Questions tagged [prusa-i3]

The Prusa i3 is the third iteration of Josef Průša's RepRap 3D printer design. This is an open-source design, the tag should be used regardless of individual manufacturer. You might want to add the specific manufacturer or model as a separate tag.

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1answer
29 views

Is it better use Nylon fillement for cold pull even if I have been using PLA?

Using Prusa I3 MK3S I am using PLA fillement and I need to do cold pull from time to time. I noticed many people on Internet suggestusing Nylon fillement for clod pull. I wanted to reach out to this ...
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1answer
34 views

Sudden deterioration of print quality on Prusa i3MK3S+

I've had my Prusa i3MK3S+ for a couple of months now, and done 100+ prints, and other than a few issues with first layer adhesion (which are pretty much solved now), have been getting consistently ...
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3answers
67 views

Ideas to tune for 300 % speed

I am using PLA and I am looking for ideas on using the Tune option to tune my Prusa i3 MK3 to increase the speed to 300 %. The 300 % speed works perfectly fine for ...
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1answer
23 views

Can I use Creality bed on Prusa MK3S?

I need a Prusa MK3S smooth bed and I am not able to get it unless I wait for a few month. But I can have a ...
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2answers
32 views

Help fixing Prusa i3 MK3 print jams

While printing a paint rack from thingiverse I keep getting jams. Other prints (shorter) work fine. Can anyone give me a clue? Here's a video of the printer I thought it was heat creep so I increased ...
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1answer
28 views

Where to find “Heat deflection temperature” , “Impact resistance Charpy” and “Tensile strength” for a specific brand Filament PLA?

I have an MK3S 3D printer, and I use this table as a reference on how to tune my printer for a specific Filament brand. https://help.prusa3d.com/en/materials I am trying to find a few missing ...
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0answers
27 views

Adjusting extruder

Since I have some problems with printing I wanted to try to adjust my extruder esteps. While changing the esteps I noticed that the value has almost no impact. My default setting was 93 and the ...
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1answer
114 views

Prusa MK3S Y-skewed prints

My prints have recently started to come out with a serious skew along the Y axis. This occurs regardless of printing parameters such as speed/acceleration. I don't know the exact cause yet, can ...
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2answers
158 views

MINTEMP BED Fixed error when running consecutive print

I am using "Pretty PETG" along with PrusaSlicer's consecutive print mode. What I am noticing is that upon finishing the first print, the printer hits ...
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1answer
156 views

What type of plug is this?

I'm not really sure what the type of plug on the heater cable is. Is it a Molex KK or maybe a JST PH? The printer is a Prusa I3 Hephestos (aka BQ Hephestos). It came with this "BQ HOT-END ...
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2answers
522 views

PETG grinding with direct drive extruder

I've been wrestling with a filament grinding problem for a few weeks now and I'm stuck. The problem manifests itself as starting a print alright then extrusion stops while the printer keeps moving. ...
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0answers
110 views

Can't manage to force my print to standby while I insert a nut - Prusa Slicer and Tronxy XY2 pro

I use the Prusa Slicer on a Tronxy XY-2 pro which I believe uses RepRap firmware. I believe it uses RepRap firmware because I had to input it into the Prusa Slicer initialization questions, but I'm ...
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3answers
128 views

Under extrusion

I have a Prusa i3 3D printer and am using Slic3r for slicing. I've noticed that my extruder is underextruding. I've correctly set the nozzle diameter and the filament diameter and I've already tried ...
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0answers
44 views

Print quality ruined after firmware update i3 mk3

I'll try to give as much detail as I know here but let me know if there is anything missing. I have a Prusa i3 MK3 that I got in about 2018 and it was working perfectly fine. Print quality was pretty ...
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1answer
93 views

Ringing with Ultimakers, what is the cause?

At my work, we have 3x Ultimaker 2+, 1x Ultimaker 3 and 1x PRUSA i3 mk3s. The Ultimakers have been used quite a lot for the past three years, but the belts and bearings seem ok. I got heavy ringing ...
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2answers
1k views

3D Printed Sphere, How to Remove Roughness

I have a model of an eye that I custom made in Blender 2.83 that when printed only creates roughness on the printed object near where I had the supports. The supports are not the cause of the ...
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0answers
145 views

Running a Pi 4 off of a Prusa MK3S

I'm having some trouble powering a Raspberry Pi 4 for Octoprint off my Prusa MK3S. When I connect the Pi directly to the Rambo board from the GPIO header pins (as in the image found at this link -> ...
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2answers
235 views

Mesh bed levelling does not update any more after MemoryError

I have had issues with printing on my i3 MK3, especially when it came to the first layer. In March 2020, I have installed the Prusa Mesh Leveling plugin for Octoprint. With that plugin and a Nylock ...
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0answers
70 views

Translating values from Marlin firmware to RepRap firmware for Prusa i3 MK3S [closed]

I am also a beginner trying to understand the firmware values and getting to know my printer before I actually get the Duet so please bear with me, do let me know when I have gotten the values or ...
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0answers
47 views

Geeetech i3 Pro C with 3DTouch major issues

I'm in dire need of trying to fix my Geeetech i3 Pro so many attempts to fix it. After connecting all these pins correctly I uploaded the Marlin firmware with the correct configs. I will attach the ...
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2answers
834 views

How to solve burnt blobs on Prusa MK3S (PETG)?

As stated above, I am trying to solve a problem I've had for a long time. Unfortunately, this has recently intensified to the point where it causes layer splitting/detaching from each other. I have ...
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1answer
41 views

Can't print the top part of a circle

I'm trying to print the painter's tripod from this tutorial: I can't get it to finish the print. It always fails towards the top when it's closing the circles. I've tried brims and even glue for ...
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1answer
26 views

CTC i3 Y-axis thin / no filament deposition

I have this CTC i3 printer; when I print square test prints, as it moves along the Y-axis back to zero (front). It extrudes lines but very thin or none at all. But opposite direction along the Y axis ...
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1answer
182 views

How to check if filament sensor is ok?

The filament sensor of my i3 MK3 stopped working. In the support menu, it just says IR: N/A. This is the same output as if I disconnect the filament sensor. My PCB ...
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0answers
35 views

ETA for print job showing negative in Repetier host

I'm using Repetier host 1.0.6, and ever since adding default retraction settings, the "ETA" showing during a print job is negative: It stays this way throughout the print job, which is no fun, since ...
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2answers
89 views

Issues with print Prusa i3 infill breaking and causing clogs

I'm having some issues with my Prusa i3 prints. I'm trying to print the default beer opener print that came with the Prusa's memory card but the infill will break causing clogging and now allowing the ...
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1answer
181 views

Prusa MK3S weird 'Blobs' on PLA print surface

This is the first time I've run into this problem and it seems very confusing. I wanted to print a simple functional part out of PLA and although the first few layers were fine, the 6th/7th layer ...
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0answers
60 views

Prusa MK3S Nylon&ABS print failures

I'm using Prusa i3 MK3S and every time I want to create a durable, impact resistant part, I use ABS/Nylon. The problem is, however, that when I print something small (of less than 1 cm width for ...
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1answer
216 views

Prusa i3 MK2 Heated Bed Thermal Runaway Problems

I'm having an issue with my Prusa i3 MK2 MMU. It starts printing just fine, and everything gets up to operating temp quite quickly. However, after printing the first few layers, it seems as if the ...
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3answers
2k views

PRUSA likes the bed to be cleaned with isopropyl alcohol. What else should I use?

I have the original Prusa i3m3 printer. Prusa recommends cleaning the bed before each print with isopropanol (isopropyl alcohol), with only occasional cleaning with acetone. The textured bed ...
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0answers
29 views

Printer places prints off the bed after change in bed Z-probe area settings [duplicate]

I really don't know what I am doing wrong. Since changing my bed level sensor from left of the extruder to back mount, it doesn't work proper anymore and I have some fundamental thing I don´t ...
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1answer
71 views

My Z-axis is limited to 15 mm at height [closed]

I have a Prusa i3 and I have a problem concerning my Z axis. It stops at 15 mm even the object to print is more than this. Can you, please, help me to solve this problem.
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0answers
46 views

Help needed implementing Bear Upgrade

I am attempting to build a 3D printer using the Bear Upgrade for guidance. In this moment, I am implementing the X-Axis. The X_end_idler consist in two parts, the idler and the belt tensioner, as you ...
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1answer
441 views

How do you call the Z-axis mechanism in a Cartesian 3D Printer?

How do you call the mechanism that allows linear motion along the Z-axis in a Cartesian 3D Printer? I know what the individual parts are; it is a lead screw, a smooth rod ... but how do you call the ...
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1answer
3k views

Filament spreading apart and stringy on first layer

I keep having this issue on prints where the first layer has stringy lines that don't stick together. I've tried the following things Replaced nozzle and throat Used new filament (to rule out ...
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1answer
207 views

E3D V6 nozzle seized into heater block

The 0.4 mm brass nozzle in my Prusa i3 MK3 is worn out - the extrusion hole is visibly larger than the replacement nozzles I have to fit. So I’m trying to replace the nozzle. Unfortunately the ...
2
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0answers
67 views

Shell detaches from the rest of the part

I'm printing with a Prusa MK3, with the following settings: 3 perimeters 50 % infill infill overlap: 50 % The filament is Polyalchemy emerald green (PLA). Nozzle temperature: 210 °C. ...
4
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4answers
696 views

Smallest dot/dot indent for Prusa MK3S using PLA

I want to make a project involving many small dots indents and I would like to know how I can calculate the smallest dot hole the Prusa i3 MK3S can extrude around on a layer using PLA. In other words, ...
4
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1answer
260 views

Clearance between moving parts

I am using a Prusa printer to print parts for prototyping. The project I am currently working on needs parts to be able to slide against each other and they need to be printed together. A bit like ...
5
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4answers
945 views

First layer looks weird and print fails

Update below Printed 650 of these tokens, no problem. Then all of a sudden I can't get them to stick and the first layer looks wavy and weird. After a few tokens it knocks one loose and the whole ...
3
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1answer
727 views

Prusa i3 mk3 step skipping and layer shifting

After approx. a year of more or less problem-free printing (40 days print time) with Prusa i3 mk3 kit, we started to suffer the random layer shifting on Y axis. We inspected all the motor connectors ...
3
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1answer
952 views

Setting up UBL for the first time on Marlin 2.x on a Prusa i3, how often should I level the bed using G29?

I used to use the Marlin 1.x software that would level the bed by probing the 4 corners of my print bed (a long time ago, it's been at least 2 years since I used my printer, wasn't able to set it up ...
4
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0answers
60 views

Marlin 2.0 Firmware temperature jumping on LCD when trying to configure UBL

Flashed Marlin 2.0 on my Folgertech 2020 Prusa i3 variant. Calibrating seems to have gone smoothly until I tried to set up UBL. Saved the mesh into EEPROM with the ...
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2answers
2k views

Prusa i3 MK3S keeps clogging during print. Ugly streaks sometimes, and complete clog when printing with lower layer lines

The extruder on my Prusa i3 MK3S keeps clogging while printing. Loading is fine, and each time it clogs, unloading and loading the filament seems to work. The filament extruded just after resolving a ...
5
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1answer
887 views

Thermal runaway on extruder hotend

I am getting thermal runaway even after PID autotunning many times. I tried 10, 15, 20, 25 and 30 cycles and after reuploading FW onto the printer but I still get the error... I've built a copy of ...
2
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1answer
602 views

Prusa i3, MK3: Firmware updated to 3.8.0. Display shows white blocks

About the printer: Prusa I3 MK3 [Sintron] Arduino Mega 2560 (just replaced) Replaced LCD / Smart controller FIRMWARE 3.8.0 Steps I have already tried: Replaced faulty Arduino Failed to flash ...
3
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1answer
118 views

Hotend drops to 175 ºC once extrusion starts (MINTEMP error reported)

Hotend drops from 205 °C to 175 °C, and then the printer errors MINTEMP. How can I fix this? Fan is not starting yet. ...
3
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1answer
314 views

PET-G under-extrusion after changing the nozzle to a 1.2 mm d. one (Prusa i3 mk3s and PrusaSlicer v2.0)

PET-G is the main filament I use. I can achieve high quality of my prints with my Prusa i3 mk3s printer. Recently however, I've recently changed my nozzle from the default 0.4mm to the 1.2mm. I ...
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2answers
2k views

How can I add an extra fan, controlled by a microcontroller, to my board?

I recently discovered this kit after reading this Instructables, Adding More Extruders to Any 3d Printer: I'm pretty sure I can use this kit with my board since it uses the same drivers as mine. ...
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1answer
42 views

Has anyone rebuilt Prusa3D firmware for the Genuine Pruse i3m3s?

With no answer to my question two days ago about how the Prusa printer behaves with an intermittent open or shorted thermistor, I'd like to ask this question of relative last resort. Prusa seems to ...

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