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General discussions. For specific printers / electronics / fabrication methods / softwares, please see other sections.
hotend going crazy and heating up on it's own right away - 14 years ago
bah. so my prusa with sangiunololu is assembled and conecting to pronterface, and the last few days testing the xyz have gone mostly well (it seems to not move the entire length and the software stops it from moving, I don't get it) but as of today when I turn on the machine, the hotend also begins heating. in pronterface the hotend is off int he drop down and I click the off button. I've triedby fyrebug - General
Re: 3d4d Challenge- $100k Prize! - 14 years ago
maybe I'm too jaded but this just seems like an R&D project for makerbot seeing as they're one of the main sponsers. but hey, can't hurt I guess right? I'd be curious to see what the fine print is on design submissions and what happens to them whether or not they win. perhaps that's a good way to snuff as these small startups competiting in their space. offer up some award money, own the desby fyrebug - General
Re: Rack and Pinion for X-Axis - 14 years ago
amazing. as I said on thingiverse I'm very curious to see how this shapes up over extended use but not needing to buy belts is awesome. even if it wears down I'd rather print a new tooth bed than buy belts. for $16 you can print quite a few tooth beds and melt down the old abs into a rubber mold for re-use. I can easily see a different printer design where the motor moves rather than the rack beby fyrebug - General
sanguinololu + replicatorG? getting no response - 14 years ago
sorry if this is the wrong section, I don't see a dedicated sanguinololu sub section. I've got a freshly minted prusa mendel with a sanguinololu 1.3a running sprinter (as it has a 644p) I can make things move with pronterface so I know the board is ok, problem is with repG I get no response. it just timesout. as I'm moving from a cupcake I'd prefer to still be able to have a 3d preview of the mby fyrebug - General
Re: Purpose of PTFE inner sleeves? - 14 years ago
nophead, sorry another question. which did you find works better? the ptfe for slip or simply reaming out the metal hole? it seems like reaming it might not work as well, but would hold up longer. I've never had a ptfe inner sleeve wear out, but I imagine it could over time. at the end of the day it just seems like one less part which is nice, so if it works I'd love to go that route..by fyrebug - Plastic Extruder Working Group
Re: Purpose of PTFE inner sleeves? - 14 years ago
ok that makes much more sense. thanks nophead.by fyrebug - Plastic Extruder Working Group
Re: Purpose of PTFE inner sleeves? - 14 years ago
thanks nophead. I don't understand the draft though. if it gets narrower wouldn't thatforce it to jam up more not less? how does that overcome it? thanksby fyrebug - Plastic Extruder Working Group
Purpose of PTFE inner sleeves? - 14 years ago
I see some hot ends have inner ptfe sleeves/tubes, others don't. for instance makerbot uses it on their mk5,6 I'm just curious what the purpose is. wouldn't a sleeve block some of the heat from reaching the filliment and hurt it from melting? is it an attempt to stop the heat from traveling up the tube? becuase the metal outer tube would tranfer heat upwards anyways no? it just seems like one moby fyrebug - Plastic Extruder Working Group