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Building Core XY dual extruder from scratch (3 replies)

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Hello all,

Im in the process of designing and building a core XY 3d printer.

Frame: 500mm 2020 alum extrusion w T slot Cube.

XY: will be on 3 Mgn 12 rails 2 for Y and 1 for X. Im hoping to use a 2020 alum extrusion for the X support bar. Would I need a smooth rod aswell or is this straight enough?

Am thinking of printing the x and y carriages. The motor mounts aswell unless you believe an aluminum one is better.

Z: want to put it on rails but i am very undecided as to how.

Z CARRIAGE: Im thinking of 4 2020 alum extrusions in a square and some sort of mounts for the lifting mechanism.

Bed : thinking of 400 x 400 bed.

Board: smoothieboard mks sbase v1.3 w wifi and tft LCD

Psu: unsure

Planning on using normal switch endstops and maybe auto level sensor if possible.

Main issue: live in sweden and finding reasonably priced parts is a hassle, dont know many EU vendors.

Thanks in advance for help and tips

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