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Delta Idler End:MOST
| By Michigan Tech's Open Sustainability Technology Lab.
Wanted: Students to make a distributed future with solar-powered open-source 3-D printing.
|This page is part of an international project to use RepRap 3-D printing to make OSAT for sustainable development. Learn more.
Research: Open source 3-D printing of OSAT • RecycleBot • LCA of home recycling • Green Distributed Recycling • Ethical Filament • LCA of distributed manufacturing • RepRap LCA Energy and CO2 • Solar-powered RepRaps • solar powered recyclebot • Feasibility hub • Mechanical testing • RepRap printing protocol: MOST• Lessons learned • MOST RepRap Build • MOST Prusa Build • MOST HS RepRap build • RepRap Print Server
|Tandem Build MOST Delta Navigation|
|Green indicate workshop tasks|
|Soldering and tinning|
|Assembling hot end|
|Drilling Pilot Holes|
|Person 1||Person 2|
|Tie Rods and Pulleys||Epoxying Magnets|
|Motor End Assembly||Idler End Assembly|
|Extruder Drive||Mount Bases|
- Clean the idler ends with a sharp knife, removing any protrusions from the faces in the interior of the idler box. Use an M8 drill bit or an M3 threaded rod to ream all of the holes. Clear all protrusions from the linking board mount tabs.
- Repeat with remaining two idler ends.
- The following steps are identical to those performed with the motor end assembly; refer to that page for details and pictures.
- If linking boards (240mm x 42mm x 12mm) do not have pilot holes drilled in them, first mark one long edge as the bottom then use the supplied templates to mark the position of the pilot holes and drill them with a 1.5mm (1/16”) drill bit. Do not drill all the way through the board.
- With the idler end laying on the table, flanges down, position a linking board so that the pilot holes align with the holes in one of the tabs. The board and idler end must be flat against the table and the board must be firmly against the stop on the idler end. Start four #6 x 3/4” sheet metal screws into the tab and linking board but do not tighten until all of the screws are started and the position of the board is checked – it must be firmly against the stop on the idler mount. Once in position, tighten the screws. (Two screws per tab are probably sufficient, but maximum rigidity and longer maintenance intervals can be assured by using all four screws in each tab.)
- Repeat with another linking board on the other side of the idler end.
- Continue with remaining linking board and other two idler ends. When complete, the idler ends should form the apexes of an equilateral triangle and the whole assembly should lie flat on the table top, flanges down.
- assembled limit switches into the pocket located on the inside face of one of the idler ends. The switch's tab should be positioned so that it is nearest the idler shaft. Affix the limit switch to the idler end with the two M2 screws. Repeat with the remaining two idler ends.
- Set the idler end assembly aside.