Hey! This thing is still a Work in Progress.
Files, instructions, and other stuff might change!
BigFoot: The Openbeam Openrail Cartesian Printer
11
Likes
3002
Downloads
1558
Views
Published on February 2, 2013
Description
Bigfoot is the printer I want to make. Since no existing designs included the 3 facets I want in a printer, I am designing bigfoot as well. Those 3 characteristics are: Openbeam frame, Openrail linear motion, and at least 300x300 build platform. Bigfoot's Z axis is not limited by frame geometry. it is theoretically possible to stuck uncut 1meter openbeams on with full-length openrails and print almost 1 meter up. The height of the X axis would be subtracted from that meter, so a meter-tall object would not be able to be printed.
I'm using richrap's quick Fit X carriage, because I've had great success with it on my current printer, and even designed a QUBD dual extruder mount for it. That's the extruder I'm planning to use in this printer.
I'm using richrap's quick Fit X carriage, because I've had great success with it on my current printer, and even designed a QUBD dual extruder mount for it. That's the extruder I'm planning to use in this printer.
Instructions
This is a work in progress, so don't print any of it. When I've finished iteration through the design far enough to complete construction of one, I'll post a BOM and build instructions. Until then, look at the design files and provide useful suggestions.
Version 0.2 files uploaded in a zip archive. Not done yet by any stretch, but the openbeam lengths should be correct. I've cut my openbeams to the sizes specified. Will post more details in the BOM.
0.3 uploaded. Y axis drive is designed. Based on clearance tests in the assembly, it should allow full travel while only requiring an 848 long belt. I'm planning to use complete loops of belt rather than cut them. I've also changed the frame triangle back to 75-15-90 from 73-17-90 as in version 0.2.
There should still be room for an ATX power supply within the frame under the Y carriage.
Version 0.4 files uploaded in a zip archive, as well as a new STEP file with the completed printer. This is the version I'm going to assemble initially, to sort out any issues which modelling cannot show me. Alas this design is not easy to assemble, as every bracket i designed is connected to every OB extrusion with at 3 M3 screws and nuts, and putting them all in is quite tedius. However, I believe that the tedium will pay off in terms of frame strength and rigidity.
I've run out of M3 nuts, but more are on order, so assembly progress is slowed.
Version 0.2 files uploaded in a zip archive. Not done yet by any stretch, but the openbeam lengths should be correct. I've cut my openbeams to the sizes specified. Will post more details in the BOM.
0.3 uploaded. Y axis drive is designed. Based on clearance tests in the assembly, it should allow full travel while only requiring an 848 long belt. I'm planning to use complete loops of belt rather than cut them. I've also changed the frame triangle back to 75-15-90 from 73-17-90 as in version 0.2.
There should still be room for an ATX power supply within the frame under the Y carriage.
Version 0.4 files uploaded in a zip archive, as well as a new STEP file with the completed printer. This is the version I'm going to assemble initially, to sort out any issues which modelling cannot show me. Alas this design is not easy to assemble, as every bracket i designed is connected to every OB extrusion with at 3 M3 screws and nuts, and putting them all in is quite tedius. However, I believe that the tedium will pay off in terms of frame strength and rigidity.
I've run out of M3 nuts, but more are on order, so assembly progress is slowed.
You must be logged in to post a comment.
License
BigFoot: The Openbeam Openrail Cartesian Printer by oryhara is licensed under the Attribution - Creative Commons license.
More from oryhara
More from 3D Printers
How is this build going?
slowly. Working on other things at present. A few aspects of this design have changed in development, and the new design files are not uploaded.
I have all the motors and electronics, what remains is to put it all together. I simply have not had the time. My workshop is currently repairing a UAV, but this is next in the queue.