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Given a viscosity is it possible to calculate required pressure for desired output?

The following rheology question relates to predicting the flow of polymer-based non-newtonian fluids extrusion processes. In this case, applied to 3D printing. I'm trying to calculate the pressure required to produce the desired output based on my…
Charles
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Ultimaker Original temperature sensor replacement?

The title almost says it all. I was searching on websites like amazon.com and ebay.com for a replacement of the temperature sensor of my Ultimaker 1, but could only find replacements for Ultimaker 2 (PT100), but I know those aren't compatible. What…
Markus Appel
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Weird stepper issue when setting up Marlin printer

When manually controlling the z-axis in reprap, it works fine. If I use the home button, it doesn't move. Instead, it stalls/freezes/hangs. It attempts to turn, but can't successfully make a full turn.
Padawan
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How are infill paths connect to form an efficient path that respect the object's geometry?

I am attempting to write a basic slicer for some objects I am working with. I need to write a custom slicer as the objects are not polygonal based (they are implicit objects) and therefore cannot be plugged into slic3r. I can easily obtain the…
Chris Uchytil
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Can G-code scripts be run automatically on inserting an SD card when using Marlin Firmware?

When running Marlin Firmware, is it possible to run G-code scripts/series of commands automatically when you insert the SD card? I'm running Marlin on a 3D printer board using an ATmega 2560 based board with a reprap discount LCD controller with an…
0scar
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default axis steps per unit Makerbot replicator 2

I can not find anywhere default steps per unit for Makerbot replicaor 2. I'm using Ramp V1.4 instead original board and need to know default steps :/
Anton Osadchy
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Extrusion is not continuous

Issue: Printing is not continuous. Observation: While printing, the upper layer of the nozzle is leaking. And also the printing is not continuous, the layers are not formed properly. Practices: Alternate nozzle has been fastened, Bed leveling has…
shachin_vs
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Stepper motors are not working when connected with RAMPS 1.4

ISSUE: Stepper motors are not working when connected with RAMPS 1.4. OBSERVATION: The LED lights(LED 2,3,4) in the RAMPS 1.4 is not powering up. PRACTICES: I use Arduino Mega 2560 and installed Marlin firmware in it. And I bought a RAMPS 1.4 in a…
Baalaji V
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Replacing bearings with Drylin bushings

When I purchased my China made Anet A8 printer, it came with the ball bearing style linear bearings for the 8mm guide rods. While pulling parts out of the box and putting them together, I noticed several of the small ball bearings fell out of their…
Pᴀᴜʟsᴛᴇʀ2
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What special considerations must be taken when designing parts for 3D printing?

What are the 'headline' basic design rules for FDM? Which topics for design principles do you recommend to someone who has purchased an FDM machine and wants to understand what is practical? In other words, where is the place to start when you…
cmm
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MKS board losing power after endstop installation

I just bought an MKS gen v1.3, and everything on it works fine except for when I plug in the endstops. My X endstop works perfectly in every endstop outlet, but when I plug in my Z and Y endstops, the entire board loses power. Immediately after I…
TECTEC3 Studios
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How to install new ATmega firmware via the ISP pins?

While uploading .hex firmware directly onto boards that allow this via CURA, this is not always an option for all machines (for lack of a functioning USB-connectable port for example). On both my TronXY X1 board (Melzi 2.0 V5 with ATMEGA1284P) and…
Trish
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Export firmware as a .hex

Because .hex files can be installed without any need of an Arduino (serving as an ISP) to flash the firmware on Creality machines I was wondering, if firmware compiled via some other means (for example the Repetier firmware or Arduino) could be…
Trish
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Show the time index in Cura Layer View playback

Cura has a layer view feature that lets you watch a simulation of the extruder head as it lays down material at each layer. Is it possible to get Cura to show a time stamp as it does this? That would let me set reminders to check a print just at…
Joel Coehoorn
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Would adding fiberglass packaging tape to a bowden tube be beneficial?

I came across this suggestion on the klipper github, https://www.facebook.com/groups/Hypercube.Evo/permalink/192106034761003/. In order to reduce the stretching in the bowden tube you can add fiberglass packaging tape lengthwise along the tube. This…
Perplexed Dipole
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