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Questions tagged [3d-printing]

The process of creating three-dimensional objects out of plastic or other materials using a device similar to a printer.

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How to calculate the adhesion I need to keep a 3D printed bending part straight?

3D printed parts cool down during printing, resulting in thermal contraction which causes a bending moment and separation from the printing bed. The issue is solved by increasing adhesion to the ...
FarO's user avatar
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2 votes
0 answers
483 views

How to design CAD bevel gears from known outside diameter?

I'm working on a problem where I need to design and 3D print bevel gears to fit in the inside of a box and transmit a gear train around the inside corner, as roughly illustrated by the cross section ...
Adam's user avatar
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Stretch part of object in Autocad or 123D Design

I'm quite new to using 3D Drawing programs, except a bit of work in Google's Sketchup. As I'm trying to draw a model that should be 3D printed, and heared that Sketchup is kinda bad practice for this, ...
Roel Balink's user avatar
2 votes
0 answers
172 views

What material for DLP/SLA 3D printer bottom window?

What material is used for the bottom window of 3D printer that the cured resin layer does not stick to and that it is transparent to the uv (365 nm) light? And what material is used for the top plate ...
doker's user avatar
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1 vote
0 answers
170 views

Optimizing fully 3d-printable shaft detent/index mechanism

I am building a vertical-mount deployable tool storage device. Normally, it is in the "locked" position, but when I turn a knob, it becomes unlocked, unfolds, and the tools inside can be ...
Dragongeek's user avatar
1 vote
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41 views

Open 3MF File in another Program With Macro

I made a macro a few months ago to save a .3MF (alternative file format to .STL for 3D printing) which I love, but I'd like Solidworks to Auto-open the 3MF with PrusaSlicer when the file is saved. Is ...
Nathan Eads's user avatar
1 vote
0 answers
669 views

Calculating Z-axis Torque on a 3-D Printer

I recently built a large CoreXY 3D printer and I am wondering if my 4 z-axis stepper motors combined will have enough torque to accelerate the build plate with a heavy 3d print. During the building to ...
Feynman137's user avatar
1 vote
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202 views

What are the limits of small 3D printed gears?

How much tangential force should I expect a 10~20mm pitch diameter/1.5mm gear module 3D printed rack and pinion system to support without breaking nor sliding?
curioso's user avatar
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What is the maximum degrees per step of a stepper motor for a 3D printer?

I am making a reprap rostock (delta style printer) and I am trying to use as many parts I already have as possible. The stepper I have are 7.2 degrees per step. Even with microstepping, would this ...
electricviolin's user avatar
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17 views

How to do maths for total gear ratio to predict 3D printed high torque high reduction planetary mesh generator?

I found a video of a guy lifting wheels and anvils using a 3D printed gearbox, so I've found a mesh generator that can rapidly produce custom gears based on that design. I found a math walkthrough ...
bandybabboon's user avatar
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Method to calculate required gear size and teeth size for a rack system for a certain amount of travel?

high school amateur engineer- and first-time poster- here. I'm making a Nerf automatic springer system, and I want to model it. However, I don't know what size rack and gear system I need. I need 60 ...
Tom Foolery's user avatar
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What would be a good way to connect parts that would be replaced on a training model?

I'm trying to work on a training model for neurosurgery. Residents will be operating on the posterior part of the model, and it needs to be replaced after each training session. While the anterior ...
Bilal Bahadır Akbulut's user avatar
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25 views

SOLIDWORKS: Is there a way to convert a Section View into a new part?

I hope this is the correct place for this question. BLUF: is there a way in SOLIDWORKS to convert a Section View of a part into its own new part; alternatively, which features/tools of SOLIDWORKS ...
John Doe's user avatar
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Can you heat the air in a box to heat plastic inside box?

I am working on a project where I need to heat the air inside a box to heat up a 3d print inside it. As of now, I am using a heat gun to heat up the air. I was wondering two things: How can I add hot ...
user47393's user avatar
0 votes
3 answers
75 views

Ideal way to create internal thread for 3d prints

I created a two piece case for an electronics project. The pieces are joined with M3 screws. The screw enters a 3d printed cylinder. In order for the screw to secure itself, it connects to a nut I ...
user1584421's user avatar
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0 answers
47 views

How to model this object?

I'm trying to make a 3d model of this showerhead holder I did this STL file using cadquery: ...
Labo's user avatar
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Tolerances in the manufacture of mechanical parts (plastic)

It is necessary to make an adapter ring for connecting the smartphone to the microscope eyepiece (turn from ABS on a lathe, or 3D printing). Microscope eyepiece diameter is 33mm. What should be the ...
minto's user avatar
  • 103
0 votes
1 answer
47 views

Stuck Allen bolt in e3d hotend

I was having bed leveling issues, so I wanted to make sure I had my x axis level. I moved the z axis right to the top so it would align itself. But in the process, I must have ripped the cable clean ...
Ageis's user avatar
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1 answer
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How to design a gear decoupling system?

I'd like to convert my stupid door lock into a smart one. I already have a gear for the lock knob. Now I'd like to design a gear decoupling system that will be connected between the knob and the motor ...
Defozo's user avatar
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When should a bolt and hole be tapped at an angle, if ever, from a structural/strength standpoint?

Assuming the head of a bolt makes proper contact with its surface and clamps properly, and tapping an angled hole is not an issue, when would an angled bolt and hole (relative to the primary surface) ...
Nubnubbud's user avatar
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1 answer
74 views

Why sometimes it is very difficult to tighten the screws when threaded inserts are used?

I designed a part using CAD software to combine it with a mechanical component which already has holes on it. The locations are correct as I have the CAD file for that component from the manufacturer. ...
lovedrinking's user avatar
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0 answers
22 views

Building CAD Models for simulations and 3D Printing

Is there a tool that allows you to make changes to models so that they can be used for both 3D printing and static simulations in SolidWorks. For example, I want to have a part printed and to deal ...
belza00's user avatar
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0 answers
16 views

For a given a molten metal (say copper), how do you determine the best material for a 3D printer flatbed? What about circuit board?

Suppose we had a 3D printer that can spew molten metal out of a 0.1mm hot nozzle and that we can control the heat at the last 5mm of the Tungsten hot nozzle's tip. I'm wondering then how would you get ...
SeekingAMathGeekGirlfriend's user avatar
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0 answers
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How are 2D views from a 3D CAD Model stored in STEP-File with Boundary Representation generate for engineers to define details? And why?

I am new in this topic and need some help. There are 3D CAD models (stored as STEP Files with the boundary representation) and some engineers need 2D views of these models for further processing. With ...
user3352632's user avatar
0 votes
0 answers
56 views

Does this CNC machine exist?

About ten years ago I had an idea for a cnc machine that was meant to basically use multiple axis to airbrush finished milled or printed 3d objects. I still have my detail drawings i worked up for it. ...
Benjamin Barney's user avatar
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0 answers
27 views

Is there any cost effective static stress simulation for rapid prototyping (FDM / 3D-printing)?

I've been using the static stress simulation (computed locally) which, until recently, has been free with the Personal licence of Fusion 360. Is there a reasonable alternative? The cost that Autodesk ...
timeSmith's user avatar
  • 101
0 votes
1 answer
41 views

Calculating Gearing Ratio from Constrained Rotational Linear Arc and Horizontally Opposed Rotation

I'm 3D printing an aircraft throttle unit as a POC and am trying to calculate the gearing ratios that are required in order transfer the full range of linear motion into a directionally opposed sensor ...
obious's user avatar
  • 101
0 votes
0 answers
47 views

Recommendation of different materials for 3D printing flexible parts

I am planning to 3D print this part from solidworks. I am hoping to achieve a good level of flexibility with the clasps in this part. Thin circular arc in the Top drawing. and Wider circular arc in ...
WnGatRC456's user avatar
0 votes
0 answers
194 views

How to use mesh as a reference object in Solidworks?

Suppose I want to design some device against a scanned 3D model like eyeglasses. I have imported STL model and drew a reference plane by three points of it. I can ...
Dims's user avatar
  • 203
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1 answer
606 views

3D printer printing out cotton-candy like material after repeated use

I recently purchased a JGMaker Magic 3D printer. It worked well for about 3 months [first picture], but now it is having a lot of trouble. As you can see in the images below, when printing new pieces, ...
Ryan Dehmoubed's user avatar
0 votes
0 answers
97 views

3D Printing Models exported to DWG from STL using 3DS Max have missing surfaces

I want to edit some STL projects with Inventor. According Autodesk documentation, since Inventor is not able to edit mesh models, the most practical way without installing other software in my ...
AndreaF's user avatar
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0 votes
0 answers
56 views

Could 3D printing be done at a distance e.g. by pointing laser?

Could 3D objects be printed from a distance? Say, by pointing a laser at a stone wall? I'm not concerned with whether the requisite technology already exists or would be difficult to build, but ...
Dennis Hackethal's user avatar
0 votes
0 answers
223 views

Cutting lego "+" cross-axle holes, lego knobs?

In short, I'm looking for ways to reasonably precisely machine a "+"-axle hole, Lego compatible sockets, Lego compatible knobs, Lego compatible round peg/axle holes, and other cutouts for Lego-...
Craig Ringer's user avatar
0 votes
1 answer
68 views

Stability of lattice or mesh supports for printing

Support structures like lattice supports, tree supports or wire supports are being widely used in metal printing or FDM as they minimise the wastage of material and power consumption. In addition, ...
Gaurav Sharma's user avatar
0 votes
0 answers
144 views

What is the tolerance on gear pitch?

I'm trying to make a gear to mesh with a motor shaft that I bought online, but it doesn't give any information about the pitch or diameter. When I measured the diameter and pitch of the motor shaft, ...
Ryan's user avatar
  • 255
-1 votes
2 answers
197 views

What does stress analysis of 3D printed parts reveal vs their normal counterparts?

I have seen videos or heard about 3D printed buildings, 3D printed space shuttle parts and more. There seems to be a lot of craze developing around 3D printed manufacturing. I have never heard anyone ...
quantum231's user avatar