Problem with filament feeding into E3D with Wade Extruder

I got a E3D to run on my DIYTechShop i3A, and am having some problems. I get frequently where the filament will not feed, but gets bunched up on the input hole. If I pull it out, I can push the filament through the nozzle manually, but when it runs sometimes this happens. Sometimes at the beginning, sometimes 1hr through. I am using 1.75 ToyBuilderLabs ABS at 255C. Any suggestions?

insert a fish mouthed piece of tubing, about 1/8th" in dia. down the hole. It should bottom on the cone shaped entrance on the E3D. The fishmouthed end should fit in between the bearing and the drive tightly but not touching. make sure the tube is secure so it doesn't move up into the moving parts on retraction. Since the filament has low column strength this gives it support. Now when it strips the filament w/o buckling you'll have to figure out the true cause

Edited 1 time(s). Last edit at 05/31/2014 01:41PM by Bill Clark.

here is a pic of mine. Better get it quick before takerbot patents it

Edited 1 time(s). Last edit at 05/31/2014 01:54PM by Bill Clark.

Quote
Bill Clark
here is a pic of mine. Better get it quick before takerbot patents it

Where did you get the tube material?

at my local hobby shop. K&S is the brand. 1/8"x .015"wall. K&S stock # is 127. You could probably order it online. Ebay would surely have something. An old telescoping antenna could be hacked also

I went to the hobby store and found the same copper tubing. I fit it and it seems to be doing the job. Thanks for the idea.

no problem