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Questions tagged [fdm]

Questions about Fused Deposition Modeling (FDM) as an additive manufacturing technology.

8
votes
1answer
73 views

How to avoid stringing?

How can I avoid the irregularities and stringing in the print. Printer Used: Fortus 450mc Model: PC Model tip: T10 Support tip: T12SR Support: SR-100 Slice Height: 0.0050 in I have printed two ...
4
votes
2answers
78 views

First layer of print comes out poorly even when placed on a raft (which prints fine)

I'm printing PLA with the Creality Ender 2 and my print comes out totally fine with the exception of the first layer. Here's the weird part though, if I place a raft or a brim below/around the print -...
6
votes
3answers
105 views

What prints can I do to test/calibrate my printer for precision?

I specifically want to test calibration tolerances precision accuracy I'm having trouble with Print in Place models and I'm trying to find out if there's something I can do to improve my print ...
6
votes
2answers
75 views

Line width changes depending on the direction the print head moves

I just re-ran all basic calibration steps from the Original Prusa i3 MK2 Manual. Now, when doing the first layer calibration, lines that are running in positive X direction are ok, while those ...
3
votes
1answer
70 views

Linking the 3D printing path coordinates to CAD for modelling

I was reading this research paper titled Sub-modeling Finite Element Analysis of 3D Printed Structures. In this, firstly, the author is trying to create a sketch for Engineering analysis using the 3D ...
4
votes
1answer
132 views

Any family of plastics / filaments that bend and keep their shape?

Not asking for a product recommendation, unless there's only one product out there like this... I have a need for a flexible filament that retains its deformation, kind of like silly putty. Are there ...
3
votes
1answer
134 views

Print quality problem with M3D FDM printer

My model looks like this, does anyone know what's going wrong? I'm thinking that if the small object looks like that, it's probably because of the slicer? And how about the bottom part of the cube... ...
7
votes
2answers
296 views

Mains powered heatbed safety

I'm building a 40x40x40cm corexy and I am quite impatient so I want the heated to reach the target temperature as fast as possible, so I ordered a Keenovo silicone heater It is a 220VAC 1200Watt bed, ...
1
vote
1answer
100 views

Problem With large prints on Lulzbot Taz6

I have got a Lulzbot TAZ6 3 days ago. Last night I started a print which is 21 hours long and when I returned check on it this afternoon it was a complete mess. These are the objects that I wanted to ...
6
votes
1answer
2k views

How can I prevent my nozzle catching on my print?

I have created a budget 3d printer using parts of old computers, specifically I used the CD drive mechanisms for the x,y and z axis. This printer is similar to the curiosity E-Waste printer, as seen ...
1
vote
1answer
74 views

How is FDM Better than CBAM?

So there is a company called impossible objects that use CBAM technology witch the description can be found here http://impossible-objects.com/technology/ I am pretty sure that they are the only ones ...
7
votes
1answer
2k views

missing small sections of layers after a retraction

So I am missing small sections of a layer when it prints, after a retraction for a layer change or a move, the extruder stops moving (no it isn't clicking or anything else. Just not moving). Which is ...
4
votes
2answers
577 views

How to make an object hold water

What are the key points to keep in mind when designing and printing an object that is intended to hold water using a FDM printer?
4
votes
4answers
739 views

Troubleshooting printing layer squashing?

I am having a strange intermittent printing error specific to one particular object I'm trying to print. My printer is a BCN3D Sigma R17. I am printing a thin wall (0.6mm) cup object. I'm using: ...
4
votes
1answer
307 views

Help with Repetier firmware (probably locked and licensed)

I'm in the process of tweaking the firmware (Repetier 0.92.6) because of some problems mentioned here: Delta printer printing incorrect dimensions in X and Y directions. Z dimensions are correct But ...
7
votes
2answers
213 views

Weight Reducing Design Change for Extruder Driver

I'm considering removing the driver motor from the extruder assembly, and placing it on a stationary mount point instead, and then using a flex-shaft type connector from the motor to the extruder ...
3
votes
2answers
246 views

Post processing FDM for strengrh

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 ...
2
votes
2answers
345 views

Is it possible to print an object that has a “roof” without anything under it?

I recently bought a 3d printer and right now i am printing a normal cube just to try it out. However I was wondering, when it has the last part left of the printing where it needs to create the roof, ...
4
votes
2answers
1k views

What is the best color of PETg to use for outdoor durability?

I am doing a quad-copter now. I am not sure what color is the best to use for outdoor durability, especially in sunlight. They say PETg is the most durable material amongst cheap ones. But what ...
6
votes
2answers
384 views

White PLA prints frequently have rough sidewalls near top of the print

This has happened a few times whenever I print with the white PLA (Hatchbox 1.75 mm). It seems that the print job produces smooth sidewalls for most of the part but at a certain point and above, the ...
3
votes
4answers
435 views

FDM: Clear=transparent part

I intend and would like to print a transparent hemisphere. I have a Taulman T-Glase clear 1.75 mm filament and I have XTC-3D. You can read this interesting page, Hacking t-glase to look more like ...
2
votes
2answers
9k views

3D print Configuration Cura - Anet A8

I'm new with my 3D printer, I just print two different pawn pieces from thingverse. I just used Cura to convert the files to be readable for the printer. Is my problem with the pieces has to do with ...
1
vote
1answer
204 views

Reprap prusa i3 Y and Z axis swapped when printing GCODE files

I'm having an issue with my new Prusa i3. (This one: https://www.amazon.co.uk/gp/product/B01DLIRDFW/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1) For some reason the Y and Z axis are swapped when ...
12
votes
4answers
979 views

Printing screws - is the output usable? (M3 or M4)

I just want to ask if anyone has successfully printed a screw (M3 or M4). Is the printed output usable as a screw? What printer is capable of printing screws? I am using an M3D printer - is there a ...
7
votes
2answers
237 views

What causes the print heat to 'catch' on the part?

What would cause this effect, and how can it be avoided? This is a PLA print, and it should look like this. I tried 215 and 225°C and both had the same effect. An earlier similar print at 220°C was ...
6
votes
2answers
93 views

What are the downsides and aftereffects of using a smaller nozzle?

A lot of consumer desktop F.D.M. printers comes with a 0.4mm nozzle. I'm looking to print fine details objects and I was considering trying to use a smaller size nozzle. But before I do so I would ...
6
votes
3answers
519 views

How to 3D print an object with variable printing speed?

I have a object to print for which I want the base to be printed very rapidly because it's just a cube but as the print reached around 70% a complex circular structure needs to be printed at a slower ...
16
votes
6answers
15k views

What are the advantages and disadvantages of an all-metal hot end compared to one with a PTFE heat break?

Related to an issue I had in this question, where the PTFE tube feeding my filament to the metal tip of the extruder clogged and became discolored: what are the advantages and disadvantages of ...
11
votes
3answers
602 views

Can toothbrush bristles be printed?

Is it possible to print toothbrush bristles using a common FDM 3D printer? I am particularly interested in the width of bristles, closeness together of each bristle, and the flexibility of each ...
7
votes
4answers
3k views

Raft hard to remove?

I've been having a hard time lately getting the raft off of my ABS prints. Is that a symptom of either a nozzle or bed that are too hot? Or is there some other factor I should be looking in to? I ...
5
votes
3answers
1k views

Glue sticks for print bed

I would like to get a green tombow PITS adhesive stick. On Rakuten, it costs \$1 (USD). On my 3d printer's (XYZ) retailer's site, it costs \$20 (USD). Due to the costs and the fact that Rakuten does ...
8
votes
3answers
3k views

Layer delamination

I've printed mostly ABS in the past and encountered delamination between layers many times. I've ensured the following conditions regularly: Build plate is level Base of print isn't warped (using ABS ...
5
votes
1answer
251 views

What are the appropriate ranges of gear ratios for 1.75mm and 3mm filament extruders?

Most 3mm filament extruders have some kind of gear reduction. Many 1.75mm extruders are direct-drive / ungeared but some do use gears. What kinds of reduction ratios are suitable or optimal?
5
votes
3answers
477 views

Is 3D printing feasible for this design?

In a design that I need to prototype, I have a coaxial, rotational joint between 2 cylinders connected to another coaxial rotational joint between 2 cylinders by a hinge. I have attached the ...
3
votes
1answer
418 views

Settings to change when upgrading from Smart Extruder to Smart Extruder+

I am optimizing a collection of slicing profiles and in the process of upgrading some profiles from the classic Makerbot Smart Extruder to the new Smart Extruder+. What are the parameters that should ...
6
votes
1answer
1k views

Proper settings for printing rubber and rubber-like materials?

I am struggling finding how to print complex shapes made of rubber, tpu, tpe... Are there any clear guidelines on how to print those materials without deforming and uncontrolled retraction? The ...
6
votes
1answer
1k views

Is it possible to use an aftermarket controller on a MakerBot?

I've got a dead MakerBot Replicator Dual and I'm not really interested in fixing it with about half the parts being proprietary, discontinued, and therefore very expensive. So, I'm wondering if it's ...
21
votes
2answers
889 views

Mushy small top layers?

I just added a fan to my printer because very small layers seem to come out very badly. For example, the 5mm PLA cube that's the top level of the test shape shown below. Watching closely, I can see ...
13
votes
2answers
4k views

Will I see a noticeable difference switching from a .4mm to a .3mm nozzle?

I currently print with a .4mm nozzle on my extruder, and my prints seem to come out fairly accurate; would I see much of a difference if I went to a .3mm? What are the pros and cons of larger and ...
13
votes
9answers
17k views

What could be causing my y axis to slip?

Occasionally, while printing, my y axis will slip and the layer will, from that point forward, be shifted, ruining the print. What might be the causes of an axis slipping? I have tried cooling the ...
8
votes
1answer
360 views

MakerBot Replicator 1 Voltage Regulator Fix

My Replicator (you know, the one made of balsa wood) has blown a voltage regulator on its MightyBoard for the second time. The first time, MakerBot graciously replaced it. However, they replaced with ...
34
votes
7answers
27k views

When to use 1.75 mm vs 3 mm filament?

Why do we have two standard filament sizes, 1.75 mm and 3 mm? Does it really make a difference when printing? Or is the 1.75 mm just for smaller printers? In what situations should I ...
15
votes
7answers
2k views

How to print an overhanging arc

I am designing a part that has to clamp around a 11mm bushing, and due to other design constraints, it has to be printed with a semicircle-shaped overhang: This is proving very challenging to print. ...
5
votes
4answers
2k views

How thin can I make the wall of a pipe?

For a science project, I'm 3D-printing some custom pipes and tubes to regulate the flow of gas (a combination of ethyl alcohol and water vapor) through an apparatus. They need to be pretty small, as ...
13
votes
4answers
1k views

My heated glass print bed keeps chipping and cracking. How can I prevent this?

My thermoplastic FDM printer has a heated bed and uses glass as the printing surface. Sometimes the glass will chip or break entirely when I'm removing my print. This happens most often when the print ...
17
votes
4answers
7k views

How do I keep my extruder head from getting clogged?

Using a thermoplastic MDF printer with a 0.4mm extruder nozzle, I frequently have trouble with the nozzle getting clogged. I am not sure what's causing the clog, but my guesses are dust and/or burnt ...