A parametrizable holder for mounting a hexagonal heat bed raised by some millimeters on a Kossel Mini. Suitable for Kossels with 15x15 extrusions. Height and other dimensions can be adjusted easily by changing proper variables in the OpenSCAD file
Note: The bed will be raised slightly by about 12mm, to have enough clearance for the large thermal fuses, the RAMPS LCD connector (RepRapDiscount Controller) and my cork insulation.
I used Slic3r with 0.2mm layer thickness and a 0.5mm J-Head nozzle.
Note: Before installing your heating pcb you should insulate its bottom. It helps heating up much faster and protects your electronics and cables from heat. I used some 3mm thick cork.
- Important: Turn off power and remove USB cable before working on your electronics. Don't risk frying your RAMPS by shorting some contacts!
- Slice model and print three heat bed holders.
- Mount all heat bed holders with screws and nuts into position, but don't fasten it yet.
- Center the front holder and move the others to the back by sliding them within the aluminium extrusions.
- Install cables from heat bed.
- First insert pcb on its side with the solder joints from the thermistor into the front holder.
- Mount remaining 2x glass bed holders by sliding them in from the back onto the pcb.
- Center all holders and put glass bed on top.
- Adjust glas bed brackets till the glass bed is centered.
- Fasten all screws.
- That's it. A nice, raised and stable heat bed.
Parts used (BOM):
- 3x glass bed holders (printed)
- 6x M3x20mm allen head screws
- 6x M3 nuts
- 1x hexagonal pcb bed heater
- 1x borosilicate glas bed 170mm diameter, 3mm thick