My Eustathios Spider V2 only likes to print Hatchbox PLA.
Do you have any tips on which setting to change in Simplify3D when trying other filaments? If the extruder temp isn’t near 250 degrees it will push the tubing that holds the filament out of the extruder and makes a big pile of filament spaghetti. This is with at least one Bowden clip in place.
Have you double checked you actual temps vs. what the machine thinks its temp is? 250 for anything sounds high! I print PLA at 180-185 and PETG at 230 without a problem on all my pritners.
@Dennis_P I have never printed anything under 200 since I built this. It has always been 220 or higher. I’m not sure how I would check the temperature.
Use a thermocouple, you can buy a meter with one for under $20. FWIW all my E3D hotends read very high with the recommended firmware settings, some are off by as much as 25C.
I use the same M3 threaded barrel style NTC3960 thermistor in my E3D knock off and it is within a couple of degrees. I use the same one in all my printers now for consistency.
I think either the QR, or the BMG would be good. But if you are just pushing out the Bowden tube from the extruder nut trap on the “Hercustruder”… perhaps an upgrade to the nut trap on the extruder is all that’s required. I know someone replaced my nut trap design with a pnuematic fitting adapter that bolts in it’s place. I can’t seem to find the design now. But modeling a new top peice that incorporates a proper 4mm barbed pnuematic fitting on top might be all that’s required.
@bcrazycramer I made a Saint Flint Extruder using a Mk10 drive gear and have been really happy with it. Initially, the gear that I used did not have sharp enough teeth so I didn’t work well. But once I got a new gear, it can really move filament! It was designed by list member +Michael Memeteau and a bunch of the quad rap folks like it. It might not be as nice as a Bondtech, and I have great respect for theBondtech folks, but the SaintFlint extruder is a step above the single sided gear ones.
Yeah, but if the failure happens on the e3d hotend side try cutting the teflon bowden tube back a tiny amount to give it a clean end. And use a bowden fitting clip to keep tension on the fitting once clamped) The clip keeps the fitting from getting slack on the tube, hence keeping the barbs from loosening on the tube.
Glad to know my old Hercustruder design is still winning the battle against the hotend. If its pushing out the fitting on the hotend… Then its not a slipping extruder issue. So the extruder is not the first item to correct. Once we get the tube staying in the hotend, then we tackle the next thing to fail.
Here is my model of the Hercstruder nut trap adapted to 1/8"-BSPP threads to mate up to the threaded E3D Bowden fittings. I can remodel it with M5 or M6 if you need.
EDIT: I print this with 0.1 or 0.15 layer heights, 3 perimeter loops and SLOW. takes about 1/2 hour+/1, No supports.