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 (clarify in the question if it is useful to be specific).

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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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1answer
32 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
28 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
14 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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2answers
798 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 ...
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1answer
47 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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1answer
23 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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0answers
20 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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4answers
367 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 ...
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5answers
7k views

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 ...
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1answer
66 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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42 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
276 views

Odd print artifacts on same layer as large top surface

I printed the following object (I'm printing the single opening version, Flower_pot_3.STL), and observed an unusual print artifact. I would like some idea of what's going on so I can avoid it in the ...
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3answers
181 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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1answer
34 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
1k views

3D printer stepper motors only going one direction and skipping in the other

I have built a couple of 3d printers now and I'm having a little trouble with one I'm currently on. I frankensteined this one with two of my other printers that I had built. I took the Arduino mega ...
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25 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
123 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
46 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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39 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
560 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
86 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 ...
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1answer
781 views

Adjusting Z-axis (Monoprice Maker Select)

Have a Monoprice Maker Select v2 and have recently changed to an Anycubic Ultrabase glass plate. In Cura, the model I am printing is in the middle, as shown here: but the printer puts it around 2/3 ...
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3answers
2k views

PLA bubbling in the first layer of a print

I am using a Prusa i3 printer and just recently I have been having problems with the first layer. Here is a picture of what it looks like. I have tried levelling the bed and it seems to be level. ...
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2answers
353 views

Best way to fix ABS corner curling on enclosed Prusa style printer with PEI heatbed?

I'm trying to set up an enclosed (custom enclosure) Prusa i3 style printer for ABS, but having a fair amount of difficulty preventing the part corners from curling. Detailed specs: Geetech A10 (...
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1answer
1k views

Screeching Noise when moving the Z-Axis Down

I have had my Prusa i3 clone for about two years and it has always made a screeching sound when the z-axis is moving down. I have tried many solutions for this problem like greasing the z-rods, ...
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2answers
680 views

How to re-program NEW Prusa MK3 MMU2 to accept taller Z axis

In a previous question, I have modified the Z-axis-height of my Prusa Mk3 from 250 mm to 350 mm. Prior to the MMU2 upgrade, I changed the code in my printer to accept the new height the following way:...
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1answer
274 views

Prusa i3 MK3S Z axis moving down in calibration wizard

During recalibration of my printer (due to the nozzle catching on the prints), the Z-axis went down where it used to go up, damaging the heatbed steel sheet in the process. It then failed calibration. ...
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1answer
115 views

PID autotune fails under all conditions so far. Any ideas I haven't tried?

I got some Prusa i3 clones with Melzi boards with Marlin, or nearly so. One of them performed very well (considering that the board would reboot whenever power was applied to the build plate. But I ...
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1answer
735 views

Does Octoprint stop printing on Crash Detection?

A corner of my model curled up, causing the head to crash into it. The Prusa MK3 detected the error, printed a message to that effect, and moved the print head to the home position. I was surprised ...
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1answer
341 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 ...
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52 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. ...
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4answers
587 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, ...
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1answer
7k views

Maker Select Plus 3D Printer Head Size Settings for Cura

I want to print multiple objects in a single G-code file on my Maker Select Plus 3D Printer. On the Cura "Machine>Machine Settings..." menu, what are the correct settings for "Printer head size" in ...
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3answers
212 views

What is this called and where can I buy a replacement?

In the image, there is an object circled in blue on the anet a8 printer that I need to buy a replacement of, however, I can not find it online, please help.
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1answer
98 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 ...
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1answer
331 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 ...
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34 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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1answer
526 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 ...
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1answer
340 views

Is my 3D printer totally dead?

The last few days my 3D printer has not been working, despite the fact that the LCD Screen has been working perfectly (since the problem the LCD bright potentiometer went very sensitive, so the ...
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1answer
507 views

Add a laser module to Reprap Guru Prusa i3

I have a Reprap Guru Prusa i3 v2 3D printer. Here is a link to the 192 MB manual. And here is the link to the resources page for the Reprap Guru. Page 58 of the manual discusses electronics. I ...
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1answer
373 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 ...
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1answer
88 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. ...
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1answer
1k views

Issues with Proto-pasta filament extruding on prusa mk3

Has anyone run into problems printing with Proto-pasta's HTPLA on a Prusa MK3 (or any printer really)? I picked up some samples from PP, specifically their glitter filament and a couple of the ...
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2answers
4k views

Does anyone know the thread size (pitch and lead) of the Anet A8's lead screw?

I bought a new printer, and unfortunately the left nut for the lead screw isn't tapped. Does anyone know the thread size, w.r.t. both pitch and lead, of the lead screws?
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3answers
2k views

Anet A6's filament not feeding through the nozzle

Whenever I try putting the filament through the nozzle it does not go through. I have searched everywhere online and have found nothing.
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3answers
1k views

Is there a reason for the z-axis M5 drive nut to be super loose on the lead screw?

So I bought a prusa i3 kit from a company called folger tech off of ebay. I've built it and even printed out a few parts, but I noticed that a lot of noise seemed to be happening only while the x-axis ...
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3answers
558 views

Lead screws - M8 instead of M5?

I am building a Prusa i3 MK2S (Dolly). I find it very difficult to find M5 rods for the Z axis, I have an M8 lead screw with 8 mm lead, So I thought since M8 is widely available online I could ...
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3answers
3k views

Tips for not burning out my Arduino Mega or catching something on fire when wiring a Prusa i3?

I'm reading about wiring up the electronic components to my Prusa i3 using an Arduino Mega 2650 and Ramps 1.4. I have step sticks, a heated bed, and a Switching Power Supply 12v Dc 30a 360w (more ...
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2answers
660 views

Prusa Mk3 printing rough surfaces

My Prusa Mk3 has been making this sort of rough surface on prints, and I'm not sure what caused this. I am printing with PLA Prusament with 0.2 mm layer height at the preset for PLA. What is this,...

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