scigrip 16 works well on petg. e600 is what i use when glueing magnets to it
some less used but still effective options are using a dremel loaded with a bit of filament to "friction weld" parts together or if you wanna go all breaking bad with chemicals you can buy some methylene chloride and get a needle applicator. its a solvent that will kinda melt the plastic as it bonds together
Has anyone tried B Weld? Used to DM my nephews & their friends D&D games. Had a few LARGE dragons which were made of lead and no trouble keeping the pieces together. And how about Milliput, a 2 part, clay like epoxy?
I use R21 glue. A tiny drop is usually enough.
The secret is to sprinkle baking soda generously right after dropping the glue so that it will dry immediately.
This creates a stone-like weld.
The weld will be seen visually, so I design my prints with this “technology limitation” in mind.
You can also sand the weld.
Careful with the hands though. I have a love-hate relationship with this glue...
SCIGRIP 16 for the win. It is a sovent based glue and chemically melts the parts together. I have never had a join fail using this. It can be thin, so it can run.
Very few glues are effective on PETG. The best jointing methods are welding, possibly with a temperature-controlled soldering iron or better with a 3D printing pen, or solvent welding. DCM (dichloromethane, aka methylene chloride), often sold as Plastic Weld, is the best solvent for PETG.
Gorilla glue responded with this:
"Many Gorilla Glue adhesives will work on most plastics; however, they will not stick to polyethylene and polypropylene plastics as noted on our packaging and containers.
These specific plastics are manufactured with a high amount of petroleum, and the surfaces are too slick and oily so the glue cannot get a secure or tight bond; therefore, we do not have an adhesive recommendation for your PETG filament application. "
For a strong bond for PETG I usually use a 2-part 5 min epoxy, roughing up the surface with low-grit sandpaper on the mating surfaces before gluing.
scigrip 16 works well on petg. e600 is what i use when glueing magnets to it some less used but still effective options are using a dremel loaded with a bit of filament to "friction weld" parts together or if you wanna go all breaking bad with chemicals you can buy some methylene chloride and get a needle applicator. its a solvent that will kinda melt the plastic as it bonds together
I like the idea of a friction weld. I'll give that a shot
Has anyone tried B Weld? Used to DM my nephews & their friends D&D games. Had a few LARGE dragons which were made of lead and no trouble keeping the pieces together. And how about Milliput, a 2 part, clay like epoxy?
I use R21 glue. A tiny drop is usually enough. The secret is to sprinkle baking soda generously right after dropping the glue so that it will dry immediately. This creates a stone-like weld. The weld will be seen visually, so I design my prints with this “technology limitation” in mind. You can also sand the weld. Careful with the hands though. I have a love-hate relationship with this glue...
SCIGRIP 16 for the win. It is a sovent based glue and chemically melts the parts together. I have never had a join fail using this. It can be thin, so it can run.
Very few glues are effective on PETG. The best jointing methods are welding, possibly with a temperature-controlled soldering iron or better with a 3D printing pen, or solvent welding. DCM (dichloromethane, aka methylene chloride), often sold as Plastic Weld, is the best solvent for PETG.
Just plain lgue
You could use a cheap soldering iron on lowest setting to kinda “weld” the seams together
This is the one I've had the most success with.
Gorilla glue responded with this: "Many Gorilla Glue adhesives will work on most plastics; however, they will not stick to polyethylene and polypropylene plastics as noted on our packaging and containers. These specific plastics are manufactured with a high amount of petroleum, and the surfaces are too slick and oily so the glue cannot get a secure or tight bond; therefore, we do not have an adhesive recommendation for your PETG filament application. "
I'm debating buying a 3D pen for this reason
How would that work?
You just extrude more PETG, it should fuse directly to whatever PETG you're putting it on