM. So it will readout in Mach 3.

  17. #217
    Good idea Bob,
    Have any links to someone that has done it?
    I'm getting a speed control board from cnc4pc
    for another project and will want to take care of it then.
    Thanks, Hoss

    I remember ordering some parts to hook up to the Shumatech DRO for spindle RPM.
    I'll have to dig them up sometime and see if they'll work.

  18. #218
    Join Date
    Dec 2004
    Posts
    1137
    I have a simple circuit that will work. Requires one integrated circuit , one photo sensor and a resistor. According to ArtofCNC all you need is 1 pulse per revolution. It's a circuit I've used for home grown wheel encoders on hobby robots I draw up te circuit diagram tomorrow ... too tired to do it now.

    Jay

  19. #219
    Join Date
    Jul 2003
    Posts
    281

    Spindle sensor

    Hoss, I used this on my Harbor Freight 3 in 1 Mill /Lathe. I put a piece of black tape on my spindle pulley and mounted sensor on the guard. The circuit is shown in the pictures.
    Attached Thumbnails Attached Thumbnails pic1.JPG   sensor mount.JPG  

  20. #220
    looks good Bob,
    similar to the one from Shumatech
    I have the parts SOMEWHERE.
    what port(input signal) would I need to hook up to in Mach 3?
    Thanks Hoss

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