KosselHybrid
KosselHybrid
Release status: experimental
Contents
Introduction
The KosselHybrid is a planned larger GPL-compliant variant of the Kossel that uses parts available for the Rostock MAX, Kossel Pro and other kits to give a much larger print base.
Design Goals
- Zero backlash.
- Magnetic connecting rods
- Triple fans on the print head
- Type: Delta printer
- Speed: 320 mm/s in all 3 directions.
- Resolution: 100 steps/mm in all 3 directions.
- Repeatability: better than 0.03 mm (30 micron)
- Build volume: cylindrical, 255mm diameter, 240mm height.
- Footprint: triangle, 450 mm width (360mm OpenBeam + printed corners).
- Frame height: 600 mm.
- Print surface: heated round glass, doesn't move.
- Mass of end effector with hotend: less than 50 grams.
- Simplicity: fewer than 200 parts.
- Hardware cost: less than $700 USD.
- Fully automatic print surface level calibration (autoleveling).
Bill of Materials
Printed parts
Most parts identical to Kossel
Frame
TBD
- 3x 600mm vertical OpenBeam from builda3dprinter.eu or OpenBeam.de or Misumi HFS3-1515
- 9x 360mm horizontal OpenBeam from makerbeam - designed for the Kossel Pro - or Misumi HFS3-1515
- 1x Onyx 310mm heated bed - designed for the Rostock MAX
- 1x 300mm round borosilicate glass plate - designed for the Rostock MAX
Fasteners
TBD
Linear motion
Identical to Kossel
Diagonal push rods
TBD
- 12x Traxxas 5347 rod ends Traxxas 5347 $14.99
- 12x M4x20mm set screws
- 6x 180mm Carbon tube ID=4mm
Bowden
Identical to Kossel
Endstops
Identical to Kossel
Automatic bed leveling probe
Identical to Kossel
Electronics
Identical to Kossel
Tools
This is not a comprehensive list, but should give you an idea of what tools may be required. Review all build manuals/videos to ensure you have all necessary tools.
- 1x metric caliper
- 1x M4 Tap Drill bit
- 1x M5 Tap Drill bit
- 1x 1.5 mm allen wrench
- 1x slow-set epoxy
Assembly instructions
TBD
Links
Reearch purposes:
- kossel clear triple-fan arrangement
- magnetic rod end
- kosselplus - A-Frame stiffening, magnetic rods and more
- more magnetic rod parts
- magnetic carriage part for kossel 1.5
- GT2 16 tooth pulley - reduced diameter gives slightly higher resolution.
- 288mm magnetic arms upgrade
- MK8 Drive Gear
- 42BYGHM809 NEMA-17 stepper motor with 400 steps/revolution and 0.48Nm torque (note warnings about these motors though: [1]