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| {{MachineInfoBox
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| |machine name=Plastic Shredder
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| |image=Plastic Shredder.jpg
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| |synonyms=DE: Kunststoffschredder, Plastikschredder,<br>Kunststoffschneidmühle, Plastikschneidmühle
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| |type=[[Precious Plastic]] recycling machine
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| |material=''[[plastics]]''
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| |location=[[Metal Workshop|metal workshop]]
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| |access=''once completed:'' upon [[Plastic Shredder Introduction|personal introduction]]
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| |status=under construction
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| |firmware=
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| |software=
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| |manual=[https://preciousplastic.com/en/videos/build/shredder.html preciousplastic.com] (build instructions)
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| |tutors=
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| |used with=
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| |similar=
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| }}
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| ''This machine is still under construction, but over time the page should contain more and more information!''
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| 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. | | 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. |
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| We should remember to take some photos with each step, so that we can put together a nice [https://davehakkens.nl/community/forums/topic/shredder-in-austria-vienna/ build log like this one] in the end!
| | <br clear="all" /> |
| | | <!-- NOTE: The following block "imports" content from separate pages - please don't change the code! To edit the actual information, please go back and click "edit" next to the section headline you are interested in :-) --> |
| == Materials ==
| | {{#ask: |
| [[User:Armin|Armin]] got the laser cut parts and two [https://www.conrad.at/de/flanschlager-htb-grauguss-ucfl-204-bohrungs-o-20-mm-lochabstand-90-mm-197022.html flange bearings]; they are in a box in the [[Metal Workshop|metal workshop]].
| | [[MachineType::Plastic Shredder]] |
| | | |order=ascending |
| [[Lukas]] contributed a piece of 27 mm ''(Schlüsselweite)'' [https://www.ebay.de/itm/Sechskant-Automatenstahl-SW-27-mm-Lange-wahlbar-11SMnPB30/111079075160 hexagonal steel].
| | |format=embedded |
| | | |embedonly=yes |
| The '''motor''' we are going to use was supplied by the CoMakingSpace and [[Johannes]] ordered a suitable gearbox:
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| * 3 kW, approx. 1500 rpm ''Drehstrom-Asynchron-Motor''
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| * gearbox: ??
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| * switches:
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| ** emergency stop: TBD, should be 24 V (similar to the one at the [[CNC Router|CNC router]])
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| ** ''Motorschutzschalter'': TBD
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| ** ''Wahlschalter rechts/links'' (direction selector?): TBD
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| ** hopper cover safety switch (should stop motor when open): TBD
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| 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.
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| Other materials include [[Threaded Rods|threaded rods]] and other [[Metal Parts|metal parts]] that we should already have at the Space.
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| == Tasks ==
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| 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 [[User:NitramLegov|Martin]] if you want this to be done.
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| {| class="wikitable"
| | [[Category:Precious Plastic]] |
| |-
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| !Number !! Relevant Part !! Task !! Status !! Responsible !! possible tools
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| |-
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| | 1 || Shredder || Buy lasercutted parts for the shredder itself || Done || [[User:Armin|Armin]] || -
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| |-
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| | 2 || Shredder || Buy the hexagonal Steel || Done || {{£}} || -
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| |-
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| | 3 || Shredder || Adjust the hexagonal steel || Done || [[User:Johannes|Johannes]], [[User:Armin|Armin]] || [[Metal Lathe]]
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| |-
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| | 4 || Shredder || Assemble the Shredder || Done || [[User:Flor|Flor]] || -
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| |-
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| | 4.1 || Shredder || sharpen the blades || mostly(?) done || [[User:Flor|Flor]], [[User:Armin|Armin]] || [[Bench Grinder|bench grinder]]
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| |-
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| | 4.2 || Shredder || harden the blades || not started || {{HelpNeeded}} || [[User:Lmnl99|Luca]]'s & Chris' furnace?!
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| |-
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| | 5 || Shredder || weld the assembled shredder parts together || mostly done - ''Lochblech'' holder is missing! ||[[User:Luzian|Luzian]] || [[Welding Transformer]]
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| |-
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| | 6 || Shredder || make a hand crank for first tests || Done || || -
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| |-
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| | 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]], {{HelpNeeded}} || gear puller (can hopefully be borrowed), [[Metal Lathe|metal lathe]]
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| |-
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| | 8 || Motor || attach the gearbox to the shredder axis || waiting for 7 || {{HelpNeeded}} || [[Metal Lathe|metal lathe]]
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| |-
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| | 9 || Motor || switches - select & install an emergency stop, direction selector and a ''Motorschutzschalter''|| waiting for 8 || [[User:Johannes|Johannes]], {{HelpNeeded}} || -
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| | 10 || Framework || design the framework || exchanged some ideas (depends on 7) || [[User:Armin|Armin]], {{HelpNeeded}} || -
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| | 11 || Framework || buy the needed parts || waiting for 10 || {{HelpNeeded}} || -
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| | 12 || Framework || Assemble the framework || waiting for 11 || {{HelpNeeded}} || [[Welding Transformer]]
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| |-
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| | 13 || Hopper || Decide on the Material || Done (all metal, window could be added later) || - || -
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| | 14 || Hopper || Assemble the hopper || Done || [[User:Flor|Flor]] || [[Welding Transformer]]
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| |-
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| | 15 || Hopper || add a clear cover and a safety switch (endstop) that recognizes when the cover is open || not started || {{HelpNeeded}} || -
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| | 16 || Overall || put it all together || waiting for 9 and 12 || {{HelpNeeded}} || -
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| | 17 || Overall || security check, define the [[Plastic Shredder Introduction|introduction]] || waiting for 16 || at least 1 [[manager]], {{HelpNeeded}} || -
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| |}
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