linear rod conversion for CR6-SE

couldnt find a linear rod conversion made for the cr6-se so i made one myself, doesnt change range of motion and has an adjustable z endstop, bolts up where the old motor mount and tensioner were, moves the y axis limit switch so moving it is required, also removing the screw that hits it from the bed

install m3x20 bolt into the linear bearing housing Z endstop and lock it in place with the nut before installing onto printer as it can be quite a hassle to install it while housings are in place

for installing the linear bearings first test their fit into the housing by trying to push them in by hand, if it feels like it wants to go in but will require alot of force the fit is correct, if not sand the inside a bit. put them in the freezer for atleast an hour prior to assembly and insert them into the housing straight from it, the dimensions are made for a press fit by freezing, i recommend getting a 12mm socket/rod to push the bearings in as they need to push up against a lip inside the housing

BOM:

8  M3x4.2x5 heat set inserts

1  M4x6x5 heat set insert

2  M5x15(or longer) bolts

6  M3x8 bolts or M3 set screws

1  M3x20 bolt and nut

2  LM8UU 45mm long linear bearings

2  380mm 8mm linear rods

Hardware used from stock

1  Y endstop bolt(used for tensioner arm)

3  M5 bolts from motor mount(used for motor mount)

4 M3 bolts from motor(used to connect motor)

2 m3 bolts from limit switch(for limit switch)

1  m3 bolt from tensioner arm(used for tensioner arm)

4 m5 locknuts and washers from and for bed mounts

i printed everything except the tensioner arm out of PLA with 5 walls and 4 top and bottom layers at 45% infill with scarf seams for less sanding of inner holes

tensioner arm is printed with PETG and same settings as PLA parts

use supports for the tensioner body and tensioner arm

print orientation is correct for all STL's

if you intend to print anything with a bed over 60c i recommend printing the linear bearing housings out of petg or anything that softens at a higher temp then PLA as the mounting plate gets up to 55c when printing with a 90c bed in my testing

if you have any other questions about either assembly or cad related feel free to message me and ill try my best to answer. full solidworks cad is also available by request

V2 CHANGES:

added support on the top side of the motor to help with the motor mount flexing when belt is tensioned 

added spacers inside the tensioner arm for centering the pulley