16 hour print on my @Printrbot Simple Metal. Almost max bed size. The original design was made to be hollow so it added quite a bit the the print time with all the extra perimeter that needed to be printed. I probably could have closed it up myself but I really just wanted a nice long print to make a good time lapse. Problem is, it either errored on the time lapse or it is taking forever for the RaPi to process the video.
Anyway, the print is perfect, no stringing and overhangs printed perfectly! Only issue I had was removal. I put a little extra hairspray down (I was afraid of it popping off during the hours of printing) and I needed to use the “Exhumer” (last photo) to pry it off.
I have so much in common. I’m printing a mini candy machine :http://www.thingiverse.com/thing:938799 . There’s a lot of surface area and I’m using a little bit of hair spray on the bed of my Simple Metal. My time lapse took several minutes to render on my Pi. Where’d you get the exhumer?
@Eric_LeFort I had that worry too. I looked around the web to check first. I’m sorry I can’t find the source to assure it will work but I did check. My other worry was heat transfer but I guess I’ll just have to test that.
If anyone is interested…
I put up a timelapse of it printing. Unfortunately, I had the picture quality up too high for the RaPi cam and it ate up the 32 GB SD card I have installed. It stopped taking pictures in the final hour and didn’t put the video together so I had to ssh in and grab the photos from the tmp folder and throw them together myself in Premiere. I figured, why waste almost 9000 photos!
Check it out if you want to…Give it a like if you would be so kind. Feel free to follow. I’ll be putting up more print videos soon and, once I get my xcarve in the mail, i’ll be doing instructional videos for that too.
@Michael_Spano_Jr_Ama Ah interesting. I had thought it was an old revision for the Simple Maker. How is it? Have you had the Alu Extruder V2 to compare it to or just the original iteration?
@Eric_LeFort It looks like the heated bed with Kapton. The surface isn’t powdercoated.
I like the dual gear extruder. Give a massive amount of tork on the filament. It seems to work the ectruder motor a lot less. I have another printer with the Rev 2 alu extruder and the metal UBIS. It prints really well also. The extruder itself is not much different from the Rev 1. It’s got a couple much needed tweaks like the longer arm on the tension arm and the entrance into the hot end is very close to the gear so it is good for flexible filament. The dual gear one is good for it to but I didn’t have much success with flexible filament.
Interesting. I’m not planning on upgrading the extruder for a couple months but I may have to try each. Thanks for the info. You contradicted yourself though. You said the gear extruder allows for more torque which would mean that that the gear on the motor axle is smaller than the gear on the axle that pushes the filament. If you were to print at the same speed as an ungeared extruder, the extruder motor would have to turn faster in the gear head extruder but you said it works the motor less. So is it geared up (less motor strain, more speed) or geared down (more toque)?
let me rephrase. Torque is probably not the best word to use. The way it grips the filament from both sides provides a nice even flow. It seems that somehow this particular set up is much more efficient at pushing the filament into the hot end. I’ve have a couple Version 1 metal UBIS that I couldn’t get to extrude but once I installed this set up it had no problem. The pressure it is able to place on the filament into the hot end is much more consistent. Where I used to have motor overheating issues, I can now run the extruder for days at a time and it only gets slightly warm.
Okay so it’s geared up. Interesting. You should be able to print faster than the Alu Extruder. I guess it would depend on how well the hotend accepts the feed. You should try printing at 100mm/s and see how it works. Worst that would happen would probably be stripping of filament.
I’ve gotten up to 120mm/s with the metal ubis. It is very capable of holding up to those feed rates. With that said, I don’t suggest it unless you are just doing a quick rough print for testing.
Fantastic. Brook just posted that their gonna offer a metal version of the gear head extruder soon so I think I’ll buy the printed one to test before it goes away
