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Umo+ aluminum hot end holder measurements

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You can find the drawing and CAD model for this part on GitHub in the Ultimaker section.  The Ultimaker part number for this part  is B 1048-A2P-A "Print Head Hot End Holder".  The material listed on the drawing is aluminum alloy EN AW-6060 T66 which is similar to 6061-T6.  If you open the STEP file with any CAD program, you will be able to measure all of the part's dimensions.  The holes you are referring to are 14.0mm in diameter with 0.5mm x 45° chamfers on both sides.

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Look here for all of the parts information for the UMO+:




Once you find the part you need, look at the drawing (PDF) for the material.  Do a Google search if the material spec is not obvious.  For the dimensions, open the STEP file in any CAD program (SolidWorks, Inventor, Fusion360, OnShape, etc.) and you can measure all of the features.


The part you are looking for is B1818-B Print Table Base Plate.

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