Most Popular
1500 questions
7
votes
4 answers
How to decide print orientation?
Please Note: This question is not about the design. It's about deciding print orientation after the design.
I have a small, but complex piece which I need to print. Here are two images of different orientation for you:
No matter how I orient it,…
Pᴀᴜʟsᴛᴇʀ2
- 2,545
- 3
- 14
- 41
7
votes
3 answers
Why does jerk have units of mm/s rather than mm/s³?
In 3D printing firmware and slicers, jerk settings are expressed in units if mm/s. This is contrary the physical definition of jerk, which is in units of mm/s³, being the second derivative of speed with respect to time (or the third derivative of…
R.. GitHub STOP HELPING ICE
- 13,404
- 5
- 39
- 79
7
votes
1 answer
Rule of thumb for small type
Is there a good rule of thumb for small type on 3d printed pieces?
Minimum type size?
Good typeface for accurate reproduction?
Rykara
- 505
- 4
- 12
7
votes
7 answers
How to work with PETG? Settings, caveats, etc
We've been doing some printing with PETG filament on Ender 3 Pro printer and the result were awful:
Here are settings we used:
Extruder: 240 °C
Bed: ~70 °C (± 10 °C)
Speed: 80 mm/sec
There are a few types of problems that we had:
Initially…
stopkillinggames.com
- 311
- 2
- 3
- 9
7
votes
2 answers
Should I include fillets on my 3d printed parts?
A fillet is like a rounded corner but on the inside of the corner.
Does it make a difference (structurally) to use fillets on a 3d printed part?
user77232
- 2,478
- 12
- 21
7
votes
1 answer
Overhangs lift up
My printer is exhibiting a problem wherein it's as if the nozzle pulls up on layers. I don't think it used to do this - it seemed like it manifested after I replaced the broken x-carriage with a printed one, but I don't see how that could have…
Erhannis
- 273
- 2
- 5
7
votes
1 answer
How is E value calculated in Slic3r?
I want to know the math behind how Slic3r calculates E values. $E_{value}$ represents amount of filament in mm (unless volumetric extrusion is selected) that has to be fed into the hotend to obtain a road of specific extrusion width.
Consider an…
Rock
- 73
- 1
- 4
7
votes
3 answers
Why have heater blocks on hotends?
I understand that heater blocks act as kind of “low-pass-filter” on the temperature change of the hotend, but why do we need that?
Wouldn’t it be better to have as little metal as possible in order to be able to control temperature changes quickly…
matthias_buehlmann
- 477
- 1
- 5
- 14
7
votes
2 answers
laser is engraving the negative space
I am using LightBurn to laser engrave on wood. I am just trying to print some letters.
In the softwares preview the output looks correct. The black part is where the laser should burn and the red part are traversal/scan lines
When i actually print…
codeNinja
- 183
- 1
- 8
6
votes
2 answers
Material for autoclave-able part
I’m designing a part that will need to be autoclaved—it will be under steam at 121°C for about 15 min per job and I will want it to be able to go through the autoclave repeatedly. I ran a test PLA part through the autoclave and it warped noticeably;…
Alex Szatmary
- 231
- 1
- 2
- 8
6
votes
1 answer
Add a laser module to Reprap Guru Prusa i3
I have a Reprap Guru Prusa i3 v2 3D printer. Here is a link to the 192 MB manual. And here is the link to the resources page for the Reprap Guru. Page 58 of the manual discusses electronics.
I purchased a 5.5 W laser from an online resource…
codeNinja
- 183
- 1
- 8
6
votes
2 answers
Uniform squishy infill
I try to print a stamp with flexible filaments. The problem I encounter is that the filament is flexible, but not soft. This leads to small differences in height to parts of the stamp not working.
One solution would be to add a small 'cushion' to…
E Doe
- 532
- 3
- 10
6
votes
2 answers
Does the X/Y bed orientation of a model affect the print detail quality?
My FDM printer bed moves on the Y-axis and the print head moves on the X-axis and raises on the Z-axis. When printing rectangular objects (a model of Notre Dame in this case), are there print detail quality advantages to aligning the model…
kilomonk
- 61
- 3
6
votes
1 answer
What materials would be appropriate for pool parts (chlorine & UV exposure) using SLA or FDM?
I've got a printer on the way later this year that's supposed to be able to do both FDM and SLA (with the appropriate accessories). I'm interested in printing some parts for swimming pools (the types that generally cost fifty cents to make, but with…
Jeff H.
- 63
- 1
- 4
6
votes
3 answers
Print came out like a wafer
I'm not sure how else to describe it. There's probably a name for this but I just don't know it. But the bottom few layers came out great, but the rest came out kind of like a triscuit. Below are pics of my print and settings. I am using a delta…
user1053263
- 163
- 4