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Questions tagged [prusa-i3-rework]

The Prusa i3 Rework is a revised version of the third iteration of Prusajr's famous RepRap 3D printer design.

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1answer
32 views

Migbot extruder loading

Has anyone seen a printed bottom extruder block with a cone added to get the filament into the hole which then feeds into the metal tube that connects to the heater? We have a hard time getting coiled ...
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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
183 views

Z axis Control of Prusa i3

I have modified my Prusa i3 MK2 printer so that the existing extruder motor has now been attached to a 5mm lead screw with a 1mm pitch. What is the easiest way to control the extruding of the printer ...
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2answers
2k views

Changing the home position on a Prusa i3 MK2

As part of a project with my university, I have developed a new extruder to attach to a Prusa i3 MK2. My problem is that both the nozzle and PINDA probe have moved 17mm forward and 0.5mm to the right. ...
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1answer
281 views

Selecting G-code files from SD with serial

I'm doing a project for college connecting an app made with app inventor to a Raspberry Pi and then using the RPi to make a printing queue for a Prusa P3 Steel. The thing is that I already have the ...
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2answers
910 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 ...
4
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1answer
8k 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 ...
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1answer
863 views

Heater cartridge connector for Original Prusa i3 MK2S

I am thinking about rewiring the extruder heater cartridge. What is the connector on the Rambo Mini? I'm thinking about putting a similar connector close to the extruder to make replacement easy. I ...
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1answer
628 views

Prusa I3 starting print above heating bed? [closed]

So I have been going through modding my printer and I have come across a new problem that I have not had issues with before. My 3D printer will start to print above the heating bed even though it ...
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1answer
117 views

Magnetic field around the printer

I'm using a low voltage active screwdriver that is sensitive to magnetic fields. It is weird, even I put a metal piece on the glass over the heated bed and check it with the pen, it lights fully. If ...
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3answers
513 views

Silver Solder specifications for hot end heating element

In this question I was told that I should use silver solder to connect the heating element to the power supply. (I was also told that a ceramic extruder head was the way to go, but I'm working with ...
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2answers
823 views

What grade of wire is required for the heating element on a J-Head extruder?

I have a large resistor that goes in my J-Head extruder. It's grey, and it came with the extruder. I'm uncertain as to what grade of wire I need to solder to it. It being one of the elements of the ...
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2answers
325 views

Frightened of Cheap Chinese Power Supply as I hook up the heated bed

My 12V DC 30A Power Supply 360W Power Supply is really cheap, and it's worked well for setting up the motors; but now that I'm on to the heated bed, which uses considerably more Ampage than that of ...
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2answers
3k views

How do you make sure you have the right voltage on the trimpots on an A4988 stepper driver?

I've been looking into this, but: I'm not certain how to configure my multimeter; I don't know how to keep the voltage going, and; I don't know how to keep the multimeter connected to the VMOT? I'm ...
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1answer
243 views

Connecting Sain Smart Mechanical End Stops to Ramps 1.4?

I have Sainsmart Mechanical End Stops, and I'm building a Prusa i3 Rework. I've recently gotten the x-axis to move, but it needs to stop when it gets to the end and it does not do that; I end up ...
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1answer
87 views

Can I use a pin header in a breadboard to wire up the z-axis motors in parallel?

Can I use a pin header with the molex on my Nema 17 motors and a bread board to wire up the z-axis motors in series? Also, do breadboards and pin headers have ratings, the way that wires do?
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1answer
98 views

How do I determine that the electronics are working with the test firmware?

You may want to use this code to test all the electronics before installing any of the suggested firmwares. From Final Step in the RAMPS 1.4 Wiki There's a bunch of code in the sketch, and it ...
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2answers
730 views

Is 22-Guage Stranded Hookup Wire the correct wire to connect the Switching Powersupply to RAMPs 1.4?

I obtained the following wire 22 Gauge Stranded Hookup Wire from Radio Shack: ...
3
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1answer
526 views

Can I use a multimeter to test the outgoing voltage of this power supply?

I don't want to blow out my multimeter or my electronics, so is it safe to test the DC output voltage with a multimeter on my OEM power supply?
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2answers
554 views

Safely Hooking a Switch up to an OEM Power Supply?

I ordered an OEM Power Supply and I intend to hook up with this rocker switch I believe it's like the one specified in the Power Supply Documentation which reads: In the US, IEC320 C14 plug ...
5
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1answer
775 views

Why does my MKS Base not recognize my thermistors?

I recently upgraded my Geeetech Acrylic Prusa i3 with a MKS Base V1.4 and it would not recognize the thermistors (100K {type 1}) even though they worked fine with the Arduino Mega 2560 with the RAMPS ...
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3answers
135 views

When building a RAMPS 1.4 based printer, can I safely plugin just some of the components to test if they are working?

If I need to test out some of the components of a RAMPS 1.4 based 3D Printer, can I only plug some of them into the board (not all of them) and test them out? I'd like to test out the NEMA 17 motors ...
8
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1answer
3k views

Is this fuse a good choice for my Prusa i3's power supply and RAMPS 1.4?

Wondering if this fuse is safe to use in this switch/plug to turn on /off a 12V DC 30A Power Supply 360W Power Supply that will power a RAMPS 1.4 board for a Prusa i3 with an external led display that ...
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1answer
39 views

My endstops have 4 female plugs, but the examples on the RepRap Prusa i3 Site have 3; what are each of them for?

The Sainsmart Endstops I picked up are different from the ones described in the RepRap Prusa i3 Rework electronics assembly wiki; they have 4 female plugs that go into the RAMPS 1.4 board instead of ...
7
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1answer
253 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 ...
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2answers
1k views

Is the weather a problem for MDF frames?

I've acquired all the parts to build a Reprap Prusa i3 rework, the only missing part is the frame. I'm in doubt between a MDF cut (cheaper) or acrylic (more expensive), of course a cheaper one is my ...