3-D printing

[Nifty-Chicken]

PETG

I finally printed with PETG for the first time a few weeks ago for something that I needed to be strong outside in the heat. It was easier to print than I was expecting.

using ABS filament

I have a 7 year-old roll of ABS still in the shrink-wrap. I haven't given it a try... in large-part because I didn't really have a printer that would support it (Ender 3's)... but also because of the fumes and haven't really had a huge need to attempt the challenge.

 

[azurbanclucker]

I finally printed with PETG for the first time a few weeks ago for something that I needed to be strong outside in the heat. It was easier to print than I was expecting.


I have a 7 year-old roll of ABS still in the shrink-wrap. I haven't given it a try... in large-part because I didn't really have a printer that would support it (Ender 3's)... but also because of the fumes and haven't really had a huge need to attempt the challenge.

I made a sunglasses holder for wifey's EV6 using ABS. Needed something that would survive in a car in az in the summer heat and PLA/PETG were both iffy. Took the printer outside for it Prints pretty easily, but def recommend an enclosure.

Haven't used it since

 

[Nifty-Chicken]

Ya, it's amazing how quickly PLA will deform in an even modestly hot car!

I was hoping PETG was a lot better than PLA, but it's not by much:

Material	Glass Transition Temperature (°C)

ABS

105

PETG

80

PLA

60–65

 

[Toad9000]

Ya, it's amazing how quickly PLA will deform in an even modestly hot car!

I was hoping PETG was a lot better than PLA, but it's not by much:

Material	Glass Transition Temperature (°C)

ABS

105

PETG

80

PLA

60–65

I find PETG tends not to be worth the trouble. Its a lot more difficult to work with and not much better than PLA/PLA+ for most applications. It also has much worse toughness/impact resistance. Its only really handy if you want to print something food safe. I upgraded my CR10 with a hardened steel nozzle, all metal hot end, as well as a steel extruder gear. Then I reflashed my firmware to raise my maximum allowable hot end temp, and now I can print with carbon fiber filled nylon. Its still a major pain in the butt to print with, even more so than PETG. But at least at the end of all the trouble I end up with a seriously heavy duty print. Between that and PLA+, pretty much all my needs are covered for home use.

If you're somewhat technically inclined, its a challenging but very rewarding project to take on getting a consumer grade printer to work with industrial grade materials like that.

 

[Nifty-Chicken]

I just saw this and decided to pull the trigger to give a roll a try:

 

[fat brown hen]

Recently, I was doing a print. When I took the print off the build plate, I noticed that on the backside there was a skirt from a previous print that was embedded in it. I forgot to remove it prior to doing the new print. It was clearly noticeable, as it was a different color. I could not get it out. It was as if it bonded with the new print because it printed right over the old skirt.

Then, I had what I call a “Monolith Moment.”

View attachment 4084515

Lay down text first in one color at the thinnest possible thickness, then lay down a different color page on top of it. Both colors will bond together, creating writing on a print that is both legible and smooth.

I immediately did some designing and started the experiment.

View attachment 4084491

This is the text I laid down. It’s my grandmother‘s goulash recipe. I then printed a page on top of it at 0.6 mm thick. After the print was done I let it cool and then I peeled it off the build plate.

This was the end result.

View attachment 4084498

My experiment was a success.

Long time listener, first time caller (sorry to drop in randomly) -- I thought your idea was fabulous and tried to repeat it, but I can't get the first layer of text to stick to the build plate. I'm kinda new to all this; did you have to do anything special to make it stick?

I also plan to try your goulash recipe, hopefully I will have more success with that

 

[jnicholes]

Long time listener, first time caller (sorry to drop in randomly) -- I thought your idea was fabulous and tried to repeat it, but I can't get the first layer of text to stick to the build plate. I'm kinda new to all this; did you have to do anything special to make it stick?

I also plan to try your goulash recipe, hopefully I will have more success with that

Try using a 3-D printer glue stick to add some glue to your print bed. That should help help it adhere.

You’re welcome to try the goulash recipe, it’s my grandmother’s, and I’m sure she’ll be happy if somebody else was trying it.

If you do make it, let me know how it tastes.

ETA: I did nothing special, I guess I got lucky.

 

[jnicholes]

OK guys, I need some help with my 3-D printer.

Here’s what happened, I was cleaning the build plate because I noticed stuff was not sticking, probably because I handled it too much last time I was trying to get a print off the plate. I used dawn dish soap to clean the plate. I thoroughly dried it. I did not touch the build plate afterwards. I’m trying to do some prints, but for some reason, they are not sticking to the build plate. I don’t know what’s going on. I don’t know if I did something wrong in the cleaning procedure.

Can someone please help me figure this out?

 

[azurbanclucker]

OK guys, I need some help with my 3-D printer.

Here’s what happened, I was cleaning the build plate because I noticed stuff was not sticking, probably because I handled it too much last time I was trying to get a print off the plate. I used dawn dish soap to clean the plate. I thoroughly dried it. I did not touch the build plate afterwards. I’m trying to do some prints, but for some reason, they are not sticking to the build plate. I don’t know what’s going on. I don’t know if I did something wrong in the cleaning procedure.

Can someone please help me figure this out?

What kind of plate is it?

Generally dish soap and hot water are great. Maybe wipe it down with 99% IPA?

Could it be your filament? Have you tried others?

 

[jnicholes]

What kind of plate is it?

Generally dish soap and hot water are great. Maybe wipe it down with 99% IPA?

Could it be your filament? Have you tried others?

I’m not sure how to tell what kind of build plate it is, all it says on it is Elegoo.

I tried 70% IPA, as it is all I had at the time, it didn’t do much.

I’m trying out a 3-D print of a pirates CSG piece, i’m using glow-in-the-dark PLA filament. Printing as we speak.

I will see if it adheres well enough then I will get back.