RUG/Pennsylvania/State College/Printers/PSU Unit Rainbow

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PSU Unit Magical Mystery Printer

Build Members [Greg Mann] [Alex Blenheim ] [Mallory Guarino] [Dan Guy] [Alex Kasinec]

This printer is part of the [PSU] reprap group

This printer is under construction starting in the Fall 2012 semester. It is an [OHM] model developed by the reprap PSU community. Its progress and pictures will be posted here as it is constructed as a resource for the group members and the community to see the printer being constructed and hopefully give more insight to the building of an [OHM] printer.

Progress:

10-21-12 At this point all of the xaxis parts are printed and waiting to be assembled, our next task is to install the smooth rods and get the printer ready to be mounted with electronics and motors.


Below is a list of all parts that will need to printed for this specific printer, this table can also be found on the [OHM] page. Also included in this table is an inventory column to help the group keep track of what needs to be printed.

Frame and Z Axis Parts

Quantity File-Name Comments Diagram Parts Printed?
6 Camiel_frame_vertex_6off Alternative part by Camiel Camiel frame vertex 7off.JPG Parts Printed?
2 z-prusa-motor-mount_2off Pm-z-motor.jpg Parts Printed?
2 z-bar-top-clamp_2off Z-bar-top-clamp 2off.JPG Parts Printed?
4 prusa_bar-clamp_2off Pm-bar-clamp.jpg Parts Printed?
8 y-bar-clamp_8off Y-bar-clamp 4off.JPG Parts Printed?
1 y-idler-bracket_1off Y-idler-bracket 1off.JPG Parts Printed?
1 y-motor-bracket_1off_mod3-15 Modified by PSU Reprap Collective Y-motor-bracket 1off mod3-15.JPG Parts Printed?

Y Carriage Parts

Quantity File-Name Comments Diagram Parts Printed?
4 bed-spring_4off Bed-spring 4off.JPG Parts Printed?
1 OpenY_8mm Belt Harness_1off Open Y by Buback, modified by PSU Reprap Collective 8mm Belt Harness 1off.JPG Parts Printed?
2 OpenY_8mm Crossbar Mount_2off Open Y by Buback 8mm Crossbar Mount 2off.JPG Parts Printed?
2 OpenY_Arm 90 - 180_2off Open Y by Buback Arm 90 - 180.JPG Parts Printed?
1 OpenY_arm45 Open Y by Buback Arm 210.JPG Parts Printed?
2 OpenY_Undercarriage_Bracket_1off Open Y by Buback OpenY Undercarriage Bracket.JPG Parts Printed?

X Axis Parts

Quantity File-Name Comments Diagram Parts Printed?
4 pla_coupling_nophead-1piece_4off Alternative part by Nophead Pla coupling nophead.JPG Printing Complete
2 x-180-z-bearing-plate_2off X-180-z-bearing-plate 2off.JPG Printing Complete
2 PSU_x_vert_sideplate_360_end_2off Alternative part to x-ver-drive-side-plate-360-end_2off.stl PSU x vert sideplate 360 end 2off1.JPG Not Used
2 x-360-z-bearing-plate_2off X-360-z-bearing-plate 2off.JPG Printing Complete
2 x-360-z-bearing-plate-mirror_2off X-360-z-bearing-plate-mirror 2off.JPG Printing Complete
1 xaxis-motor-bracket_1off Alternative part by Rhys-jones Xaxis-motor-bracket 1off.JPG Printing Complete
4 x-bar-clamp-m3_4off X-bar-clamp-m3 6off.JPG Printing Complete
4 x-bar-clamp-m4_4off X-bar-clamp-m4 4off.JPG Printing Complete
1 x-end-bracket_1off X-end-bracket 1off.JPG Printing Complete
4 x-vert-drive-nut-trap_4off X-vert-drive-nut-trap 4off.JPG Printing Complete
4 x-vert-drive-side-plate-180-end_4off X-vert-drive-side-plate-180-end 2off.JPG Printing Complete
2 x-axis-side-plate-nut-jig_2off X-axis-side-plate-nut-jig 2off.JPG Printing Complete

X Carriage

Two major issues affected the Open-X carriage: carriages occasionally "walk" up off the tracks, and inconsistent spacing of the undercarriage bracket occasionally allowed the extruder to move/twist laterally. Both of these issues were minimized through modifications by user Joe Bartolai. The OpenX Arm was shortened and an offset was added so that the bearing attached to it is centered on the rail. The OpenX undercarriage bracket was also modified by making the angle steeper where the lower bearings contact the rail and by increasing the spacing where the undercarriage bracket attaches to the carriage. Part models will be added soon.

Quantity File-Name Comments Diagram Parts Printed?
1 OpenX_Carriage_1off Open X by Buback OpenX Carriage 1off.jpg Parts Printed?
1 OpenX_Undercarriage_Bracket_1off Open X by Buback OpenX Undercarriage Bracket.JPG Parts Printed?
1 OpenX_arm_PSU_1off Open X by Buback Modified by PSU Reprap Collective OpenX arm PSU 1off.jpg Parts Printed?
1 OpenXY_bracket OpenXY bracket.jpg Parts Printed?