TriMatical
Release status: preliminary
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| Description | Delta Robot 3D printer from MiniTec profile system
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| CAD Models | [GrabCAD]
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TriMatical - yet another linear delta printer project, design goals where mainly scalability and use of mostly commercially available components. Aluminum framing is well covered industrially, one can choose between many flexible profile systems, exploiting mass produced quality, relative cheapness and global availability. Overall design is loosely based on previous nice examples of linear deltas, namely the Kossel variations, that are generally using less rigid and smaller extrusions. Structural frame is made from MiniTec profile (45x32mm, 45x45mm can be used), Power-Lock fasteners and custom prismatic 60degree angle centerpieces. Frame volume should scale to 2 cubic meters without any problems.
Design highlights
- Linear delta printer
- Minimal number of custom components
- Relatively high stiffness
- No plastic frame components
- GT2 belt running on smooth side reducing belt interference
- Scalable to 2 cubic meter volume
Bill of Materials
Minitec components
- 3x 800mm MiniTec 45x32mm (20.1055)
- 6x 150mm MiniTec 45x32mm (20.1055)
- 6x MiniTec Power-Lock fasteners (21.1018 or 21.0818) [big 45x45mm frame with additional 12x Angle
sheets (21.0018)
- 21x M3 square nut with position fixing (21.1309/2)
- 15x M6 square nut (21.1330)
Fasteners
- 6x ISO 7380 M8 25mm round head internal hex bolt (central triangles)
- 6x DIN 912 M6 20mm internal hex bolt (carriage physical end stops)
- 9x DIN 912 M6 16mm internal hex bolt
- 6x DIN 912 M5 12mm internal hex bolt
- 6x DIN 912 M3 55mm internal hex bolt
- 50x DIN 912 M3 12mm internal hex bolt
- 3x DIN 7991 M3 12mm bolt (any countersunk ~12mm M3 will do)
- 6x 60mm M3 threaded rod
- 3x 40mm M3 threaded rod
