RUG/Pennsylvania/State College/Printers/PSU Unit Rainbow
This printer is currently 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.
Build Members [Greg Mann] [Alex Blenheim ] [Mallory Guarino] [Dan Guy] [Alex Kasinec]
This printer is part of the [PSU] reprap group
Contents
Operating Specifications
Operating Specifications | |||||||
---|---|---|---|---|---|---|---|
Name | Status | Design | Electronics | Firmware | Extruder | Temperature | Comments |
Rainbow | Under Construction | Ohm | RAMPS |
Progress
11-2-12 We have almost finished assembling the x-axis carriage and we are waiting on a few parts to finish. We have mounted the z-motors and are ready to mount the x-motor and y-motor as soon as we get the parts needed. After the carriage is finished we hope to print out more parts for the bed of the printer as well as mounting the x-axis carriage.
10-21-12 All of the X axis parts are printed and waiting to be assembled. Our next task is to install the smooth rods associated with the X axis. Also, get the printer ready to be mounted with electronics and motors.
Printer Components
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 | Part Progress |
---|---|---|---|---|
6 | Camiel_frame_vertex_6off | Alternative part by Camiel | Printing Complete | |
2 | z-prusa-motor-mount_2off | Printing Complete | ||
2 | z-bar-top-clamp_2off | Printing Complete | ||
4 | prusa_bar-clamp_2off | Printing Complete | ||
8 | y-bar-clamp_8off | Printing Complete | ||
1 | y-idler-bracket_1off | Printing Complete | ||
1 | y-motor-bracket_1off_mod3-15 | Modified by PSU Reprap Collective | Printing Complete |
Y Carriage Parts
Quantity | File-Name | Comments | Diagram | Part Progress |
---|---|---|---|---|
4 | bed-spring_4off | Printing Complete | ||
1 | OpenY_8mm Belt Harness_1off | Open Y by Buback, modified by PSU Reprap Collective | Printing Complete | |
2 | OpenY_8mm Crossbar Mount_2off | Open Y by Buback | Printing Complete | |
2 | OpenY_Arm 90 - 180_2off | Open Y by Buback | Printing Complete | |
1 | OpenY_arm45 | Open Y by Buback | Printing Complete | |
2 | OpenY_Undercarriage_Bracket_1off | Open Y by Buback | Part Needed |
X Axis Parts
Quantity | File-Name | Comments | Diagram | Part Progress |
---|---|---|---|---|
4 | pla_coupling_nophead-1piece_4off | Alternative part by Nophead | Printing Complete | |
2 | x-180-z-bearing-plate_2off | Printing Complete | ||
2 | PSU_x_vert_sideplate_360_end_2off | Alternative part to x-ver-drive-side-plate-360-end_2off.stl | Printing Complete | |
2 | x-360-z-bearing-plate_2off | Printing Complete | ||
2 | x-360-z-bearing-plate-mirror_2off | Printing Complete | ||
1 | xaxis-motor-bracket_1off | Alternative part by Rhys-jones | Printing Complete | |
4 | x-bar-clamp-m3_4off | Printing Complete | ||
4 | x-bar-clamp-m4_4off | Printing Complete | ||
1 | x-end-bracket_1off | Printing Complete | ||
4 | x-vert-drive-nut-trap_4off | Printing Complete | ||
4 | x-vert-drive-side-plate-180-end_4off | Printing Complete | ||
2 | x-axis-side-plate-nut-jig_2off | 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 | Part Progress |
---|---|---|---|---|
1 | OpenX_Carriage_1off | Open X by Buback | Printing Complete | |
1 | OpenX_Undercarriage_Bracket_1off | Open X by Buback | Printing Complete | |
1 | OpenX_arm_PSU_1off | Open X by Buback Modified by PSU Reprap Collective | Printing Complete | |
1 | OpenXY_bracket | Printing Complete |
Extruder
Currently not included in STL zipfile
Quantity | File-Name | Comments | Diagram | Part Progress |
---|---|---|---|---|
1 | HerringboneDrivenGear | Alternative part by Rhys-jones | Printing Complete | |
1 | HerringboneDriveGear | Alternative part by Rhys-jones | Printing Complete | |
1 | Gregs_accessible_wades_v6 | Alternative extruder by Greg-Frost | Printing Complete | |
1 | Gregs_accessible_wades_idler | Part Needed |
Electronics
We will be installing RAMPS onto this printer...more information to follow, for now check out this link to our class electronics page Electronics and this link for RAMPSRAMPS link