Mortar Bot v.2 CoreXY 3D Printer by MortarArt

Last crawled date: 3 years ago

Deprecated; see here:
M-bot v.1; https://www.thingiverse.com/thing:2386365/
M-bot v.3; https://www.thingiverse.com/thing:3134348
M-bot v.3.5; https://www.thingiverse.com/thing:3889891
THIS IS A WORKING PRINTER
Current Status:
BOM lists all required hardware, though it hasn't been double checked, and I haven't found good sources for everything yet.
The printer is functioning, within an enclosure, and printing both ABS and PLA at a high standard.
I'm still to confirm whether or not this design will be compatible with the e3d toolchanger, but that is the intent.
List of key design changes implemented from the M-Bot v1 (itself a D-Bot remix) - https://www.thingiverse.com/thing:2386365
Wider implementation of aluminium brackets, including the full replacement of some printed corners.
Mirror of the 3 leadscrew design to improve space efficiency
Additional of MGN-9 rails for Y axis.
Lengthening of Y axis, shortening of X axis to reduce weight of moving components.
Reduction of extrusion usage, increase of structural use of enclosure.
Usage of full sized delrin wheels on Z axis.
Bed base to act as enclosure floor.
Use of precut lengths from RobotDigg for almost all extrusions
Features as designed:
400x300mm heatbed.
400mm build height.
Tight enclosure for heat retension.
Compatibility with e3d extruder and hot end options (v6, Volcano, Titan, Aero, Pitan)
Space for user's choice of electronics.
Rigid frame.
Light moving components.
Reduction in sources required for suppliers
Printed Part descriptions (assumes D-bot knowledge):
Recommended to print all in solid ABS, in an enclosure. PET-G would work as a substitute, but some tolerances may be off.
Z Axis:
Two-wheel-carriage-portion-x2 - Part to be bolted to side of 2040 main Z extrusion
One-wheel-carriage-part-x2 - Part to be bolted to opposite side of 2040 main Z extrusion
Z-leadscrew-front-mount-x2 - Mounted next to One-wheel-carriage
Z-leadscrew-rear-mount - Mounted at end of 2040 T-bar
! Z-leadscrew parts available with either 4 bolts or 3 bolts for leadscrew nuts.
XY Frame corners:
back-right-bearing-mount & back-left-bearing-mount - 2020 X extrusion at rear mounted on top.
Right-motor-bracket & Left-motor-bracket - 2020 X extrusion mounted directly under 2040 Y extrusions
Base pieces:
z-motor-mount - Raised motor, to make space for electronics
Rubber-foot-m5 (x4) - Printed feet, to save buying them. Use TPU. Print close to solid.
Rail carriages:
linear-rail-carriage - Mounted on two linear rail blocks, supports incorporated into STL.
Effector carriage:
v-wheel-top-clamp - mounts a full sized delrin V wheel, clamps with 4x M3 bolts to the carriage body
Carriage_Front_bdige_rotated & Carriage_Rear_for_Longer_Stepper - mount two mini v wheels, and the motor for either a Titan or Aero extruder
e3d-v6-cooling-fan-extension - lowers the cooling fan for a full V6 heatbreak.
AC-Bot-fan-shroud-improved-placement - is for a left hand side titan / aero
IR-guide & ir-cover for mounting DC42 ir probe. Requires M3x40mm bolts for regular Titan, and M3x50mm bolts for Volcano. Much shorter for Titan Aero.
Extruder:
Pitan parts adjusted to fit 5x14x5mm bearings for the hob, and a 4x13x4 grooved bearing on the lever, plus a new 5x14x5mm bearing on the motor shaft for the lever.
Optional Pitan body parts with holes for airflow. Suggested to mount with a 40mm fan for use in the enclosure.
Electronics enclosures:
Duet Wifi enclosure, with one major cable hole, and holes for screw down terminals, USB, wifi antenna etc. Requires 12mm M3 stand offs, and stand offs of any length for mounting to aluminium sheet, as well as 5 M3 bolts, and a 40mm blower fan for cooling.
PSU cable cover, to protect from accidental exposure to live lines.
Enclosure instructions / suggestions:
Cut MDF panels to size
Paint exterior
Line interior with aluminium tape
Drill holes for mounting on extrusions
Front panel requires cut corners to fit front motor mounts
Bed panel requires cuts for Z axis wheel carriage and extrusions
Roof panel requires gasket sealant such as silicone along contact points
Suggest installing a handle on the roof panel
Back enclosure corner should be installed over rear panel's top screw mounts as a guide for the roof panel
Consider mounting mirror on rear panel