Finally a filament beat me  

RE: Finally a filament beat me

I have had 2 spools I absolutely cannot print reliably with, and both were rPET/rPETG. Both would jam up and not extrude reliably. I've had good luck with GreenGate transparent recycled PETG though. Most of the BuildTak-like surfaces I've tried are a disaster with PETG temps, so I wouldn't go there. I wonder if a Garolite bed as used for nylon would work better? 

RE: Finally a filament beat me

I am not familiar with this particular brand of petg but I am having similar problems with petg in general. I was under the impression that petg was famous for not letting go of the plater not for not sticking to it. I have seen pics of prints with the print bed glass still stuck to them. My first few prints with petg were a bit stringgy but the adheision was great. Now I have no stringing but lousy adheision. I am useing a builtak type  sheet on a glass plater. I tried hair spray on the glass side after re leveling the bed and it worked, but it was sure scary breaking the print off the glass. It could be the squish, but the print temp plus the actual filament formula are at play as well. I will try more hair spray for the next print. Maybe 3 coats. Doe PET have the same problems or is it the addition of the glycol to the chemistry that creates the issue. I am curious as I am just venturing into PETG and I have just this week been thinking about PET. I do have one printer with an all metal printhead but she is not in an enclosure yet so I am stuck below 250 degree print temp even still. So I am tryin anything I can print just to learn about them or torture myself, how ever you want to look at it.;-) Thats my two cents. I would try print temp and first layer speed. Low slow and a five degree increase until it either stcks or I reach the temp limits. Go back to the start increase bed temp by five degrees and run the gambit again. You might work a little with extrusion factor and width along with first layer height and speed. Testing filament must be a real trial of patience from this point of view. I wish you luck my friend and I am sure you will eventually ponder the answer. It is just the right combination to make the formula work as chemistry says it should. hot end temp, bed temp, resolution, flow, width, speed. Piece of cake. 😆 

RE: Finally a filament beat me

@bobstro

Looks like we have had the same experience.  I might trying increasing the temperature.  

RE: Finally a filament beat me

Thanks for the warning.

RE: Finally a filament beat me

Posted by: @cwbullet

I have been testing rPETG from Greengate 3D and I cannot get this stuff to stick.  I have tried washing and scrubbing.  I have tried Layerneer.  I tried hair spray.  Tomorrow, I am going to try to squish it even more.  

Anyone had success with Slice Engineering Orange or American Red?  

For such experiments, I have glued a 0.5mm FR4 plate (PCB techn.) to a blank steel sheet and rarely have problems with non-adhering printed parts in this regard. On the contrary, some materials can hardly be removed from the FR4 plate.

RE: Finally a filament beat me

I like the idea of a recycled filament.  This stuff is too tough to stick.