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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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1answer
69 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
48 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. ...
2
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1answer
73 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
115 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
33 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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1answer
47 views

How does Prusa3D firmware respond to an open or shorted thermistor during a print?

I have a Prusa3D i3m3s. The problem occurred once before with firmware 3.6.1. Last night I upgraded to firmware 3.7.1 and repeated the problem almost exactly. The symptom is that at what appears to ...
4
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2answers
584 views

Is there a way to print with ABS without enclosure?

ABS is a very strong material, but it also has some downsides. One of them, which is the necessity of having a printer with enclosure, completely discouraged me from using it, as it would be a waste ...
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2answers
185 views

Prusa i3 MK3S 3D printer PETG printing problems

I am using a new Prusa i3 MK3S 3D printer kit. I print lots of things using PLA and PETG. After a week of great performance I noticed that when printing some objects with PETG filament I often ...
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1answer
70 views

How to connect BLTouch sensor to Alunar M508 using LSEE 3D v1.0 board?

In the process of updating my printer (Alunar M508), I decided to add "Auto Bed Leveling" using a BLTouch sensor. After doing a lot of Googling: I found firmware that will upload and work with ...
4
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1answer
113 views

Change hotend thermistor input in Marlin

I have a Marlin driven Prusa i3 clone, by accident I cut through both thermistor wires for the hotend while it was powered on. The Arduino reset and the hotend thermistor no longer work. Since there ...
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3answers
84 views

Prusa MK3 heatbed marks

I've got some curious marks on my heatbed. It appears to be from my black Sunlu PLA+ (I can just feel it if I scrape my finger nail over it) but I can't scrape it off with the metal spatula. When I ...
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3answers
97 views

Advice for 3D modeling peg for sprinkler dripper

I'm not really sure where to ask this question as I think it is a design question, but also a printing question. So if there is a better place to post, I'd be happy to harass someone else. I'm (re)...
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0answers
34 views

Grayscale laser engraving with Ramp1.4

I have a Reprap Guru Prusa i3 v2 3D printer. To this I added a 5.5 W laser that I purchased online. The board of my 3D printer is an Arduino Mega 2560 board with Ramp 1.4. I have connected my laser ...
6
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1answer
232 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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0answers
23 views

Selective reinforcement of some places in my part [duplicate]

I have a part that experiences larger than average forces in some of its protrusions. It would make sense to reinforce walls, and in particular strengthen infill in those areas. But to save material ...
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2answers
82 views

What is causing these strings in the overhangs?

I am consistently getting these strings in the overhangs on models that folks say they are printing without supports. Can anyone tell me what is causing them and what I can do to fix them? I've ...
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4answers
234 views

Power OctoPi from printer

I'm wondering if there is some trick to power my OctoPi with the power supply of my 3D printer. I'm using an Geeetech I3 Pro W. The power supply itself should be able, but the output is as far as I'm ...
4
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1answer
105 views

Can I repurpose most of the components of this Prusa clone for a Delta?

I have a generic Prusa clone that I'm not using (my primary issue with it is the lack of rigidity in the frame housing as built). Will the motors (ks42sth40-1204a) and controller that come with it be ...
2
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1answer
59 views

The first layers while printing look strange

I own a Geeetech i3 Pro W and I started printing today. Amazing how it works. I just recognized while printing my first bigger model something very strange: At the beginning some parts are missing ...
2
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2answers
225 views

PLA print warping on heated bed [duplicate]

I am trying to print the 3 jaw lathe chuck on Thingiverse. This specific piece is the scroll.stl, but it applies on every big piece. The print material is (transparent) PLA, that I print on custom ...
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1answer
83 views

Small dent problem

Whenever I print, I tend to have a small dent that appears on several of my prints, that are not in the original design. These are not following the layer orientation. As far as I notice, nothing ...
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1answer
113 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 ...
2
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1answer
245 views

Minimum MOSFET rating for MK3 heatbed

My printer (Prusa i3 Mk3 rework clone, with a 200 x 200 MK3 ALU-heatbed, RAMPS 1.4) has a car relay for heated bed control. It works just fine using bang-bang on Marlin, but I would like to replace it ...
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1answer
161 views

Temperature fluctuations, is it normal?

I have an Anycubic i3 Mega-S and when I'm printing something (especially when it's hotter) the temperature increases and decreases by around 3 degrees during the print. Is this normal? I was worried ...
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4answers
198 views

Trouble printing small thin pole

3D-printing newbie here. I have a Geeetech's Prusa i3 mk2 B. I'm trying to print this: https://www.thingiverse.com/thing:1358311 That's a mold, with 2 external parts and a core. The exterior prints ...
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1answer
169 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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2answers
80 views

Printer fails to print a cube

I'm trying to print a calibration cube from PLA using a 70 °C heated build platform on a Prusa i3 Pro W. This results in: Please explain why it prints like this.
3
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1answer
158 views

How to remove firmware warning

I'm operating my Prusa i3 MK3 through Octoprint. Basically, this means I can start prints from remote. However, there's the firmware version warning which requires me to press the knob and confirm ...
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2answers
517 views

Prusa I3 mk3 - Not your average inconsistent first layer

Over the last two days I have tried everything I could come up with to fix the following issues. It all started with bad bed adhesion.(pic.1) Solutions for these problems are readily available, so I ...
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2answers
459 views

Prusa i3 Mk3 - Top layer wrinkles (not on buildplate)

Recently started using my kit Prusa I3 Mk3 and noticed that with large horizontal surfaces a wrinkling pattern is emerging. As you can see in the image the wrinkles seem to run parallel, the surface ...
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3answers
131 views

Is this hot end salvageable?

Kicked off the second long print in a series (printing Lack enclosure components). First 10 hour print was flawless. Started this one, saw the first layer laid down well, went to bed. Woke up to this (...
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2answers
434 views

Infill is rough - how to enhance?

My i3 MK3 is printing very well for solid parts of an object, but it messes up with infill. As you can see in the image, the infill is broken into pieces and bends to that the surface becomes rough ...
2
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2answers
367 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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1answer
1k views

Bed Heating Failed, Printer Halted, Please Reset

A couple of weeks ago I have successfully built a 3D Printer and Printed an XYZ Calibration Cube with ABS material at bed temperature 80 °C. Next Day I tried bed heating at bed temperature ...
1
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1answer
234 views

Prusa i3 improvement - cooling fan

I wanted to add a cooling fan to my Prusa i3. The board used by this printer is an MKS GEN L v1.0, such as this one: The cooling fan plug seems to be the white one on the top left corner, just below ...
0
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1answer
152 views

Print parts fail mid-print

I am trying to understand what could cause a misprint after several layers. It acts as if the extruder head bump to the PLA after a while. Thus moving the parts and then, it fails because it is not ...
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0answers
87 views

Ridges and stepping in my prints

I'm having a problem where every few layers seems to be offset slightly, creating a stepping effect. The images below should be smooth along the sides, but having this ridge type effect. My question ...
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1answer
53 views

Z Axis Cannot Move

I've got a Geeetech Pro B i3 printer (my first 3d printer) and after I've assembled it I started testing the axis. X and Y work well but Z cannot move. If I disconnect the couplings the motors move ...
1
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1answer
111 views

Prusa i3 pro W - not extruding

I'm trying to do my first ever print with my Geeetech prusa i3 pro. When I try to print that printer seems to work, x,y,z axis all moving ok. What isn't working is that little to no plastic is being ...
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0answers
52 views

Steps to setup a new 3D Printer

I hope it doesn't get closed since my question is widely open: I got recently a Geeetech Prusa i3 Pro B as a DIY kit, the assembly took a lot of time since the package did not include a building ...
2
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2answers
601 views

RAMPS board - no power to heatbed

I'm setting up my first 3D Printer, a Prusa i3 MK2 clone. When I try to heat the bed, nothing happens. Then Marlin throws this error after a while: ...
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2answers
3k views

Prusa i3 MK3 latest release first layer calibration issues

I am trying to get my first layer calibrating done but no matter what I do, I can not get the lines sticking to the bed. My first question is the distance of the P.I.N.D.A. What I did was what Prusa ...
2
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0answers
229 views

Geeetech Prusa I3 Pro W. Cannot update firmware

Initially when I built it, it turned on and the LCD worked. I had an issue with the Z axis but I think that's unrelated to my current issue. The next day when powering on the LCD just showed black ...
2
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1answer
471 views

Moving the Z-axis stepper motors below Z 0.0

My Prusa i3 MK3 forgot his home position and it now assumes that the Z 0.0 position is right at the top of the printer. I've asked about this in the Prusa forum before and at that time, I accidentally ...
2
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1answer
807 views

Prevent stopping and heating in the middle of the print

In my latest 3D model, the Prusa i3 MK3 stops, heats and then continues the print. However, there's no noticeable drop in temperature. The display shows 210 °C/90 °C (nozzle/bed) as ...
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1answer
807 views

Upgrade firmware without Slic3r and USB connection?

When printing a part today on my Prusa i3 MK3, I was prompted to upgrade the firmware. I went to the website and downloaded the firmware as a .hex file. When reading the attached firmware upgrade ...
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2answers
575 views

How small may I design objects for the Prusa i3 MK3?

I have designed a bread mark and printed it on the Prusa i3 MK3. I wanted it to have as sharp edges as possible, so I used a triangle: However, it seems that the print cut off layers that are too ...
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2answers
1k views

Getting worse quality prints on 0.05 mm than on 0.10 mm layer height on Prusa i3 MK3

I have a new Prusa i3 MK3 and I have noticed that my prints consistently turn out worse on 0.05 mm layer heights than on 0.10 mm. The edges of the 0.05 mm prints turn out rough and sometimes stringy. ...
5
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1answer
348 views

Prusa i3 pro b second layer failure

I just bought a 3D printer => Geeetech Prusa i3 b. I build it myself and I'm trying to print the famous boat, the Benchy one. Here's my settings (I've tried Repetier host and Slic3r or Ultimaker ...
5
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1answer
422 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, ...