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looking for the 1.1" taller x gantry plates..

Discussion in 'General Talk' started by gibson, Oct 4, 2018.

  1. gibson

    gibson Veteran
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    hello I`am looking for the files of (( 1.1" Taller Gantry Plates for OX Heavy Duty CNC )) I`am a little advanced now and would like to try to cnc my own ....ANY CHANCE I CAN GET THE FILES ...iam only finding the ox build smaller one`s
     
  2. Kevon Ritter

    Kevon Ritter Master
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    Just extend the files you already have.
     
  3. gibson

    gibson Veteran
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    ty for your reply i`am useing fusion 360 any advice on how to extend file have`nt done that yet ...
     
  4. Giarc

    Giarc Master
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    Take the drawings from the Ox files and just redraw your own. If there is not a format for the regular plates that can be imported into Fusion 360, I have found it to be much quicker to just redraw a file in Fusion from the measurements especially with the mirror function. Take the hole spacing from the old Ox plates and then just draw the holes for the X gantry however high you want them. I did something similar in my CNC build. My X gantry is higher than a normal Ox. I used the wheel hole spacings from the Ox plates but changed the X axis beam connections. I also used two 2080 beams bolted together rather than two 2060s. The files are uploaded if you want to look at them. But I do not know how high you want to go. Also, my plates were designed for screw drive not belt.
     
  5. gibson

    gibson Veteran
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    ty for all the great advice and will look at yours i found way to take the mesh stl.file and convert it to a solid in fusion its pretty simeble methid i have test cuts done now waitting on my 6061 .250 alluminum sheet to come in ....this site is great going to be bosting my machine soon..
     
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  6. Giarc

    Giarc Master
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    Now I need to figure out how to do that. Time to do some googling. :)
     
  7. gibson

    gibson Veteran
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    seen your build very nice
     
  8. gibson

    gibson Veteran
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    here is a great video for that
     
  9. Giarc

    Giarc Master
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    Thanks. That is so much easier than what was shown in the video I watched earlier.
     
    #9 Giarc, Oct 8, 2018
    Last edited: Oct 8, 2018
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  10. Fred Howe

    Fred Howe Well-Known
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    Builders, having just found and joined this forum, I am eager to get all the info I can. I am looking to build a gantry-style CNC on top of a "rock solid" base of a 24 x 36 black granite surface plate. I would like to get as much travel out of those parameters as possible.On a limited budget, which means not being able to take advantage of much pre-made stuff and doing a lot of it myself. I already have 3 industrial CNC machines (Old Bridgeport knee mills), so this one will be for fun and the experience. Open to suggestions and advice from experienced builders. To that end, I am looking for the set of drawings for the OX gantry machine (referenced in this thread) which can be read by MasterCam or a similar CAD-CAM -program. I don't want to go to the trouble of downloading yet another program if the plans are available in a format that MasterCam can read. Also, just where do I download them from? I haven't had much luck trying to download files attached to various threads, so far. Current project is a retrofit of the control on my BOSS 5 machine.
    Thanks
    Fred
     
  11. MaryD

    MaryD OpenBuilds Team
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    You can find OpenBuilds published OX files here...
     
  12. OBdriver

    OBdriver New
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    Thank you. I downloaded the zip files, extracted them, downloaded a Sketchup viewer to look at them and found beautiful 3d renderings of all the plates, but no dimensions. I really need something with the dimensions, or a file that Mastercam can decipher, which it cannot do with the sketchup files, at least as far as I can determine.
    Fred
     
  13. Rick 2.0

    Rick 2.0 OpenBuilds Team
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    Pdf of critical Ox plate dimensions attached. Wondering though why you are considering an Ox. Not that it's a bad machine but many of the newer designs that incorporate C-beam framing like the Sphinx are stouter builds.
     

    Attached Files:

  14. Fred Howe

    Fred Howe Well-Known
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    Well, I am not familiar with the C-beam design, but I have seen some gantry models that used 3/8 aluminum side plates that looked like they could do some serious cutting. I will look at the c-beam designs more closely. Thanks for the file and suggestions. My aim is to put together something that can rapidly cut .06 to .187 aluminum sheet, with occasional excursions to thicker stock. A lot of the parts I make need more capacity than my current CNCs, in terms of travel, but are wasting the industrial servos or steppers and 2 hp spindle that they have. My biggest capacity machine will cut 15 by 30, but has a resolution of .0005 per step and a memory capacity of 10k. Unfortunately, I am running programs that sometimes hit 50 times that size. The only machine I have that has that kind of memory (presently) is limited to 12 x 18 capacity, although ot actually measures out at about 11-1/4 by 15-1/4 irl. The majority of the parts I am cutting out of the sheet material are the size of my hand or smaller, so the more of them I can turn out in one setting, the better. Ergo, my desire for more capacity. I want to use ball screw over leadscrews because the edge finish is important and the least possible backlash is also highly desirable. Millinf a small hole with a small endmill can get pretty strange looking with just a little backlash coming into play.
     
  15. SugarJ

    SugarJ Veteran
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    If you plan to cut aluminum exclusively, don't go with an Ox. I have one with leadscrews I built a while back, and I have the parts for a Workbee build sitting on my bench because the Ox flexes too much when cutting aluminum.
     
  16. Fred Howe

    Fred Howe Well-Known
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    I will take that into consideration. My main use would be cutting .062 to .125 sheet aluminum, but as the saying here in NY goes, "Hey, you never know!" (The lottery slogan).
     
  17. SugarJ

    SugarJ Veteran
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    It's not the thickness of what you're cutting (my cutting passes on aluminum are .1 mm deep), but the torsion flex on the gantry which causes inaccurate cuts. When your perfectly round hole becomes a slight oval and the bearing doesn't fit is an example of what I've had problems with. Thus why I'm switching to a c-beam build as it's a stiffer gantry.
     
  18. Fred Howe

    Fred Howe Well-Known
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    Worth considering. Thanks.
     

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