Questions tagged [post-processing]

Use this tag for questions about post processing, i.e. additional methods and processes after a print has been completed.

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22
votes
4answers
57k views

What glues for bonding printed PLA to injection-molded plastic?

I will be creating a small tube styled piece to use as a junction between two pieces of plastic. The idea is to reattach the two pieces and provide strength so they don't break apart again. I plan on ...
55
votes
9answers
91k views

How do I give 3D-printed parts in PLA a shiny smooth finish?

The surfaces of my printed parts using PLA plastic look rough and uneven. Would changing filament to a better one make any difference? If not, what kind of methods can I use to achieve a smoother ...
6
votes
2answers
3k views

Is Tetrahydrofuran viable for dissolving PLA and sticking PLA objects together?

According to Wikipedia, Tetrahydrofuran dissolves PLA. It also apparently dissolves PET. THF is considered a relatively nontoxic solvent, with the median lethal dose (LD50) comparable to that for ...
3
votes
2answers
716 views

Finishing sunken text in 3D prints

On several occasions I've wanted lettering/numbering printed as part of a design, but with the ability to make it stand out more effectively in the printed object without having to do detailed manual ...
6
votes
3answers
8k views

What is the best way to connect 3D printed parts? [closed]

I want to print a model of an animal cell. What I have so far: I managed to use different colors to print out the different parts of the cell. My question is: what is the best way to connect plastic ...
20
votes
3answers
5k views

Are there any ways to make a 3D print transparent?

I am aware of several "clear" filaments for a ABS or PLA printer. They, however, have a cloudy or frosted glass appearance. I do not believe this is possible to eliminate but I believe it can be ...
5
votes
3answers
3k views

What glues to use for PETG?

In analogy to: What glues for bonding printed PLA to injection-molded plastic?, what are the best glues to use for PETG? I mostly print in PETG and have occasional failed prints which I usually ...
5
votes
3answers
8k views

How to remove a PLA print stuck to a BuildTak sheet

BuildTak is great because the printed plastic really sticks to it, it pretty much solved all the problems I had with prints detaching from the buildplate during printing. However, it does sometimes ...
5
votes
6answers
281 views

How can you both reliably print and remove your item, without breaking it when detaching it?

I have had problems with items sticking on the build plate, especially when they were big (as they didn't stick well, they corners warped -> all kind of problems). I also wanted to upgrade my printer ...
3
votes
2answers
652 views

Post processing FDM for strength

I'm looking for a post processing method for increasing the functional strength of a 3d printed part originally made by FDM. I've tried printing my part with solid infill but the layer separation is ...
3
votes
1answer
1k views

How could I print a large sphere-like object?

I have a STL file with a rather large roughly-spherical object. I'd like to 3D print it to be fairly large, and hollow inside. Since the printer I'd be using has a max size of (18–20 cm)^3, I'd have ...
2
votes
1answer
932 views

Curated resin size shrink (and methods to reduce it)

I've recently purchased an Elegoo Mars Pro 3D printer. I've read about that percentage of resin shapes going smaller and I understand that. But are slicers (or software which help with the joints) ...
1
vote
2answers
4k views

SLA resin post-processing: gluing parts together

I've recently purchased an Elegoo Mars Pro 3d printer, and I was wondering when printing large pieces that need to be printed in different steps: is there some kind of post-processing to make it more ...
0
votes
1answer
804 views

Clear coating resin 3D prints

I'm looking to put a UV-blocking clear coating on some of my resin 3D prints. I've tried krylon UV-Resistant Clear Coating but it seemed to react with my print making it softer and easy to break. I'm ...