Thread: operation cnc

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  1. #91
    Dog with bone?
    If the nagging gets really bad......Get a bigger shed:naughty:

  2. #92
    Ok... so where do I buy a long belt from? the distance between screws is approx (i need to measure) 1.1 meters. So assuming im looking at 'Pitch Length' I need one approximately 2.2 metres?

    maxium i can find is about 1.8 metres (1870mm)

    im not bothered what 'pitch' it is etc, so long as its a timing belt. once ive found one il buy pulleys to suite, then bolt my existing stepper drive pulley to the ballscrew pulley (ala jazz)

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  3. #93
    If you go to any decent bearing and belt supplier you can have belts made to any length you want, thats what I did. Cost be about 15+vat if I remember correct.

  4. #94
    Why can't you use open belt? the gantry has to be fixed to one side of it any way?
    If the nagging gets really bad......Get a bigger shed:naughty:

  5. #95
    Sorry just re read and you want the belt to cross the screws. Give ERIKS in Swindon a call

    Address: Unit 2/Ravenseft Pk/Cheney Manor, Swindon SN2 2QP
    Phone:01793 533181

    The do belts of any size within reason and i found them to be the cheapest at the time.
    If the nagging gets really bad......Get a bigger shed:naughty:

  6. The Following User Says Thank You to Swarfing For This Useful Post:


  7. #96
    had one of them nights tonight... first off dropped the ballscrew and bent the end

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    so, decided to fire up the big heavy green machine in the corner. I should perhaps at this point explain that the machine is jinxed. Every single time I use it, it ends up either hurting me, or my wallet

    so spun it up.. the other end whipped round like a b*stard, I grabbed the ballscrew before it killed the dog and...

    Click image for larger version. 

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    thats the tidy version... (all those bearings went everywhere... for a moment, it was like a scene from home-alone)


    so, after a few beers of contemplation, and a motivational chat with jonathon on skype I formulated a plan...
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    better. Not quite jonathon standard of engineering, I agree but much straighter.

    So being an 'engineer' :D now. I decided to use this useful bit of kit too bore the holes in my pulleys

    Click image for larger version. 

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    decided to come up and finish my beer in the house before I broke anything else

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  8. #97
    Better change your name to wobblycogs, oh no - too late!! have a better day tomorrow. G.

  9. #98
    Quote Originally Posted by kingcreaky View Post
    better. Not quite jonathon standard of engineering, I agree but much straighter.
    Oh I don't now looks about the same standard to me.!! . .

  10. #99
    so spun it up.. the other end whipped round like a b*stard, I grabbed the ballscrew before it killed the dog and...



    thats the tidy version... (all those bearings went everywhere... for a moment, it was like a scene from home-alone)

    i'm sorry but this has had me pretty much pissing myself everytime i read it... i just cant keep a straight face when i read over it and i think i've done so 5 times now..

    i'm such a bad person.. and whats funny... i know damn right i'm gonna lose them balls one day

  11. #100
    Last time i bent my end and slung my balls out she gave me such a slap
    If the nagging gets really bad......Get a bigger shed:naughty:

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