Hi, I was wondering if anyone has a step-by step video, instruction or log on how to build the shredder. Im a teenager and I want to build my own shredder but I am inexperienced on machine building.
Can someone pleas help me?
Thanks a lot 
Nice @calderonm1300ā¦ Iām not sure if anyone else has made videos, but the OG one is from Dave on youtubeā¦ check it hereĀ https://www.youtube.com/watch?v=VFIPXgrk7u0.
There are also vids covering all the other machines
If you are unexperienced builder, the way i would recommend you is to look out for a motor with an reductor already mounted. They are normally more expensive than the motor itself, but it saves you a lot of research about motor specifications and mounting options or converters.
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The shredder itself is connected via a coupling to the reductor.
Best case: a ājaw couplingā that compensates for small missalignment of reductor and shredder-unit
Needs more work to align: a solid (diameter = min. 3-5x shaft diameter) piece of steel with centric (!) holes inside and a bolt on each side to fix the shafts (as shown in the video)
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If you dont have access to a lathe and no sturdy drill press then go and buy (a used) one. Look for Jaw couplers that fit both shaft diameters exactly (!).
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So first find a motor with reductor (see here:Ā http://onearmy.world/community/forums/topic/almost-definitive-guide-on-motors-wip/ ) , then a jaw coupler that fits the reductors shaft and the shaft of the shredder unit.
@anne-barbier thanks for taking time to answer me!! Im an unexperienced builder so I find it hard to understand everything on Daveās video. I find motor work and the rpm reductor the hardest things to do and I think I need help on how to connect those two.
Im still pretty motivated about doing this project no matter how hard for me it is.
@timslab Thanks for answering, I asked for that because I have some doubts on the motor work and how to connect everything. I hope I find Ā someone at my hometown that can help me with that.
itās not that hard, you need the basic tools : welder, angelgrinder, drill press and the usual hand tools.
There is no real step by step thing since most of it is pretty self-explanatory. the only difficult thing is to make sure that the blades run friction free, it can take a day or so.
wiring the motorĀ and the inverter : there is plenty on youtube as well.
making couplings : buy them or have a lathe/cnc. i can recommend the both machines anyway, i canāt think of building those machines without.
sorry but i hope itās still motivating enough 