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Björn Marl
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877 followers
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This is my current solution for a print surface.
I use an aluminum MK 3 heatbed with a magnetic foil glued on top. So far the foil did not loos any of it's magnetism, even though i use it @ up to 110°C. On top of the magnetic foil i use a ferromagnetic foil on which i glued a sheet of ultem.
This combination makes it super simple to remove the printplate and to remove the printed parts from it, regardless how well they stick. In the video the printed ABS sticks pretty good, but it is easy to just peel of the print surface.

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As an alternative to ABS i like GreenTec from Extrudr
https://extrudr.eu/products/copy-of-extrudr-green-tec-white
It has nearly all the positive properties of ABS without the drawbacks.
It is similar in heat resistance and easily machineable, but different to ABS it does not warp and does not need an enclosure for bigger parts. On the downside it can not be smoothed using ABS, but on the upside it will fully biodegrade, much better than PLA.

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Something really satisfying. support that is exactly right and can be removed just by tugging at it.

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New video from my coworker Dimitris.
Lighting and rendering a scene in Cinema 4D made easy
https://www.youtube.com/watch?v=S89EI64aIC0&feature=youtu.be

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Current state of affairs with my project on compressed air cooling
http://b.bonkers.de/?p=392

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It seems it is not only possible, but actually pretty easy to use compressed air for part cooling. The TPU i am currently using quite a lot needs to be cooled after printing if you have small parts. The cone in the image is 40mm high and has a diameter of 2mm at the top. Without part cooling it would be an abstract sculpture, with it is pretty much perfect.
Please excuse the rubbish sound in the video that shows the part cooler in action.
https://youtu.be/Y7CdSyvTTuk
Photo

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Some more news on dual material printing with the DuoCube
With ABS and TPU it is super easy to print rigid objects with tough shells.
http://b.bonkers.de/?p=386

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