UM2 fancap for UMO+ 40x40x20 fans + test robot 70mm/s 0.1 190C

neotko · May 9, 2016

Hi, since I got my first umo+ and I printed the first robottest and found our that well, you need to print slow, with a lot of air to get a perfect ultirobot.

So, since that I made a lot of fancaps. And I'm finally almost happy with my lastest um2 for umo fan cap. It uses a symmetrical positioning (since umo has more room for fans this won't work on um2).

I'll do more test since this it's the v4 of the fancap printed on pla, but my first test looks really promising.

This it's a UltimakerRobot_support.stl that comes with legacy cura. Sliced on S3D with 70mm/s for all outlines/infill at 0.1 layer at 190C and 50% infill, 3 perimeters. On my um2 with 1.75mm olsson with the Feeder motor of an umo without gears assembled on a IRobertI with mk7 and using a standard E3D 0.4nozzle.

BTW I wasn't going for 'perfect' robot quality, but 'okish' overhangs at very high speed on a small area. Ofc I never print this fast for final objects, but I do a lot of 50-60mm/s so I wanted to put it to the test since one of the thinks I need more it's to print fastfastfast at a decent looking quality.

In real life it looks quite ok, ofc it doesn't when you get close to it, but it's a quality that can be used. Specially since the overhangs don't look weird at all.

I'm doing some basic test with Flow Design. Isn't the best but I don't have access to fancy airflow software.

I'll publish the fancap as soon I print it on a harder material and fix a bit the air from the right side.

Update 20/05/2016

Design uploaded to youmagine

https://www.youmagine.com/designs/umo-fancap-for-um2-hotend-with-40x40x20-24v-fans

So far ngen + aluminium tape works very nice. But it's been only a day of tests. I think a PLA-tec material that can go 120C would be much better. Also I don't like ngen much but had some free from a colorfabb sample.

Edited May 20, 2016 by Guest