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  1. #2
    Staff Engineer printbus's Avatar
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    May 2014
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    Highlands Ranch, Colorado USA
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    What I did in my build was first square up the x-carriage before tightening up all the X-carriage hardware. This was done with a long metal ruler as a straightedge laying from the X-motor plate to the X-idler plate. Details on this is available at the X AXIS ALIGNMENT post in my build thread.

    An R/C pitch gauge used as a precision digital level was used to verify this approach gave me an x-carriage aligned with the Y-bed without the heater installed. Now when I want to check for equality between the two Z-rods, I just set the ruler across the two plates and make sure the ruler still sits flat on both ends.

    FOLLOWUP COMMENT: Here is my rationale for squaring up the x-carriage early in the build. A total of eight M5 bolts fasten the two horizontal v-rails to the x motor mount plate and the x idler plate. Tightening the eight bolts turns the x-carriage into a very rigid assembly. If the x-carriage is not square when the bolts are tightened, the Z-rods and the X-carriage will be put under strain when trying to straighten it later. IMO, that strain increases the chance of stepping issues with the Z-motors.
    Last edited by printbus; 12-08-2014 at 11:22 AM. Reason: readability

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