CHAMP v2 -no support material!-

grabcad

Just another version of my clamp, CHAMP v1 - no support material!- Hereby my second version of the CHAMP for the ISS. It can be printed totally without support material. The two big under and upper parts will have to be one-off pressed together which creates a strong and rigid connection between each other. (don't forget to mount the two moving parts before pressing, because it is very hard to separate the parts once the are pressed.) The design has a smart feature that will provide a strong clamp force and a stable connection with the handrail. The excenter clamp is designed as to big. When the handrail is clamped the two big arms will catch up this by flexing a bit. As a result that a very tight connection is assured. The design exist from 4 parts, can be printed in 8-9 hour and has a total material usage of approximately 100 cm3 (6,1 inch3) The upper and under clamps have to be printed as solid, otherwise the standing rods are too weak. My model is printed with a Stratasys uPrint with the same print resolution and layer height as the printer in the ISS. It is designed at the last day before the end of this challenge, so there was no time for testing it. The build direction is similar as seen on the photo. possible modifications: -Honeycomb structure in some sections of the parts -reinforce the 2mm wall between the excenter handle and moving clamp. there is some space left and the excenter lock handle can be made a bit smaller to make some space for a thicker wall.- -use of more clamping surface to increase friction in Z-direction It is a perfect system when the excenter lock is touching the handrail when it is locked. Then he would clamp the rail and also block it from rotation. because of the deadline I didn't had a chance to do this.