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  1. #461
    Made some BK & BF mounting pads....only took a photo of one but you get the gist....



    Neil...

    Build log...here

  2. #462
    I dont see any means of fine adjustment, unless the holes are oversize ?
    Spelling mistakes are not intentional, I only seem to see them some time after I've posted

  3. #463
    The holes are oversize so there's 1mm of adjustment movement. I'll be clamping the blocks whilst adjusting them so the final adjustments needed should be very small....thats the plan anyway!
    Neil...

    Build log...here

  4. #464
    Quote Originally Posted by njhussey View Post
    The holes are oversize so there's 1mm of adjustment movement. I'll be clamping the blocks whilst adjusting them so the final adjustments needed should be very small....thats the plan anyway!
    You'll probably need shims behind them too, those cut from empty Guinness cans are a great thickness for this
    Last edited by EddyCurrent; 23-02-2015 at 09:14 PM.
    Spelling mistakes are not intentional, I only seem to see them some time after I've posted

  5. #465
    I'll have to machine down the pads as they're too deep, wouldn't bet against still having to shim something though.....a great excuse to get some beer in
    Last edited by njhussey; 24-02-2015 at 03:40 PM.
    Neil...

    Build log...here

  6. #466
    Well disappointingly I only managed a few diet coke cans at work for shims...clamped one ballscrew to the side and ran the ballnut up and down a few times. The ballscrew has a good wobble to it where it's either bent at the ends or the machining is crap.



    The drive end ballnut pad needed 1.2mm machining off and the NDE needed 1.2mm of shims...

    One of the things that I didn't think through properly with regards to assembly was the X axis ballnut holders. I got the aluminium ones that are small and compact and they fasten from the underside/reverse so on my design I'd gave to take the gantry end plate off to remove them which is far from ideal. I've ordered a couple if MGD16 ballnut holders that can be fastened from the outside. I'll probably have to machine back the base so it is the same height as the current ballnut holders but that's no biggie with the mill.



    Link below is flycutting the DE mount to remove the 1.2mm needed to make it fit.



    Couple of pics cutting the Ali plate with the bandsaw and then squaring and machining to size the ballnut plates.





    I ordered 2 x CSIMO IP-M controllers and 4 x Nema 34 8.7Nm steppers and 4 x 240V HV stepper drivers today...looking forward to those coming. 3 steppers and drivers and one IP-M are for CNCing the WARCO Major GH mill.

    Tomorrow's ordering will be PSU components and belts and pulleys...
    Last edited by njhussey; 26-02-2015 at 09:31 AM.
    Neil...

    Build log...here

  7. #467
    Click image for larger version. 

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    Got some belts and pulleys today, didn't get them from Belting online or anyone like that as our local company we use for bearings etc. Gloucester bearings (Hayley) were so much cheaper for the pulleys and a bit cheaper for the 2525 belt...

    7 off 20 tooth pilot bored pinions - P20-5M-15F 1.73 each

    1 off 2525-5M-15mm HTD belt 14.85

    2 off 265-5M-15mm HTD belt 4.31

    I realise that the pinions aren't pilot bored like the ones from belting online but I was going to have to drill them out to the correct size for the ballscrew ends and stepper shafts on the lathe anyway.
    Last edited by njhussey; 02-03-2015 at 12:28 PM.
    Neil...

    Build log...here

  8. #468
    Got another package just now....it's like Christmas

    Opened the box from Gary @ Zapp...

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    CSMIO....

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    Showing it's size against a Nema23 stepper and AM882

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    Kinco 230V Driver

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    Nema34 8.7Nm motor...(4 off)

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    Showing the difference between a Nema23 and 34...

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    Drilling the pulleys...2x8mm, 4x10mm & 1x12mm

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    Last edited by njhussey; 02-03-2015 at 12:54 PM.
    Neil...

    Build log...here

  9. #469
    Getting close now Neil !

    A cracking set of bits, should run nicely with those fitted.
    Building a CNC machine to make a better one since 2010 . . .
    MK1 (1st photo), MK2, MK3, MK4

  10. #470
    Quote Originally Posted by routercnc View Post
    Getting close now Neil !

    A cracking set of bits, should run nicely with those fitted.
    Cheers!! Only one Nema34 is going on this....it'll be on the X axis driving the twin ballscrews. The other 3 will be going on the mill conversion ill be doing next...hoping to do more tomorrow but work is getting in the way!
    Neil...

    Build log...here

  11. The Following User Says Thank You to njhussey For This Useful Post:


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