Gears playing clickety jam running flexibles? It's not a setup issue. It's a feed rate issue. Think much hotter, maybe even beyond your manufacturer recommended temp. 220 is rookie numbers in this fast direct drive biz. In the big leagues you gotta go much hotter. I cranked my sainsmart and yoyi up 5° every time they failed. I'm getting excellent prints at 250 and absolutely NO jamming. Will post pics when done but I think this is it gents.
OK buddy, seems I'm making progress... wierdness ensues. So I know that TPU traditionally prints better slower so after many fails due to assorted tweaks I've been constantly knocking the speed back down to 35mm/s thinking thats ground zero until everything is working that should be my datem point. Then I'd make changes and the whole merry go round started again. I've also been looking like you at going higher temp thinking it would help with lowering resistance in the meltzone. The trouble with chasong your tail is you tend to end up so far from home that it's all a bit of a slog back. Anyway, long story short I hit on leaving all of my slic3r/Simplify3d/Cura profiles to 1 side on starting afresh with a bare-bones PLA single profile clean setup in Prusa Slic3r. No messing I started a print and thought I'd change 1 thing at a time so printed the first print as if it were PLA. The print failed 4 layers up when the part cooling fan kicked it because it was set to 100% (and is upgraded anyway so super blowy). Sliced once more with no fan apart from 30% on bridging and BOOM. it's all good. The part printed @ 80mm/s, no retraction, no fan and @ 220 degrees which is right at the low end of the recomended temps for that particular filament. Print came out beautiful stupid fast with no stringing. Words of caution, I've repeated this with the 4 firmer TPU filaments I own, now I need to take it to the spaghetti ones. Fingers crossed. I actually noticed the stepper was warmer with slow small movements than it is going top speed so maybe heat creep from the stepper caused some of the issues. No oiling of TPU so far so lets see how things go.
So I had it up and running fine all week. Then had decided to upgrade my fan from the 4010 that came stock with my ender 3 to a 5015 that's intended to fit my hemera mounting setup . Two prints went fine but after that I cant even get a first layer down with fan completely off. I'm again stumped why this is happening. One difference I see is when I pull the material out of the extruder the bulb that causes the jam seems much smaller.
i dont get it , if so many ppl are having trouble with flexibles (myself inc) and we're printing slow , how do all these printer review ppl say there printing flexibles at insane speeds. not that 60mms is insane . And not one of them mentions how they accomplished it. jsut suckin the e3d sack for perks i guess
It may be that you have faulty gears, please contact support@e3d-online.com for help getting your system up and running.
