C-Beam Fab

thingiverse

https://youtu.be/x5a8nJ9vM3Q The C-Beam fabricator is a medium to large format 3D printer, engineered with OpenBuilds C-Beam extrusions for simplicity, elegance and robust structural stability. I've attached a build plate design of 450mm x 450mm, but this can be scaled to requirements, as indeed could the whole project by simply adding required lengths of c-beam extrusion! I started the design using the OpenBuilds gantry plates (3mm aluminum), but modified them to my own specifications and printed them out. Most plates were printed from PLA at 200 degrees C with 25% infill, they seem more than tough enough. I've been operating the 'C-Beam FAB' in anger for about a week now and things are going smoothly. I'm more skilled in CAD than Gcode, so I've had to brush up on my codes! I've calibrated the bed, hotend & XYZ axis and so far it's performing flawlessly! I'm using a 300mm x 300mm silicone heatbed I purchased from Ooznest, and it really is worth the investment (in my humble opinion). 60 degrees C is reached (24v) in about 1 1/2 minutes, the Hemera hotend (direct) reaches 200 in about the same time. Here's a list of extras that'll be needed, obviously stepper motor 'weights' are up to you: I've linked to the places I purchased from, but feel free to source your own of course! If you can't do CAD but need a modification for a hotend or anything else let me know and I'll sort it out for you. NEMA17 Stepper Motors - 1.8° - 1704HS168A - 77oz - 1.68A × 4 https://ooznest.co.uk/product/nema17-stepper-motors/ C-Beam linear rail 4 x 500mm https://ooznest.co.uk/product/c-beam-linear-rail-cut-to-size/ C-Beam linear rail 2 x 210mm ACME 8mm Lead Screw - 540mm × 2 https://ooznest.co.uk/product/acme-8mm-lead-screw/ V-Slot Linear Rail - 20x40mm - 582mm long × 1 https://ooznest.co.uk/product/v-slot-linear-rail-20x40mm-cut-to-size/ 2 x Brass Screw Nut For 8mm T8 Lead https://www.ebay.co.uk/itm/Brass-Screw-Nut-For-8mm-T8-Lead-Threaded-Rod-CNC-3D-Printer-Reprap-Parts-Z-Axis/322775292453?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 16 x XTREME SOLID SMALL MINI V WHEEL V-SLOT https://www.ebay.co.uk/itm/XTREME-SOLID-SMALL-MINI-V-WHEEL-V-SLOT-3D-PRINTER-CBEAM-REPRAP-OX-CNC-ROUTER/283097777197?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 16 x M5 Low Profile Head Screws Bolt 25mm e3d Hemera direct drive extruder/hotend assembly https://e3d-online.com/e3d-hemera Duet 2 WiFi controller board: https://www.duet3d.com/DuetWifi 29/01/2020 Modified top and bottom plates for clearance. 30/01/2020 Added 350mm x 350mm build plate design 10/02/2020: modified Hemera mount to include micro-switch endstop. Added X axis endstop adjuster. Added Duet2 WiFi case & lid 28/02/2020 Modified Y & Z end stop/switch mount 01/03/2020 Added new Hemera mount, spool holder & end-cap, filament guide 03/03/2020 corrected spool holder added modified adjuster wheel & top corner heatbed plates 03/03/2020 Added more holes to Duet 2 WiFi case