Newbie OmioCNC report - Page 171


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Thread: OmioCNC report

  1. #2041
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    Default Re: OmioCNC report

    In case it helps, I found that M6 or M8, sorry can't remember which, coach bolts (round heads with a few mm of square profile at the top of the shank) fit pretty nicely and cost next to nothing at the local hardware warehouse. Push them in, drop your gear on top, add a washer if you like and wind a nut down on top. Worked well for me before I gave the T-slot deck the shove in favour of something a little sturdier.



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    Default Re: OmioCNC report

    Fantastic doogle, that might be it.I have set Delay in seconds which makes sense but maybe as you mentioned in Gen Config Dwell is in ms, just might be it!
    I will give it a go and let you know.
    cheers..


    Quote Originally Posted by doogle View Post
    Hey Nick... I saw this being discussed previously but never got around to replying for some reason.

    I'm not sure if you've tried this, but in Mach3's Ports & Pins -> Spindle Setup, I had to set the Delay Spin UP/DOWN values in milliseconds (rather than seconds as the GUI suggests)... so for 8 seconds, I entered 8000.
    I vaguely remember seeing something about 'G04 Dwell in ms' (in General Config) affecting the unit for the spindle delay, but the default is unchecked, so it should be in seconds.

    This was the issue I had with the spindle delay on my machine... and of course setting '8' for 8 seconds but actually getting 8 milliseconds would make it look like the setting was having no effect at all.




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    Default Re: OmioCNC report

    I received my seconhand, 3-year old Omio X6-2200L a week ago, have been busy cleaning it and getting familair with the machine and with design and control software. And of course I started to read this topic from page 1. I'm now at page 10 and learned already that I have to check and probably redo the grounding of the spindle and controller box contents. Thx for the VFD schematics and your star ground point in the control box, zeeflyboy.

    I'm not planning to upgrade any hardware in the control box yet, and I neither will use a 4th axis, but are there any other points of interest that I should read here (and on what page appr. LOL)?

    Two small questions:
    1. how did you ground the machine's frame? The previous owner ran an earth wire from the end of the frame, from a bolt near where the Y-axis motor is mounted, to an earthed wall socket.
    2. Omio's machine manual tells us to use sewing machine oil for the guide rails and white (lithium) grease on the screw mandrel, whatever that is. Is that sufficient or should I indeed grease the rails through the grease nipples?

    Anyway, I've only dry run this machine for now, jogging it around a bit. I first want to get a bit more confident, but I already felt what dharmic described in page 2.



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    Default Re: OmioCNC report

    You ‘should’ use white lithium grease on your rails and screws, or better proper way oil. But they are exposed, and both those things attract chips like flies and they get stuck on. I’ve been using silicone spray lube on mine and it runs smooth, chips don’t get stuck and not had any issues whatsoever. Just be sure to do it regularly. There is also ptfe lubricant which will probably work better.


    Sent from my iPhone using Tapatalk



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    Default Re: OmioCNC report

    1. That's how I run mine, and it got rid of a bunch of noise issues which would bounce the USB connection after a couple of hours of spindle time.
    2. I've managed to snap a couple of the nipples and could never get a great deal of oil into 'em anyway. So I general put a few drops of machine oil along the leadscrews and linear rails and run each axis from one extent to the other a few times to get my lube on.

    Good luck with the reading - this thread has gotten somewhat out of control (about a hundred pages ago) and really, I - or some other volunteer - should ask to break it out into multiple related threads in one forum.



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    Default Re: OmioCNC report

    Thx.

    Quote Originally Posted by Mmpie View Post
    ......... There is also ptfe lubricant which will probably work better.
    Sent from my iPhone using Tapatalk
    I was told not to use ptfe (Teflon) because " Avoid anything with Teflon in it. It will create Fish eyes in your finishes forever. It is almost impossible to remove once it is in there."



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    Default Re: OmioCNC report

    Anyone of you made and use a spoil board for this machine? If so, a picture would be great. I want to lasercut one from MDF but can't quite figure out how to model it. I am planning to kiss-cut a nice pattern on it, straight horizontal and vertical lines, with 1 cm spacing. And a square ruler guide, or maybe rulers around the complete board, also kiss-cut into the MDF. And probably cut out long slots, so that the Alu T-slots are still usable.



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    Quote Originally Posted by erik65 View Post
    Anyone of you made and use a spoil board for this machine? If so, a picture would be great. I want to lasercut one from MDF but can't quite figure out how to model it. I am planning to kiss-cut a nice pattern on it, straight horizontal and vertical lines, with 1 cm spacing. And a square ruler guide, or maybe rulers around the complete board, also kiss-cut into the MDF. And probably cut out long slots, so that the Alu T-slots are still usable.
    What are you intending on making? Best solution will depend largely upon the general type of work you want to do.

    I generally use a consumable fixture plate made from SRBP. Advantage over MDF is that it’s not affected by water so you can use coolant without causing the MDF to swell and throw things out of level, disadvantage is just cost.

    For a lot of the work I’m doing at the moment, that works well for me - I can drill through into the bed and then tap and use that as a fixture point for the rest of the machining.

    If you check out my thread on my new router I’m building in the DIY section you’ll see a few different ways I approach work holding on the X6. Again, may or may not be of interest depending on your type of intended work.



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    Default Re: OmioCNC report

    Quote Originally Posted by Mmpie View Post
    Something so simple

    Yes I got rid of the bellows too. The hiwin bearings and ball nut both have wipers on, so they should keep most the crap outside. Even with them removed Z travel is still prohibiting, particularly with typical jobber length drills.

    Off topic but just thought I’d share, this beasty turned up today







    Sent from my iPhone using Tapatalk

    Damn, want to adopt an overgrown kid?



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    Default Re: OmioCNC report

    Quote Originally Posted by zeeflyboy View Post
    ...... Advantage over MDF is that it’s not affected by water so you can use coolant without causing the MDF to swell and throw things out of level.....
    Good info, didn't think of the swelling issue with MDF. I've never heard of SRBP, but what I do use every day is acrylic. That doens't swell and doesn't hurt cutters. So I probably just make two of the same spoil boards, one of MDF and on top of that one of plexi. Easy job with the lasercutter.

    Zeeflyboy, on page 8 you mentioned that you replaced the 3-wire spindle cable for a4-wire shielded one to get proper ground. What kind of connector did you use to connect this cable at the back of the control box? Original the connector is a 3-pin connector.



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    Default Re: OmioCNC report

    Quote Originally Posted by zeeflyboy View Post
    Damn, want to adopt an overgrown kid?
    Haha. If you’re not too far away and need something your machine can’t handle maybe you could have a play..

    Quote Originally Posted by erik65 View Post
    Good info, didn't think of the swelling issue with MDF. I've never heard of SRBP, but what I do use every day is acrylic. That doens't swell and doesn't hurt cutters. So I probably just make two of the same spoil boards, one of MDF and on top of that one of plexi. Easy job with the lasercutter.

    Zeeflyboy, on page 8 you mentioned that you replaced the 3-wire spindle cable for a4-wire shielded one to get proper ground. What kind of connector did you use to connect this cable at the back of the control box? Original the connector is a 3-pin connector.
    I would recommend ditching the rear connector altogether and running the new cable and shield all the way up to the VFD. That then shields the important stretch of cable moving past the drivers and BOB inside the box. If you ever need to remove it, the VFD has screw clamp terminals so it’s easy peasy anyway. No need for connector.


    Sent from my iPhone using Tapatalk



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    Default Re: OmioCNC report

    Quote Originally Posted by Mmpie View Post
    ..... I would recommend ditching the rear connector altogether and running the new cable and shield all the way up to the VFD. That then shields the important stretch of cable moving past the drivers and BOB inside the box. If you ever need to remove it, the VFD has screw clamp terminals so it’s easy peasy anyway. No need for connector.Sent from my iPhone using Tapatalk
    That might be a good idea too. In the meanwhile I did find the source for the 16mm connectors, thx to a comment on page 13 (yeah, I'm slowly reading through this complete topic! )



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