Thread: New start

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  1. #101
    Quote Originally Posted by Nr1madman View Post
    Nope!
    I have 8mm slots with 40mm between the slots. That's why I had to make the adapter plates for the gantry. With 45mm extrusion the bearings could be bolted straight on.
    The distance between BK12/BF12 fittings is 46mm they do fit but it's less than perfect, my gantry is fit like this. I made adapters for my bottom axis (With the proper 46mm spacing) and you can tell the fit is better.

    Click image for larger version. 

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    Personally if I build with extrusion again I will make adapters for all the BK/BF fittings. (A non issues for the Z of course)


    T Nuts are expensive here I spent £45 on just over 100 to fit my Hiwin's.
    Last edited by Desertboy; 19-10-2017 at 06:06 PM.
    http://www.mycncuk.com/threads/10880...60cm-work-area My first CNC build WIP 120cm*80cm

    If you didn't buy it from China the company you bought it from did ;)

  2. #102
    Quote Originally Posted by Desertboy View Post
    T Nuts are expensive here I spent £45 on just over 100 to fit my Hiwin's.
    Ouch! I bought 50 tnuts from aliexpress for around 10-12£ with shipping included.
    Got no VAT either :D


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  3. #103
    Got ahold of grease nipples for the ballscrews and lithium grease today.

    Good news, the slides run much quieter and maybe a little smoother. The ballscrews are definitely quieter!

    Bad news, the end seals on the linear bearings leak a bit of grease :( might just be that I tried to fit to much grease :D
    I pumped once, slid the axis back and forth for distribution and then pumped again and got leakage. Normal or bad quality bearings?

    Worse news, after greasing the ballnuts they spew out dirt and debrie from the seals unto the ballscrews. Should have cleaned them before screwing everything together!
    It's not so many screws to dissasemble but the end bearings are pressed on and I don't have a proper remover (don't know the English word for it) damnit!

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  4. #104
    Hmm Tap,tap...gouhh tap tap....anyone here!

  5. #105
    Haha its slow going :D

    My 4 weeks old son is taking all my time..!
    Got some work done on my y axis.. might be able to get some shed time tomorrow and post something if you want? :)

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  6. #106
    Nice for the son that say little not understanding words already, I now that the free time is too little over there,I am just teasing you since I do not have nothing better, about cnc stuff to do,lol!
    And please post that Z axis work , since this is the most complicate work for me to do....haha.
    Ps I spend two hours today at Airport customs ,grate experience ....

  7. #107
    Small ghetto update today!

    Made a bracket for my y axis.
    Had forgotten to calculate with the adapter plates for the bearings that I made so I had to add a spacer :(

    Also my aluminium stock is running low :D
    Had to use 2pcs of 4mm thick aluminium for my bracket instead of the planned 10mm. The upside is that I could cut a hole through the first piece for the ballnut bracket to fit. Had planned to pocket into the 10mm piece. Now I didn't have to :)

    Also I did a motormount for the Y motor.
    Will revisit it sometime later with a file and some different screws ;)

    And some pics





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  8. #108
    Quote Originally Posted by Nickhofen View Post
    Nice for the son that say little not understanding words already, I now that the free time is too little over there,I am just teasing you since I do not have nothing better, about cnc stuff to do,lol!
    And please post that Z axis work , since this is the most complicate work for me to do....haha.
    Ps I spend two hours today at Airport customs ,grate experience ....
    Sorry about no Z axis pics today ;)
    Just realised why all my holes for the Z axis rails were wrong. In the cad I got the outline of the holes instead of center of the holes. No wonder it did not work and I had to drill larger holes and use nuts instead of tapped holes.
    Realised this is the same problem with my holes for the spindle bracket :(
    Really have to remake the Z axis dropplate and make it work soon ;)

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  9. #109
    Sorry to hear about the misalign holes mistake!

  10. #110
    Quote Originally Posted by Nickhofen View Post
    Sorry to hear about the misalign holes mistake!
    You know what.. it's actually okey!
    Im not even mad about it (I usually am)
    I put this down as learning ;)
    To bad that it's a part that I can't remake myself but have to get cnc'd
    I'm way to bad at marking and drilling holes accurate even if I order flat aluminium hehe

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