Questions tagged [post-processing]
Use this tag for questions about post processing, i.e. additional methods and processes after a print has been completed.
57
questions
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1answer
19 views
Metal sintering layer-by-layer with DLP
As of current technological advancements, there exists Metal 3D printers that make use of Digital Light Processing (DLP) projector to 3D print metal objects. These printers use a mixture of metal ...
0
votes
1answer
31 views
Making a 3D printed surface easily cleanable
I want to FDM 3D-print an object, and be able to effectively clean the surface with standard kitchen cleaning solutions. While the 3D-printed object would not come in direct contact with food, it ...
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0answers
43 views
What is the best method to use to glue ABS parts together?
I am looking to do a print job where I have a large quantity of different pieces that will need to be glued together to make the finished product.
From what I have gathered looking around online, ...
1
vote
0answers
24 views
Why is a mold required in isostatic pressing after performing Sintering
After an a object is formed through direct laser sintering, as a post-processing procedure the object is sent for hot-isostatic pressing, In hot isostatic pressing the sintered object is placed in a ...
1
vote
1answer
123 views
How to smooth PLA Prints without using sandpaper, solvents or paint
I need to smooth some prints with silk PLA filament.
The silk PLA has a nice translucent effect but unfortunately if sanded results in an horrible matte finish regardless the sandpaper grade (I have ...
3
votes
0answers
146 views
Methylated spirits or turpentine to clean resin printer?
I'm new to 3D printing and have bought a resin printer.
Cleaning with Isopropol Alcohol seems to be the rage, however I think this is unaware of cost savings. It appears methylated spirits is ok and ...
1
vote
2answers
60 views
What glues to use for PETG?
In analogy to: "What glues for PLA?", what are the best glues to use for PETG?
I mostly print in PETG and have occasional failed prints which I usually reprint. But what if I'd like to repair a print ...
0
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2answers
287 views
Will Mod Podge work with PLA prints?
Looking for something to smooth out a PLA print. Would Mod Podge be a good solution? Will it stick?
3
votes
2answers
140 views
How do I remove a 3D print stuck to the glass build plate
I printed a model and now I can't remove it.
I have been chiselling away with a putty knife and made little or no progress. I even heated the bed up to 70 °C. That really didn't seem to ...
3
votes
1answer
171 views
overlaying epoxy resin on PLA
I've been experimenting with FDM 3D printers and PLA for about a year now.
I'm at the point where I'd like to produce something considerably stronger than PLA, and was wondering if there is a faux-pas ...
3
votes
3answers
76 views
Painting Text on Model
For a model that has raised text on it, how do go about painting the very top layer of text, to make it stand out from the background? Lets say I printed the whole model the same color, what type of ...
4
votes
1answer
87 views
Would PC be considered food-safe in this setup?
I have one 3D printer with Makerbot mk10 extruder and I would like to print my custom cup for tea or coffee from PC.
Other than that, I came across idea that FDM printer will always leave small holes ...
0
votes
1answer
126 views
Sealant to increase Water-Resistance of SLS print
We are attempting to print some single-use prototypes using an SLS printer. The parts must be somewhat water-resistant for short-term usage, but do not have to been waterproof entirely.
According to ...
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1answer
220 views
Nail polish remover that won't dissolve ABS?
In Finishing sunken text in 3D prints, I found that nail polish works great for filling sunken lettering in 3D-printed parts, but the procedure for using it requires removing the excess from the non-...
asked Sep 20 '19 at 2:17
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3
votes
2answers
113 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 ...
asked Aug 26 '19 at 16:57
R.. GitHub STOP HELPING ICE
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2
votes
1answer
34 views
What kind of paint and varnish can be used with ABS?
I know that acrylic paint, the same kind that is used to paint miniature figurines, works best for PLA. Does it works on ABS pieces as well? Can I also use the same kind of varnish that is used for ...
3
votes
1answer
80 views
What alternatives are there to sanding resin parts with fine details?
I have some transparent resin parts printed with a polyjet printer. Where the support contacted the part it has a matte finish. The recommended finishing technique for these parts is to sand them with ...
2
votes
2answers
182 views
Anyone tried Varathane water-based Wood Stain on Hatchbox Wood PLA?
I printed parts for a Harry Potter wand with HatchBox Wood PLA, now I want to apply stain. I intended to try MinWax PolyShades wood stain, then noticed Varathane water-based wood stain is available at ...
2
votes
2answers
59 views
Unbonding Hot Glue
I made a print that involves joining two halves together to create the full model. I decided to use hot glue to bond the halves and on one model, the parts came together slightly skewed. Is there any ...
1
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1answer
376 views
Can I use Araldite to stick PLA to metal frame?
I have a PLA base, that the MOSFETs are sitting on. I don't want to drill through the base of the printer, I was thinking of using Araldite to stick the PLA base to the metal frame. The PLA base will ...
1
vote
1answer
83 views
Sealing PLA & oil-based art supplies?
I will be printing an item that's usually made out of resin, but my version will be made out of PLA. Here are some questions I have:
Usually, people seal the resin with brands such as Testor's, ...
6
votes
1answer
785 views
Sandable primer suitable for PLA?
What kind of primer should I be using for my PLA prints?
I want to be able to sand the object after applying the primer for a smooth finish before painting.
Would something like this work?
https://...
3
votes
2answers
3k views
How to remove exess filament from bed after removing model
Recently got an Anycubic I3 Mega Printer and I've been playing with what it can do, but after a model is done it leaves residue on the build plate behind that is bugging me. Do I NEED to remove it? If ...
2
votes
1answer
568 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 (18ā20 cm)^3, I'd have ...
1
vote
2answers
370 views
Silicone spray as a release agent?
I've just printed my very first part and it did not want to come loose from the build plate, it fact, it just broke instead.
I can heat the bed up again and work it off, but I wondered if a release ...
1
vote
1answer
876 views
How to attach a metal bearing to a print [closed]
I have a bunch of ball bearings (608 2RS) that I'm planning on using in a project with printed parts. But I'm not sure how to attach and secure them properly.
How is this done usually?
1
vote
1answer
248 views
How to paint ABS to look like wood [closed]
I have a piece printed in white ABS, which is a half-scale replica of an unvarnished oak sculpture. After sanding off the worst of the layer lines, I'd like to paint it to get a nice wood finish. I ...
10
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5answers
234 views
Secure disposal of 3D prints
The company I work for is protective of IP and has security procedures for disposing of anything that could be stolen for industrial espionage. Paper gets shredded and sent to trusted recycling ...
13
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2answers
30k views
What glues for PLA?
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
264 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
632 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
4answers
638 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
118 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
145 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
2k 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
522 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
1k 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
822 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
231 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
485 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
2k 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
548 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 ...
11
votes
5answers
1k views
The work is 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
684 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
4k 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
296 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 ...
14
votes
5answers
6k 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
2k 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
966 views
Methods for smoothing 3D objects [closed]
How do I smooth 3D printed objects? What is the best / common method to do this?
17
votes
5answers
11k 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 ...
