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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14
votes
5answers
11k views

Using dollar-store picture glass for print bed on top of original heated aluminum bed?

I'm having a really hard time printing on my aluminum heated bed... Cleaning it just results in it being scratched (trying to scrape dried hairspray/glue/etc off) and I don't think it is particularly ...
11
votes
5answers
7k views

Lines of PLA not sticking to the bed

When I am printing objects that have a lot of surface area on the first layer parts of that layer will rise up causing there to be gaps in the first layer. Here are two pictures. The first one was ...
10
votes
3answers
6k views

Why does my PLA filament form a spiral shape and clog my extruder?

I'm using brand new PLA filament and am getting frequent clogs in my extruder. I've had this problem with 2 different filaments from 2 different vendors. It will be print just fine, then clog up. ...
10
votes
2answers
7k views

How does the home position work on a Prusa i3 RepRap Printer?

By what process does the Prusa i3 determine it's home position? I have a feeling that it works like this, but I'm not entirely sure about it: If none of the end stops are activated; assume you are ...
9
votes
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 ...
9
votes
2answers
1k views

Z axis top brackets, of P3Steel, differ between v1.x/2.x and v4

I have been studying the differences between version 2.x and version 4 of the P3Steel frames - in particular the AC08 bracket at the top of the frame which secures the top of the smooth bars and ...
9
votes
2answers
833 views

Prusa i3 hotend not getting to the temperature that I want (180 to 230 celsius)

I recently finished building my first printer. The only problem that I'm having is that the hotend is not getting hot enough to start printing with PLA (180 to 230 degrees celsius), the hotend getting ...
9
votes
3answers
2k 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 ...
9
votes
1answer
6k views

Z offset incorrect

Repetier host 1.6.2. Used Slic3r and CuraEngine in RH1.6.2 to slice my prints. OK, I've a problem.. Z offset does not work.. Well.. Flashed EEPROM clear. Enabled EEPROM and CHIT CHAT within firmware....
8
votes
2answers
9k views

How do I wire the z-axis motors in parallel on the Prusa i3?

There is a little circuit board, or breadboard or something in the diagram of the wiring for the i3. And it's mentioned that the z-axis motors need to be wired in parallel but beyond that they don't ...
8
votes
3answers
11k views

Z-axis steppers and bed alignment problems

I've actually solved this, but I think its still a useful question which I don't think is easy to answer with existing questions. As soon as I'd built my ANET-A8 (Prusa i3 DIY kit), I found I was ...
8
votes
1answer
870 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 ...
8
votes
3answers
262 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.
8
votes
1answer
2k views

Teflon tubing in nozzle throat coming out?

I have a HE3D prusa XI3 printer with an MK8 extruder. While printing or testing, the extruder makes a clicking noise as if the filament isnt getting hot enough to extrude. I began my investigation and ...
8
votes
1answer
657 views

Getting started: shell passes not fusing in x/y, and a slanted wavy pattern on vertical walls

I'm trying to find the main reason(s) for the imperfections I'm seeing in printouts from my printer. It is an I3 clone from Folger Tech. I got this printer from a friend who used it to print a larger ...
8
votes
2answers
537 views

What is wrong with my “disable sensor” gcode?

I have a spool of translucent PLA filament that doesn't work well with the filament sensor on my Prusa i3 MK3. The translucency trips up the sensor, making it think the filament ran out. I thought I'd ...
8
votes
2answers
2k views

Auto Bed-Leveling with Inductive Proximity Sensors and Magnets

I recently decided to upgrade to auto bed-leveling using an inductive proximity sensor and an aluminum build plate on my Prusa i3. I also wanted to try to secure the build plate using neodymium ...
7
votes
4answers
929 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 ...
7
votes
3answers
5k 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?
7
votes
3answers
2k views

What causes gaps in small region fills and how to prevent them?

I saw this cool Nuka-Cola bottle opener. I made it: As you can see, nasty gaps have appeared in the text. What could've caused them? I am sure I set the filament diameter correctly. So why did ...
7
votes
1answer
2k 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, ...
7
votes
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 premium ...
7
votes
1answer
1k views

Marlin's bed leveling Mesh Validation Pattern ignoring home offset

I'm using a Prusa clone with Ramps 1.4, Marlin 1.1.5 and an inductive proximity sensor Z-probe. Due to the design of the printer, the X and Y end-stops and the Z-probe are not exactly aligned with the ...
7
votes
1answer
286 views

How is a J-Head Extruder Head attached to the Prusa i3 rework?

I am building a Prusa i3 Rework, and I haven't been able to find out how to attach my J-Head extruder (see below), at the moment it's just kind of held there by pressure, but it seems there are two ...
7
votes
1answer
2k views

Z Axis getting stuck with Marlin 1.1.0-RC7

Background: I just successfully installed a RepRapDiscount Full Graphic Display on my Prusa i3; and in doing so, I've upgraded all of the firmware to the latest version of Marlin, 1.1.0-RC7. With my ...
6
votes
3answers
399 views

How can I avoid that a small bit of filament sticks out of the nozzle during heating?

So when my Prusa I3 is heating up, a small bit of filament is coming out of the nozzle, forming a small string at. When the printing starts, this results in a small plastic ball on the bed, impacting ...
6
votes
3answers
625 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 ...
6
votes
2answers
2k views

Why are my prints so defective?

I received a Monoprice Maker Select v2 (I3 V2 clone) from my wife for Christmas. The sample .gcode files that came with the printer generally print great with no noticeable defects. However, when I ...
6
votes
1answer
637 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 ...
6
votes
3answers
219 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 (...
6
votes
2answers
173 views

Line width changes depending on the direction the print head moves

I just re-ran all basic calibration steps from the Original Prusa i3 MK2 Manual. Now, when doing the first layer calibration, lines that are running in positive X direction are ok, while those ...
6
votes
2answers
3k 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 ...
6
votes
1answer
16k views

Print Nozzle Dragging and Smearing Filament while Printing

I am building a Prusa i3 MK2 Clone and I am caught on this one. I have replaced the extruder with a MK8 adapted by myself to fit with most of the previous hardware from the E3D style extruder. My ...
6
votes
1answer
2k views

What kind of silicone glue should I use to attach my thermsistors?

I was watching a couple of videos about installing a Thermistor on the heat-bed and extruder of my Prusa i3; both videos mentioned that if I use either Sodium Silicate (Muffler & Tail Pipe Sealer) ...
6
votes
1answer
1k 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 ...
6
votes
1answer
237 views

3d printer drip problem

I have a problem with my 3d printer. When I am printing, the printer seems to drip. I am very confused because I never saw this before and I do not know what to do. I attach a picture of it. Why ...
6
votes
1answer
541 views

Second layer of ASA print 'runs'

I am using a Prusa i3 MK2 to do a print in ASA, and I'm having a problem where on the second layer the plastic 'runs' into lines across the direction the head travels. It looks like the plastic is ...
6
votes
3answers
502 views

Is cutting the arm off the Z-axis switch a good idea?

We all know (or should!) that the repeatability of common spring-arm limit switches is crappy at best. I'm looking to build & install one of the precision height adjusters for the Z-axis limit ...
6
votes
1answer
407 views

Which algorithm does Marlin use to create arcs?

I'm writing a paper about a plotter (I use a Prusa i3 with a custom "extruder" aka pen). And I'm supposed to write about the algorithms I/the plotter use(s). I tried reverse engineering, but since I'm ...
6
votes
1answer
592 views

Beginner in calibrating HE3D Prusa XI3

This is my first time calibrating my printer and I'm not sure where to start. The printer is running Repetier v0.91 firmware that came on the SD card that came with the printer. Anyway, the question ...
6
votes
1answer
2k views

What's the best way to clean PETG residue from a magnetic steel sheet PEI?

I have the MK3 with a magnetic PEI and some PETG residue is stuck on the surface. How can I remove it? Does acetone work? Thanks
6
votes
4answers
4k views

Support material first layer adhesion issues

I am quite new to 3D printing, and having difficulty printing first layer of an object with support. The object has a few curved surfaces that touch the print bed, so not a big starting foot print. ...
6
votes
1answer
832 views

Filament not extruding

I've recently bought an Anet A8, and haven't been getting good prints with it. I noticed there was filament leaking from the top of the hot end and pooling, eventually dripping over onto my prints. I ...
5
votes
2answers
5k 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 ...
5
votes
4answers
637 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 ...
5
votes
2answers
2k 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 ...
5
votes
4answers
602 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 ...
5
votes
4answers
847 views

Seamless prints?

Is there a way to make all your prints seamless?? I know there was this program that printed a vase constantly changing the z axis making it seamless. Why cant this be done with regular prints?
5
votes
1answer
140 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 ...
5
votes
5answers
2k views

Prusa i3 PLA fails to stick to first layer on curves

I have been searching around on google and not found any answers to this dilemma. I am using a Prusa I3 printer with PLA, trying to print horseshoes for the company I work for. They are for model ...

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