Plastic Shredder

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Revision as of 14:38, 28 October 2018 by Lukas (talk | contribs) (→‎Tasks: up to date as of 2018-10-25)

MachineInfoBox

Plastic Shredder

Machine-default.png
Type: [[Precious Plastic recycling machine]]
Material: plastics
Location: metal workshop
Access Requirements: Plastic Shredder Introduction<ul><li>The part "recycling machine" of the query was not understood.Results might not be as expected.</li> <!--br--><li>The part "]]" of the query was not understood.Results might not be as expected.</li></ul>
Status: under construction
Manual: preciousplastic.com (build instructions)
Tutors: Lukas
NitramLegov<ul><li>The part "recycling machine" of the query was not understood.Results might not be as expected.</li> <!--br--><li>The part "]]" of the query was not understood.Results might not be as expected.</li></ul>

[[Has caption::Precious Plastic recycling machine| ]] [[MachineType::Precious Plastic recycling machine| ]]


The shredder is the first machine we are building for the Precious Plastic project as all the other machines require small, somewhat uniform pieces of plastic as their raw material.

We should remember to take some photos with each step, so that we can put together a nice build log like this one in the end!

Materials

Armin got the laser cut parts and two flange bearings; they are in a box in the metal workshop.

Lukas contributed a piece of 27 mm (Schlüsselweite) hexagonal steel.

The motor we are going to use was supplied by the CoMakingSpace and Johannes ordered a suitable gearbox.

We have a small selection of perforated metal plate (Lochblech) that could be adapted (cut and perhaps re-drilled) to be the "sieves" determining the particle size that comes out of the shredder.

Other materials include threaded rods and other metal parts that we should already have at the Space.

Tasks

The following tasks should be sufficient in order to assemble the shredder. If everybody is fine with github, we can also move this task list into a project on github. Please contact Martin if you want this to be done.

Number Relevant Part Task Status Responsible possible tools
1 Shredder Buy lasercutted parts for the shredder itself Done Armin -
2 Shredder Buy the hexagonal Steel Done Lukas -
3 Shredder Adjust the hexagonal steel Done Johannes, Armin Metal Lathe
4 Shredder Assemble the Shredder Done Flor -
5 Shredder weld the assembled shredder parts together Done Luzian Welding Transformer
6 Shredder make a hand crank for first tests Done -
7 Motor set up suitable motor - we have a motor (3 kW, 1500 rpm) and ordered a gear box (target speed approx. 70 rpm), they need to be mated not started Johannes, who else would like to help? gear puller (can hopefully be borrowed), metal lathe
8 Motor attach the gearbox to the shredder axis waiting for 7 who else would like to help? metal lathe
9 Motor install an emergency stop and a Motorschutzschalter waiting for 8 Johannes, who else would like to help? -
10 Framework design the framework exchanged some ideas (depends on 7) Armin, who else would like to help? -
11 Framework buy the needed parts waiting for 10 who else would like to help? -
12 Framework Assemble the framework waiting for 11 who else would like to help? Welding Transformer
13 Hopper Decide on the Material Done (all metal, window could be added later) - -
14 Hopper Assemble the hopper Done Flor Welding Transformer
15 Hopper add a clear cover and a safety switch (endstop) that recognizes when the cover is open not started who else would like to help? -
16 Overall put it all together waiting for 9 and 12 who else would like to help? -
17 Overall security check, define the introduction waiting for 16 at least 1 manager, who else would like to help? -