You cannot make a blanket statement that one is stronger than the other because of the varieties of PLA that exist on the market. However, what we do know is that PETG is more elastic (bends more before it breaks) so if that is important for your application, then PETG is a better choice.
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Yes it is, thatâs why I bought so many rolls, I want to make it my standard filament.
Sofar Iâm not happy with the red and transparent blue.
Did the videos I linked above play to see my situation?
I printed your part and it should be done in a few minutes. I donât think I used your settings though, I think I just hit my PETG preset which wasnât my intension We were babysitting a sick animal all night in some pretty miserable weather. do you remember what your total print time was on this part?
4-4.5h I think? Canât remember exactly
ok canât be too far off, This one was 4hr 10 mins. What does it do? which way does it have to be strong heh? should have asked before I put it on the build plate I suppose.
Edit: never mind I remember the video and just watched it again.
Its a locomotive reverser, used to put trains in forward or reverse. It just has a novelty end on it, itâs intended for show however it needs to be strong enough for when someone inevitably tries using it in a locomotive. Itâs like an off-road muffler do you know whatâs going on a road vehicle LOL I just donât want it to break off in a train.
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Ok well, they sure wonât break it pulling it but I didnât test shearing it. my setup was a little janky and I couldnât reach around the camera and apron on the machine in a straight enough line to give it a really good tug by hand Iâm pretty sure this is strong enough not to break in this direction hand.
It didnât actually break, I know I said it broke in the video but I meant it broke free because the tie slipped off. The first time I tried I pulled it out of the chuck and had to go find it.
one other question came to mind is how have you got the model oriented when you print it?
But depending on the request I get for a model, it might need to be printed several different orientations.
It fits in the locomotive the way I printed it, V notch up
this would be closer to acceptable, its eryone jet black pla at 220/60
this is 3DPC Transparent Blue PETG and i feel its completely unacceptable for a stronger material
same stl just a slightly different cross section.
i have now run the blue through both of my machines with the same outcome, weak junk parts.
printing one in 3DPC red PETG this orientation to test
Thanks for sharing that. I was wondering what that was but didnât want to intrude and ask. My dad was life-long CN employee. His dad was life-long CP. It was the CN logo that grabbed my attention.
JUNK
vs
polymaker polylite pla
can you try to bend yours in the middle, the CN logo is for show, the key section needs the most strength, it gets pushed and pulled that way in use
photo from reddit
itâs funny I saw the logo and didnât want to ask if thatâs what it was in case it wasnât
so it goes in there and gets torqued back and forth? Iâll give it a try and see what it takes to break it. I already crushed it a little in the chuck so it should be interesting.
I can definitely see where the weakest points are in this part. but iâll see what it takes to break it and post back
