<![CDATA[SoliForum - 3D Printing Community — Got some PP, ABS+PC and flexible to test, now questions.]]> 2018-11-29T21:54:12Z PunBB https://www.soliforum.com/topic/15071/got-some-pp-abspc-and-flexible-to-test-now-questions/ <![CDATA[Re: Got some PP, ABS+PC and flexible to test, now questions.]]> What i understand the MFI is the flowrate at a certain temperature. Higher flow is better i think. You want it to be
fairly quick to extrude.

]]> https://www.soliforum.com/user/6609/ 2018-11-29T21:54:12Z https://www.soliforum.com/post/147684/#p147684 <![CDATA[Re: Got some PP, ABS+PC and flexible to test, now questions.]]> By now I have also tested two different PP. Isplen 094 N2M (homopolymer) and Total 3847R (randompolymer) both with a MFI of 40-45. Isplen was quite hard two extrude in a prober way as it always extruded in an oval shape with contractile vacuoles in it but the warping while printing was ok.

Total 3847R was better in extruding as it hasn't got contractile vacuoles but the shape also isnt really perfect. Printing was ok.

Do you know how much the MFI can affect extruding and printing?

]]> https://www.soliforum.com/user/20192/ 2018-11-27T12:25:59Z https://www.soliforum.com/post/147653/#p147653 <![CDATA[Re: Got some PP, ABS+PC and flexible to test, now questions.]]> I will try again soon, i have rebuilt my filament cooling, to cool all around the filament.

]]> https://www.soliforum.com/user/6609/ 2018-11-27T10:22:34Z https://www.soliforum.com/post/147652/#p147652 <![CDATA[Re: Got some PP, ABS+PC and flexible to test, now questions.]]> AndersE wrote:

First i tried extruding the PP. But it gets oval shape whatever temp/speed or nozzle size i use, should/must it be dried first like PLA?

Hi Anders,
have you tested PP a second time or got any solutions. I have the same Problem of oval shape. I'm using the 3devo Extruder.

Greetings

]]> https://www.soliforum.com/user/20192/ 2018-11-07T10:17:27Z https://www.soliforum.com/post/147289/#p147289 <![CDATA[Re: Got some PP, ABS+PC and flexible to test, now questions.]]> I have now successfully extruded PC+ABS (Lupoy HR5007) (white pellets).

I predried it in oven at 140c for 4-5 hours.

Extrude with my homemade extruder at 240c barrel heater and 250c nozzle heater and
I get very good results, about 60cm a minute and diameter is between 2.48-2.55 ( i don't remember my nozzle diameter)
but i dont care it's around 2.5 as i happily print with it anyway.

Newt i will try with masterbatch colors

]]> https://www.soliforum.com/user/6609/ 2016-07-07T17:21:15Z https://www.soliforum.com/post/124871/#p124871 <![CDATA[Re: Got some PP, ABS+PC and flexible to test, now questions.]]> I once had a material that just would not stick at all - Delrin/Acetal filament.  It made PC look like a warp free material in comparison.  I eventually got it to stick to the bed by printing on a raft of PLA.  It stuck to PLA very well.  I still couldn't finish a print though because it would pull on the PLA so strongly that the raft started pulling apart and lifting up in the middle. (Delrin is 4 times the shrinkage/warping of ABS so you can imagine how hard it is to get to work). 

I would definitely try that with PP though - print on a PLA raft - if you don't have a dual extruder printer then just put a pause in your GCODE (or if you have Simplify3D just tell it to output 2 gcode files, one at height 0.00 to your raft height, then the other starting at raft height to final print height) and swap out filament after it finishes the raft.

Edit: Also, plastic usually sticks well to plastic of it's own kind - just so happens packing tape, the clear kind like you use for shipping things, is PP - so try putting that down like you would blue tape for PLA, and then printing on top of that.

]]> https://www.soliforum.com/user/10612/ 2016-06-30T14:13:34Z https://www.soliforum.com/post/124656/#p124656 <![CDATA[Got some PP, ABS+PC and flexible to test, now questions.]]> I got from a nearby plastic company some small batches to test for extruding and 3d printing.

PP (Total PPC 7642) http://www.totalrefiningchemicals.com/S … C_7642.pdf

TPE (Dryflex 825100? or 895100? can't really read what it says) but i can't find info about it. But i think it is too soft to be useful. I think they use it for gasket moulding or something. If i remember correct he said it was about shore 75.

PC+ABS (Lupoy HR5007) http://www.lgchem.com.tr/products/12122 … 7a_eng.pdf

First i tried extruding the PP. But it gets oval shape whatever temp/speed or nozzle size i use, should/must it be dried first like PLA?

I testprinted the filament (averaging the diameter) and it prints, but warps like ABS. Printing straight on glass does not work at
all. Printing on paperglue (gluestick) does almost work, it sticks a moment then it flips off off the corners.
Tried printing 210c and 225c, same result.
A quick search for PP printing have not got me any useful info.


Any tips?

]]> https://www.soliforum.com/user/6609/ 2016-06-29T17:42:50Z https://www.soliforum.com/post/124630/#p124630