3D Printing Stack Exchange
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1500 questions
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5 answers

Prints falling off the bed towards the end of the print

I have been trying to print an object that is 4 inches tall. About at 3 inches it falls off the bed. I am using tape on the heated bed and right before the print I am wiping the bed with rubbing alcohol. After the first time I tried hot gluing it to…
Loanb222
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Scaling objects with constant wall thickness for 3D printing

The question is how to scale an existing mesh without changing the thickness of the walls? I am using Blender to create STL files for 3D printing. Let's say I create a shell for a model railroad car. Since 1/87th is the most common scale I make…
eaelec
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Printer homes to Z stop-switch, but presses on heat bed during printing

I have a Prusa i3 that homes properly when you use the menu. After adjusting the bed and homing several times, it keeps the head at a reliable distance. However, when I try to print from an SD card, the printer buries the hot end in the heat…
Kendrick
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Easy way to create honey comb filling for a generic printer/onshape

This is my second 3D model, be forgiving... ;) I have constructed a 3D model with some bigger solid parts with FreeCAD. After uploading it to shapeways, it turned out to be too expensive to be printed like that. Googling around, gave me the…
andreas
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2 answers

How do you 3d print from an existing part when you have no CAD drawings?

We have a toy with some broken parts, an Executivity Gear Master. I don't think it's made anymore. Some tiny parts were easy to break and we'd like to 3d print some replacement parts. We don't have CAD or any other 3D drawings file, just a few of…
Agent Zebra
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Changing raster angle, raster width and build orientation in Ultimaker Cura

I want to try out different combinations of raster angle, raster width and build orientation in Ultimaker Cura. I don't see any settings where I could change these. I am using Cura 2.3 Any suggestions how I could change that?
GSH
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5 answers

3D printing a boat hull

I am wondering if it would it be feasible (at an affordable price) to 3D print a boat hull (small dimensions, maybe something like 60x40x20 cm). I am mostly concerned about: durability (against salty water, UV rays, extreme temperatures (under…
Pop Flamingo
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Why would one choose 12 V from 24 V, from a safety standpoint?

I have seen many people saying on this site and many other 3D printing websites that 24 V systems are safer, compared to 12 V systems. By safer, I am talking in terms of fires or other electrical and component failures. Why would a 24 V system…
lights0123
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4
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Motor driver chip install direction?

I got a new MKS 1.4 controller board and it came with A4988 driver chips. But I can't figure out which way they install. I found something saying to match the printing on the back of the chip to that on the board. But I don't see anything that…
CoAstroGeek
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2 answers

Cura with Pronterface UI stops printing

When I use Cura with the Pronterface UI it sometime just stops printing. When it stops the printer just stops, the UI looks like it's still printing but nothing is moving in the printer, also, trying to control the printer from the UI does…
Nir
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2 answers

gcode to move the printhead up for maintenance

I've got a Monoprice Mini Select (15365) and it takes FOREVER for me to manually spin the dial to get the printhead to raise all the way up so that I can perform maintenance (clear blockages in the nozzle or apply new tape to the bed, etc). So, I…
Kenny Wyland
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Has anyone used a Shield Buddy (en lieu of a Arduino Mega2560) as the RAMPS 1.4 host board?

I have read a few times1 that the Arduino Mega can struggle to perform the tasks required for 3D printer control, as the AVR chip is working at its limits, and this is why some manufacturers have moved away from the ATmega2560, to make custom (and…
Greenonline
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Marlin, end stops, and position report - possible bug?

Am seeing the following behavior in Marlin: When moving the printhead, if an end stop is hit, a position report (M114) erroneously reports the print head position as where it was trying to go, as opposed to where it's position actually is. For…
Mtl Dev
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3 answers

How to print a 6" wheel in ABS?

I'm using a Flashforge Pro and attempting to print a wheel about 6mm thick to serve as a platform. In other words, the wheel doesn't have to be solid, but spokes won't do the job. I've experimented with different temperatures, but, because of ABS'…
Hertfordkc
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4
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Blow vs suck air over hotend's heatsink

I've build a 3D printer from sourced parts and mounted the hotend cooler to blow air over the heatsink. Talking to a friend, he said it's better to reverse the airflow over the heatsink, but couldn't give me an argument other than everywhere he saw…
Nicu Surdu
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