StrongPrint

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StrongPrint

Release status: Experimental

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Description	Metal 3D printer based on Enlarged Rostock
License	Creative Commons Attribution
Author	User:Kolergy
Contributors
Based-on	Rostock & Metal Delta RepRap v1
Categories	Category:Printers capable of printing with metals
CAD Models	OpenScad
External Link	http://www.thingiverse.com/thing:329498

Background

Inspired by the Metal Delta RepRap v1 to propose a very affordable metal 3d printer but it is based TIG (GTAW) process which has the potential to be more precise and it allows to use a cheap low power inverter MMA welding power source.

The objective for this printer is to be below 1000 Eur cost & 2mm weld thickness.

It has been developed in two month thanks to the support of the Artilect FabLab in toulouse

It is not yet operational but it is able to deposit metal on a steel plate.

General Design

The printer is based on the Enlarged Rostock [1] which was based on the Rostock from Johann

Bill Of Materials

- Welding source: GysMi 80p 120 (any inverter based MMA power source should do, it might be advised to go up to a 130A one ) (120 to 250 for simple MMA sources)
- Round Shaft: 12mmx1000mm Z-12-1000A x 6 -> 90 Eur Obtained From HPC Europe
- Belt 2m T2.5 x3 & Pulley 18 tooth x3 in fact got 16tooth ones -> 75 Eur + 19 Eur Obtained from eMotion Tech
- Gen 7 V1.4.1 board x 1-> 145Eur (the more recent Ramps FD + arduino due might be a good choice )
- Nema17 400 step/turn x3 -> 47 Eur Obtained from Selectronics (for the 3 axis)
- Nema17 200 step/turn x1 -> 16 Eur eMotion Tech  ( for the extruder ) lower steps is better for rapid retract 
- Carbon rods -> diam 8 Kite frame from Decathlon
- Donut magnets x12 -> 12 Eur ref: R-15-06-06-N from Supermagnete
- Steel balls diam 12.7 x12 -> 4 Eur ref:K-13-N from Supermagnete