Precision? Careful gear ratios, small and medium size.

Discussion in 'Design and Modeling' started by guru, May 10, 2012.

  1. guru
    guru New Member
    Hey guys!
    I'm designing a device in blender. I make a living 3d modelling, so it should be dead-on with accuracy. The device I'm making requires carefully measured gear ratios for good operation.

    I was hoping to create not only gears but other odd-shaped parts and then have them printed here.

    My big questions are: are the materials as strong as this sort of need would require? And is the printing accurate?

    I'll be doing my first order soon, so let me know of any "gotchas" I might need to know about, possible problems, and so forth.

    Thanks!
     
  2. stop4stuff
    stop4stuff Well-Known Member
    The strength and accuracy of the material depends on the chosen material and what size you're planning. And gear ratios will depend on the number of teeth per gear and diameter of the gear.

    WSF is strong at larger dimensions, e.g. 24 tooth LEGO compatible gear - The accuracy is good too.

    Stainless is much stronger, but is not too good on accuracy

    FUD is super accurate, but is not so strong.

    As for odd shaped parts, they're not a problem :)

    Paul
     
  3. guru
    guru New Member
    Thats great, thanks! I should be able to work with that size, just being mindful of what you've mentioned. That Lego gear is awesome by the way!