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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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 ...
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53 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 ...
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4answers
743 views
Why are many compliant mechanisms only flexible in the joints?
I've been playing around with 3D printing some compliant mechanisms, mostly to get precise linear motion, and I've noticed that many commercial compliant mechanisms are often designed like this:
...
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0answers
29 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?
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2answers
23 views
Sizing a spring
I am attempting to 3D print my own Quad lock mount and require a spring. I've taken some measurements but don't know how to search for where I can buy more springs. Dimensions:
12mm height, 20mm OD. ...
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2answers
44 views
Polypropylene material characterization
I'm trying to make an evaluation of the available 3D printing options of polypropylene and I'm having difficulties comprehending material characteristics that make PP PP-like.
I realize this sounds a ...
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1answer
43 views
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 ...
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1answer
8 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 ...
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16 views
Could Bidirectional Rotary Damper be good for a 3D printed car steering?
I am designing a car steering and i do not want to use any sort of gears or motor. Would a bidirectional rotary damper work?
I want the steering to feel more real and not too free.
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41 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 ...
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0answers
14 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 ...
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1answer
49 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, ...
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1answer
72 views
Where can I find technical drawings for computer parts?
I want to 3d print a custom computer case, I have the skillset to do so, however, I do not know where to find the technical drawings required. I need drawings for a 280mm Radiator, an ITX Motherboard, ...
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3answers
61 views
Small scale manufacturing [closed]
Some background: I am working for an ed-tech startup and we are hoping to release our first product soon but have been hitting a lot of hurdles with our current manufacturing strategy. We want to ...
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3answers
108 views
Why didn't 3D printing become a standard commodity after around 2012?
Around 2012, you had big news coming out about 3D printing: Things like replacement body parts being produced for about 1% the cost, individuals being able to produce guns off the printer, etc. You ...
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2answers
50 views
Can wet welding be done in mineral oil?
I'm interested in knowing whether or not submerged welding can be done in fluids other than water, specifically mineral oil in this case. The reason I want to know is that I'm looking into designing ...
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1answer
44 views
Help understanding this dimension sheet
I am trying to currently model a few parts for my custom 3D Printer. I have found some flanged lead screw nuts i'm going to use, but i'm having a hard time reading the dimension sheet. Specifically, ...
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1answer
59 views
How do you create a mounting device for a PCB if the PCB's mounting hole positions aren't documented?
I'm trying to create a place for these PCBS to mount onto:
https://www.amazon.com/ELEGOO-Prototype-Soldering-Compatible-Arduino/dp/B072Z7Y19F/ref=pd_cart_vw_crc_1_2/133-3052301-7665733?_encoding=UTF8&...
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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 ...
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1answer
140 views
Is it possible to grayscale a MPO file (3D camera) for a CNC carving
I had/have a 3D camera back in the day, and I gotten a few pictures. I kinda stopped using it since there wasn't anything I could do with the MPO files. However, the camera might gain a new life if I ...
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1answer
106 views
Drilling PCB 3d printer bed
I need a heated surface for a project and was thinking of using one of these PCB heater beds. But I'd need to drill a few holes in it - can I do this without stopping it working? Thanks
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1answer
290 views
Difference between perpendicular and transverse loads?
What is the difference between perpendicular and transverse loads? I saw this on a forum for 3d printing, but I couldn't find any online explanations on what the difference between both measures of ...
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54 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 ...
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0answers
87 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-...
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1answer
27 views
Feasibility of additively manufacturing large metal objects in microgravity/high vacuum (space)
This a somewhat speculative question; I would like to know whether it is feasible to additively manufacture large (>100m) metal objects - from for example aluminum alloys - in a space environment.
...
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1answer
233 views
Could stepper motor lose torque because of overheating?
I have a stepper motor on a 3D printer that heats up very bad because of the heated extruder (it is actually controlling the extruder). When this system starts, it works fine at the beginning, while ...
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2answers
79 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 ...
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1answer
44 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, ...
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1answer
45 views
Cad file for turnstile mechanism/ one-way clutch/ one-way rotation?
I am writing my first 3D cad-file and I want to place into it a turnstile mechanism (a mechanism that allows a fixed axis to rotate only one way, and not in the opposite). Are there cad-templates for ...
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3answers
71 views
Prototype for Injection Molding
Mold for Injection Molding is very expensive and is justified for mass production.
However, at Prototype stage, how we make the same part with less expensive method. I know 3D Printing is a way but ...
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0answers
38 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, ...
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1answer
53 views
What surface to use for 3D printer?
I'm mechanical engineering student who want to construct 3D printer. I have a problem choosing right and cheap material for bed. Bed will be big for a 3D printer, around 700mm x 500mm. I want to print ...
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1answer
30 views
3D printed houses and energy efficiency in Germany
I have just learned that in Germany you wouldn't be able to print a house because of existing rules, especially regarding energy efficiency.
Isn't it possible to print an insulating inlayer to fulfil ...
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1answer
53 views
Dimensions on a STL model
I have an STL file, all I want is to be able to measure dimension from point A to point B on the model in the file. How can I do this? I do have access to Solidworks but don't know if that the best ...
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2answers
1k views
Sealing a rotating shaft in a 3D-printed part
I need to seal a rotating shaft that protrudes through a wall in a 3D-printed enclosure I am designing for a school project. The enclosure is for what will be a small generator that will be used in ...
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1answer
303 views
Are 3d printed gears (ABS) suitable for long term use?
i want to print a worm gear for a robot. This robot will work every day for at least 10 hours. The gears size is about the half of a sheet paper.
I searched the internet for example in industrial use....
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1answer
208 views
Simple and easy Open Source CAD tools for basic 2D and 3D designs [closed]
We are planning to start a basic course on Computer Aided Designs (2D and 2D) for high school kids.
The idea is to help them shape their innovative ideas into something tangible. We shall finally ...
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1answer
50 views
Is it likely that a 3d printer will ever be able to print a copy of itself? [closed]
3d printers are still at a relatively basic stage and currently not capable of printing entire complex machines that require multiple materials. Is it possible that they will ever be capable of ...
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1answer
46 views
General purpose automated assembly?
I've been using 3d printers for prototyping for a long time, and I'll admit it's incredibly convenient to be able to throw together a CAD model, send it to the printer, and have it ready to assemble ...
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2answers
345 views
How to water seal a metal plate into the wall of a plastic water tank?
I have a 10 x 10cm square plate of metal I would like to insert into a hole in the wall of plastic water tank (cube shape), I'm planning on 3D printing the tank itself (only 1-2 litres).
What would ...
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1answer
130 views
Why does the Ultimaker 3D Printer has a Heater + Heater transfer plate (aluminium) + Glass?
Why does the Ultimaker 3D Printer has a Heater + Heater transfer plate (aluminium) + Glass?
I wonder why a glass plate, and if is possible to remove the glass and print directly in the aluminium ...
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0answers
444 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 ...
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1answer
404 views
How to build a pivot linkage for a robot.
I have asked this question in 3DPrinting.stackexchange forum but got no answer answer. Please take a minute to see if you can help.
I am building a simple RWD vehicle using 3d printer parts. See the ...
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1answer
35 views
Thickness of a 3d print general purpose plastic/PLA 230 V ~ isolator?
I'd like to design a minimal thin light switch which holds an illuminant with standardized socket, e.g. E14, E27, and has itself such a socket to be screwed in a support and a switch which will be ...
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3answers
13k views
Is “pitch diameter” the same as the distance between the centers?
I am designing gears in FreeCad, and printing then on a FlashForge Finder. I want to know if the pitch diameter is the same as the distance between the centers of the two gears. Both gears are ...
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3answers
141 views
Can photopolymers from 3D printer be fused together like for thermo plastics?
I'm considering getting a SLA 3D printer, but the big uncertainty is whether I can build large things like propellers by printing them piecewise and fusing them together like you can with ABS and ...
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2answers
294 views
Implementing PID feedback control
I'm a Junior computer engineer working on a project involving a 3d printer. It is a mobile printer with the print head attached to wheels which move along the x,y axis of the surface it is printing on....
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1answer
53 views
Is the construction of a high-speed 3D printer (replicator from Star Trek) possible? [closed]
Yesterday I asked this questions on physics part of stackexchange, but I was redirected to engineering side of the force ;-). We all know about the rapidly developing technology of 3D printing. ...
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0answers
132 views
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, ...
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1answer
91 views
How do I “subtract” sketches in CAD?
I am using 123D Design to build a model for 3D printing. What I want to build is a large 2D rectangle with several smaller rectangles inside. Then, I want to extrude the larger rectangle, but leave ...
