Fixed OpenBuilds End-Stop mounting plate

mounting plate that takes into account that bolts have heads

Maker/DIY

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Description

The mounting plates that come with the OpenBuilds "End Stop Kit" are crap.
* Either you force the M3 bolts through the 2.5mm end stop and find no place to fixate them in the unthreaded 3mm holes in the plate
* or you thread the M3 bolts through the plate and fixate them in the end stops...but then you have the head of the plates between the plate and the aluminium profile and things jsut don't aline flat.

I present 2 versions.
* The "thread cutting" version assumes you 3D print the part and cut an M3 thread into the mounting holes for the end stop.
* The other version has additional space for the head of the M3 bolts.
Both are also properly sized for the mounting holes of the end stops and don't use long holes to adjust to unknown sizes. The end position of the arm is always slightly beyond either the right, upper or lower side of the plate. (whatever position you choose for the switch)

Note: In any case you are advised to tap an M3 thread into the end stop first. The holes are 2.5mm and forcing an M3 bolt through it, like obviously planned by OpenBuilds, may damage your end stop.

Blog posting:
https://marcuswolschon.blogspot.de/2017/01/fix-for-broken-openbuilds-end-stop-kit.html

Documents

  • Placeholder
    Open Builds Better End Stop Plate
    AD_PRT  β€“  330 kb
  • Placeholder
    Open Builds Better End Stop Plate Embedding
    AD_DRW  β€“  360 kb
  • Span1
    Open Builds Better End Stop Plate Embedding
    STL  β€“  1.1 mb
    0:20 h  β€“  2 g  β€“  33×20×6 mm
  • Placeholder
    Open Builds Better End Stop Plate Embedding
    AD_PRT  β€“  440 kb
  • Span1
    Open Builds Better End Stop Plate Threadcutting
    STL  β€“  500 kb
    0:13 h  β€“  1 g  β€“  33×20×3 mm

Issues

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Comments

730a061596c420c8915d9f20bd5d89e1?default=blank&size=40Marcus Wolschon printed this ago
Carousel thumb img 20170124 211606
Printed on:
Ultimaker - The Ultimaker 2
Result:
works fine
730a061596c420c8915d9f20bd5d89e1?default=blank&size=40Marcus Wolschon published this design ago