mmemetea

"Cheesy" to say the least... ;)

I meant mk8, not mk7... Sorry.

I just uploaded an MK7 version. It should work, please confirm as I don't have any. The only trouble you could run into would be due to some contact between the non-hobbed part and the conical part. Let me know if it's ok. You should reach 150 mm/s without problem (my printer isn't rigid enough to reach this speed in a usable way but I will try for the sake of it).

Printing speed usually 70 mm/s - Retraction 3 mm @ 40 m/s - Works flawlessly for far. The tricky part is really to install the flint correctly.

<p>Still going strong (and with no apparent sign of fatigue)... Actually planning to design a bowden extruder with a spring based on the same principle! Already 3 months use.</p>

<p>Hi EngineerDog!<br><br></p><p>That's a great initiative. I'm personally interested in trying to evaluate the resistance to delamination (adhesion between layers is probably the weakest parts of any 3D printed part in FDM). I can also provide you some papers that I've been gathering (you're not alone, but I agree that research doesn't seem much available to public. Some big business issues here maybe...). If you're interested send me an email at mmemetea (a) gmail.com:</p><p>Some of the interesting papers title:<br>* Mechanical Properties of Components Fabricated with Open-Source 3-D Printers Under Realistic Environmental Conditions<br>* Advanced Modelling and Infilling Algorithms for 3D Printing</p><div><div><div><p>&nbsp;* Build-to-Last: Strength to Weight 3D Printed Objects</p><p>* Chopper: Partitioning Models into 3D-Printable Parts</p> <div> <div> <div> <p>&nbsp;* Stress Relief: Improving Structural Strength of 3D Printable Objects<br></p> <div> <div> <div> <p>&nbsp;* Clever Support: Efficient Support Structure Generation for Digital Fabrication (This one seems to have made into meshmixer!)<br>Cheers,</p><p><br></p><p>Michaël.<br><br></p> </div> </div> </div> </div> </div> </div> </div> </div> </div>