I created these to fix an issue that i had due to poor handling by the courier .
4x 3d printed z wheel carriage
4x 6mm http://openbuildspartstore.com/eccentric-spacer/
12x 30mm http://openbuildspartstore.com/low-profile-screws-m5/
8x (M5 washer works also) http://openbuildspartstore.com/precision-shim-10x5x1mm/
4x m6 washers like these. https://www.amazon.com/Steel-Washer-Plated-Finish-Metric/dp/B009OK4VLQ
take off the wheels from the cart.
and remove it from the z stage.
insert one 6mm eccentric spacer into each carriage .
screw the new carriages to the carts with the m5x30mm screws. nice and tight.
(wheels are now held inplace with nuts.)
copper spacer first then wheel last precision shim. (or a m5 washer works)
last the nut and hold the bolt with the allen key so it does not want to loosen.
put the carraiges back on the z stage.(do not tighten the bolts till the end)
now the mini wheels .
put the M6 washer on the m5x30mm bolt put it in thru the hole a step at a time now put a mini-v wheel precision shim then the wheel then another mini-v wheel precision shim then the nut. tighten up the eccentric spacers to hold the wheels enough . not to tight( you should be able to spin the wheels with slight resistance ) finaly tighten the carriages to the z stage.
(i do advise to relevel and retighten the z belts at this time.)
Im a builder by day and a serious 3dp enthusiast by night.. (Never sleep and keep printing)
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