Finally got my thumb out… And made a page on Facebook https://www.facebook.com/preciousplasticaland/ it is in Swedish and English.
Our first project is to build a shredder and a extruder to recycle 3D-prints for Optinova. (The Optinova Group is one of the leading global suppliers of advanced tubing solutions for the global medical device industry)
Will share the development and solutions here on the forum and on our FB page.
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Finally the laser-cut parts arrived!
Big thanks to @katharinaelleke for organizing the the group order!
Thank you @dbougas !
You can do anything as long as you have the will to do it 
I edited the recent post (the one with the image), did not have the time to complete the update erlier.
Thanks a lot for this precious @ashrak pictures and evolution
Hope I can try to do the same…
Waiting your next posts
DiB
@davehakkens
Yeah, I noticed that, and was about to write about it, but it is working now and I edited my post Thank you.
We had some problems with our image uploader @ashrak, should be temp fixed now and properly next week Sorry for that. Nice process topic you have here! love it 
Today I went and got the adapter for the motor, that the engineers from Optinova made. And it fitted perfect (awesome when something fits perfect and without problems on the first try 
)
Now I just need to reassemble the shredder unit, and then I can put the motor, shredder and frame together.
Slowly getting it done.
The frame for the Optinova-shredder is more or less done, some paint and I need to change the bracket on the shredder unit. Now I am waiting for the guys at Optinova to lathe an adapter to the shredder-motor. Will be starting on making the hopper for the shredder.
I was looking at the max bore sizes, and took the ones with 19 and 24mm (L070 & L075) just to discovered they all are 6 & 8mm. So they need to be rebored.
Yeah, the torque rating do not make much sense.
Got the couplings today, and will rebore them and try them.
What size jaw coupling did you buy? The torque ratings don’t make much sense, but I would think you would need at least the L-090 for the shredder, better the L-099.
@fabirihotmail-com
Oh now I see! Thanks, I will need to do that with the Optinova motor, but luckily the guys at the Optinova workshop said they will lathe one for me
I found the jaw coupling on eBay https://www.ebay.com/itm/L-Jaw-Couplings-Complete-With-Element-Insert-Lovejoy-Couplings-L035-L050-150/162579511138?hash=item25da7e7762
mwB5sj68wFzCOfZCzhbs96Q
@Ashrak Wheere did you buy this coupling so cheap? Usually it cost about 30€ each….
The coupling in the photo is to change shaft diameter usually from 19 to 24 that is the most common size for gear reductors, if there is no shaft (male) you put the shredder shaft directly inside the gear reductor hole.
Thank you for the suggestion @fabirihotmail-com .
The jaw coupling I ordered costed just under 40€ for 3 sets, and also they allow for some misalignment.
This coulb be a cheaper and good solution to coupling differen size of shaft, could be 19 to 24 or 24… it cost about 15€
@ivanshtiru
You can find the blueprints for the machines in the download section here on the website, as for the frame, you might have to improvise a little depending on what motor you have.
Как можно получить схемы,или чертежи? Заранее спасибо.
Small update, have ordered the jaw coupling for my shredder and gotten the motor with reducer from Optinova.
The motor is a used one in good condition from Lenze.
The interesting part is that it is only 1kW at 400v 87Hz, but gives 262Nm @ 35rpm.
The engineers say it should work…
Also sketched up the frame with shredder and motor (without electic box, hopper and shelves) during my lunch.
@ashrak
The jaw coupling is best if you can find one the right size. Better to use for the extruder as well if you can. A solid coupling needs to be very precisely aligned or it will cause problems (binding, jamming, flexing, wearing other components)
Yes @jegor-m , I do use them I want to be able to listen to my kids in the future
The motor I am using is a 3-phase 2.2kW with 2820rpm and a 60/1 reducer, so that leaves me with about 47rmp on the shredder. I found these on the scrapyard and it cost me about 30€ I think, need to connect the motor and reducer somehow (think i will be going for the idea Dave used to connect the extruder and motor (first image), and then a jaw coupling for the shredder and reducer (second image) ).
I do not have any plans on making an interchangeable system, because I got a bunch of used motors and reducers.
But if I would find an suitable motor with reducer and a VFD, then I might look into the option on trying a interchangeable system.
And as for the tools, it is for others that are getting started and need to know what to get/buy.
