Am I the only one that usually prints at around 40mm/s 
do I just print really slow? Always been afraid to go above 60mm/s
1 Like
I print my petg at 35mms 15mms first layer
1 Like
Anyone use a dehydrator? I got a dehydrator, mainly because I left open my petg roll for a few weeks and now it splatters from moisture I’m assuming. Left it in the dehydrator overnight about 15 hours at 140, test printed a cube today and still popping, I’ll run it again for another 12 I guess then I’m gonna pitch it in the bin I suppose if it’s still popping, I don’t particularly like this brand anyhow, it had decent reviews on Amazon, guess I’ll stick with the major well known stuff now
I bumped the temp up to 150 this round
I haven’t opened the profile yet, something about request permission the first time I looked at it.
YOYI 3D Printer Filament,PETG… https://www.amazon.com/dp/B01M3PKKVC?ref=ppx_pop_mob_ap_share
^^ petg I’m using.
I’ll say this, it’s printing pretty nice today after drying out some. I can still hear a few crackles so I’m going to dry it again tonight.
I also cut down the nozzle angle at work a little and polished it. And installed my bigtreetech.
3 Likes
I finally appreciate the impact of good cooling (where appropriate) along with a direct drive extruder. The stock motor works great, but I definitely see the affects of the extra moving mass. Time for gear reduction and a smaller motor!
I would have my new SKR mini motherboard today had amazon not lost it en route to USPS…
1 Like
Got home for lunch break just in time to see this mount finish up
Since drying the filament it has been a completely different experience, I was able to turn the temp up to 235 and turn off fans completely. The color of the print is much more rich then before, I’m hoping to achieve stronger prints this way.
1 Like
Now how do I remove the supports
Ok I got them off, there has got to be a better way, I almost cracked the piece trying and it’s not pretty.
the bottom was not bad, but the one inside the part was a bitch.
1 Like
PETG supports are very hard to remove because the layer to layer adhesion is so good. One setting that is supposed to help is increasing the gap between support and regular layers. If there was a setting(maybe there is) to blast air when printing just above support that should work really well because it reduces layer adhesion.
For simplify3d I have seen people changing the layer temp to be colder so that it doesn’t stick to the supports well.
2 Likes
What are you using for a slicer? I noticed cura’s supports suck huge dicks and they are always so much of a bitch to get off. Since using simplify3d, supports are easy and come right off no matter if I’m using petg or pla.
2 Likes
Oh yeah, Cura supports are awful. Once I finish this upgrade and get things stable I am going to switch to Simplify3D.
1 Like
Cura.
I followed this guys support profile. Printing something now. The main difference I see is his supports were using a flat surface like a skin, where mine had a grid. I’ll let you know how this one comes off.
1 Like
Fun day… I ordered the wrong motor (too thick). 
I’ll use a sideways mount with the BMG style extruder… it will still reduce the moving weight compared to the stock motor.
1 Like
Well my support under the bullseye duct came off ok, not much better then before I made the changes like that video. He claims he uses that same profile on petg in the video but it definitely did not come off easily like he showed removing those pieces from pla
1 Like
Anyone wanna help me? I ran out of filament during a print with my new direct drive setup. I tried to push the filament thru with fresh filament but I ended up clogging my hotend I think. It won’t push thru even heated up to 250 and I also can’t pull it out because it’s so far into the hotend 
1 Like
Which hotend, and which direct drive are you using?
Added another part cooling fan and a 7inch touchscreen (@DerelictRobot hooked me up with the screen). I think this one is done. Now on to the next. This shit is fucking awesome.
5 Likes
All metal hotend.
Did you remove the bowden tube, heat it to 250 or so, then pull directly up?
The problem was that I couldn’t pull up. The filament was completely inside.
I ended up having to remove the entire hot end and boil it to soften the filament and separate the block from the heatsink
1 Like