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 ...
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 ...
5
votes
2answers
1k views

PLA coating for water irrigation 3D printed parts

I was considering printing some pieces for my irrigation system, like tube connectors and such. I am aware that PLA is hydrophilic so I was wondering with what kind of product I could coat the pieces, ...
5
votes
5answers
1k views

Glue for attaching PLA pieces to titanium

I'd like to attach a piece I printed out of PLA to a small titanium rod. I've previously used Superglue (cyanoacrylate) to glue PLA pieces to each other with great success, but the problem is that if ...
2
votes
5answers
123 views

Tips for printing and being able to get of base easily

I'm very new to 3D printing and I've had numerous failed prints. Sometimes, the print is good but while trying to get it off the base I end up bending or breaking the print. My question is: How to I ...
4
votes
2answers
175 views

Cement or another solid pore filler suitable for ABS?

I want to paint my ABS parts. But I foresee a problem that will arise from 0.16mm layer - those layers will be perfectly visible, even with primer. Sanding them wouldn't be a good idea, because walls ...
5
votes
3answers
3k views

How should I go about printing easily removable rafts?

I have had a 3d printer for a while now, and I have a lot of the quality settings dialed in pretty well, but one thing that constantly bugs me is removing the raft from my finished prints. I am using ...
1
vote
1answer
571 views

Which 3D printer should I use to make custom miniatures for a tabletop game?

I would also be curious on how I could get the best results with these printers. I am in a situation where I have cheap access to a: Fortus 250mc, which prints in ABS and has a minimum resolution of ...
5
votes
1answer
2k views

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

The surfaces of my printed parts using ABS plastic look rough and uneven. What methods can I use to achieve a smoother finish for my for 3D-printed objects?
2
votes
4answers
1k views

Is it possible to 3D print sharp objects with high details? And how?

I mean 3D forms like these? In a small scale (height: 1-2 cm, width: 0.5 cm). I want to keep all the form's details. If it is possible, what printer do you advise? How much does it cost to print one ...
1
vote
1answer
244 views

FDM, ABS Post-processing methods

I have built a few parts that have printed 'pins' on them (2mm diameter 1.5 cm length). Due to the orientation that the build requires the pins have to have support material on them. (The part has to ...
3
votes
2answers
651 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 ...
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
1answer
795 views

What kind of colors should I use to paint my PLA prints?

I'd like to paint my prints, which I printed using white PLA, with some colors. I have no idea what type of paint should stick to PLA well. I need paint that will not be soluble in water and will ...
12
votes
5answers
8k views

Prints are now sticking too well to the bed. What to do?

I'm a beginner. I've a Printrbot Play with a heated bed add-on. I'm using it exclusively with PLA. It worked great initially, but then I took the nozzle out and put it back in, and the Z calibration ...
7
votes
1answer
840 views

Bonding PETG to glass

I'm thinking of trying my hand at fabricating microfluidic devices. I'll be using a filament based on PETG (Zortrax's Z-glass filament, which is translucent and resistant to acids and bases). For my ...
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
1answer
516 views

Stone-look surface via painting?

Has anyone tried painting a PLA (or other) print with stone-look spray paints? In particular, how does the result look compared to printing with stone-fill filaments? It looks a lot cheaper, but will ...
17
votes
6answers
11k views

How to remove white marks from PLA

When you cut or break a PLA model (for example to remove support) it often leaves an ugly while mark where the removed piece was connected. Sanding also tend to leave dull white scratches on the ...
9
votes
2answers
4k views

Practical concerns smoothing PLA print with chloroform vapours

One way to give PLA prints a smooth finish is treatment with chloroform vapours (or other solvents, as mentioned in this answer). This method is even featured on Ultimaker website. I would like to try ...
2
votes
2answers
994 views

Methods for smoothing 3D objects [closed]

How do I smooth 3D printed objects? What is the best / common method to do this?
18
votes
6answers
18k views

Drilling 3D-printed plastic

I need to do some post processing of my 3D-printed models that includes adding some holes. For each of PLA, ABS, PETG and other 3D-printing materials: In what ways is drilling a hole in a model made ...
7
votes
1answer
280 views

Maintaining fine details while applying smoothing methods

I've been reading and experimenting with Acetone vapour smoothing on some printed ABS parts. My problem is that I need to selectively smoothen the printed parts which vapor smoothing doesn't allow. In ...
5
votes
2answers
3k views

How to smooth the surface of parts printed with Co-polyester (PET) filament

Are there any techniques for getting a smooth finish for parts printed with co-polyester (PET) filaments? More specifically, I am looking for an alternative that does not roughen the look of the part -...
17
votes
7answers
5k views

What can I use to "sand" my ABS prints?

I have a 3d printer that uses ABS filament. The software I use will generate vertical supports for my objects before printing that can be easily broken off after they have been used during print to ...
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 ...
12
votes
4answers
3k views

How to easily get rid of rafts and support structures?

My printed parts consist rafts, supports and other extraneous filament when printing with ABS or PLA. What are efficient general techniques of removing them?
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 ...
55
votes
9answers
90k 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 ...

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