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9 votes
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How to wire for AC mains voltage relay, when printer board is connected to AC-charging laptop computer?

In effect, the ground (from mains) does not need to be connected to the relay, the relay interrupts the "hot" or "neutral" (preferably the "hot", but that is not possible for all plugs, e.g. some ...
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7 votes
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Add a laser module to Reprap Guru Prusa i3

By connecting to the D9 output header (see RAMPS 1.4 shield schematic below) you only have 2 wires that represent a scheduled load and ground. You actually need to connect the positive (red) lead to ...
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6 votes
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Connector Suggestion for Extruder and Heatbed

You might be able to use one of the connectors (Deans Ultra, EC3, XT-60/30, Bullet) that are normally used for RC models. They're made for very high currents. The XT60 connectors depicted below are ...
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6 votes

How to wire P.I.N.D.A. v2 to an SKR V1.3 board?

TL;DR To answer your question how (by assuming you have a 4 pins PINDA v2 sensor) to connect the sensor to your board, you have 2 options: Do not connect the white wire and treat the sensor as you ...
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6 votes

How to wire for AC mains voltage relay, when printer board is connected to AC-charging laptop computer?

You need to take a step back and think about what you are doing. From what I read there you are connecting the neutral to the low voltage. You should definitely not mix connections between your high ...
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5 votes
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What is the MKS Base AUX header connector type?

You need a 2.54 mm pitch (similar pitch to Dupont) female IDC (insulation displacement connectors on a ribbon cable) connector of 2x5P (pins) for the header connectors that have a notch. (for ...
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5 votes
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How to connect a NEMA 17 stepper to RAMPS 1.4?

There are very many combinations that will work. A bipolar stepper has 2 coils. Swapping the coils, or reversing the polarity of a coil, will simply cause the stepper to rotate in the opposite ...
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5 votes
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Are these the right types of electrical connectors for hooking my Switching Power Supply up to a wall outlet?

It is okay to just use bare wires in the type of screw connector found on your power supply. They're designed for it; they have a little plate under the screw that prevents the wires from being frayed ...
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4 votes
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In the standard PC Cable Wire that goes from the wall outlet to the switching power supply, are they standard and what are the wire specifications?

Very basically speaking, electricity works like this: There's some source that delivers a certain voltage. You have a device that operates at a certain voltage. The device voltage and supply voltage ...
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4 votes

Connector Suggestion for Extruder and Heatbed

I agree with Tom's answer about RC connectors. Another good connector option worth considering is Anderson Powerpoles. They're "modular" so you can use them to assemble connectors with multiple wires....
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3 votes
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Anet A6 - First time assembled, won't turn on

Welcome to 3d Printing! as this is a first day of the printer there could be a list of items... First thing first: disconnect all peripherals, so we can test mainboard. Before connecting PSU we can ...
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3 votes
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Plug sdramps module and Anet A8 LCD together into RAMPS smart adapter

The Anet A8 uses a simple LCD with 5 buttons, the problem is that the buttons do not use digital pin signals, instead analog pins are used. Based on the pressed button, with corresponding resistance ...
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3 votes

How to wire for AC mains voltage relay, when printer board is connected to AC-charging laptop computer?

Mains electric specialist here. When working in mains power, mechanical execution of work is everything. The first rule is do not casually mess around with mains power -- it will kill you! If you've ...
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3 votes

In the standard PC Cable Wire that goes from the wall outlet to the switching power supply, are they standard and what are the wire specifications?

It's somewhat unclear what you mean by "standard PC cable", but virtually all desktop computers use IEC C14 sockets/IEC C13 plugs. Such connectors/sockets are rated for 10A 250V and thus you can ...
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3 votes

Are these the right types of electrical connectors for hooking my Switching Power Supply up to a wall outlet?

The block on the supply will accept the bare wire you could use the yellow in the middle on the right, but the screw on the block essentially does its own crimp.
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3 votes
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Heater cartridge extension wiring

Heater polarity doesn't matter The heater cartridges are just large resistors and so polarity is irrelevant. Either can be positive or negative. You can extend the leads by cutting and splicing in ~20 ...
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  • 365
2 votes

Safely Hooking a Switch up to an OEM Power Supply?

The power supply that you posted is 12v 360w. This means that (in the USA with 120v power), it will draw 3 amps at 120v. Your switch is rated for 10A at 250V so it works. The switch should be ...
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2 votes
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Safely Hooking a Switch up to an OEM Power Supply?

At 250V a rating for 10A means 2500 Watts, which is fairly enough to use with a typical 3D printer. Make sure that the wire you use to connect the switch to the power supply can also take the current ...
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  • 2,854
2 votes

Sunhokey Prusa i3 axis x, y, z?

X-axis is right-to-left (Carriage motor) Y-axis is front-to-back (Base/Bed motor) Z-axis is up-and-down (lead screws) There are several videos on YouTube. This playlist seems good.
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2 votes

Connector Suggestion for Extruder and Heatbed

I've had great luck with "G16 aviation connectors" -- easy to find with a Web search, and they come in any number of pins from 2-10 (the 10s are a little harder to find). Round (so easy to panel-mount)...
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2 votes
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MKS Sbase Probing

After testing my z-min endstop pins, I found out that I could trigger the probe manually by using a jumper wire between Signal and Ground. I then used a NPN MOSFET to connect the sensor to the endstop ...
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  • 401
2 votes

What is acceptable voltage drop from PSU to controller?

Regardless of how the voltage is lowered, you aren't delivering the power to the heating elements that they are designed to deliver. For a resistive heater, the power scales with the square of the ...
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  • 4,428
2 votes

Anet A6 stock power wires.. the live, the zero and the ground. Which is which

This picture shows the correct wiring for a British 13A mains plug: The green/yellow wire must always be connected to the earth terminal (at the top of the plug). This is most important, and will ...
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2 votes

How to wire for AC mains voltage relay, when printer board is connected to AC-charging laptop computer?

Let's look at the notes on the relay first, as these tell us what to connect the terminals to. Powered side NO/NC - Normally ...
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2 votes

Where did I go wrong by trying to add an extra motor to my board?

D35, D37, D17 are the pin labels on the Arduino Mega. These do not correspond to pin numbers ...
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2 votes
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Ender 3 Pro extruder drive rocking back and forth

Sounds like one end or the other in your stepper cable is not seated correctly or has shaken loose there are 4 wires if even one doesn't make proper contact you will get a shaking back and forth ...
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2 votes
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What is the maximum length of the TMC drivers signal wires?

10 cm would be fine. That's the short answer, the real answer is that it depends on the UART speed and the exact conditions that you will be extending them. If you expect noise feedback from the motor ...
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  • 2,286
2 votes

Heater cartridge extension wiring

1 meter puts you far enough away from the heater than you don't need high temperature wiring to extend it. The larger the guage(e.g. 20 guage) the less resistance you will add to the heater circuit. ...
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1 vote
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Where did I go wrong by trying to add an extra motor to my board?

I got it to work using a CNC shield. Still haven't figured out the RAMPS 1.4 board. It doesn't work using D1 and D2 inside Aux-1 because they are used in serial communication to an LCD. So every time ...
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1 vote
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Anet A6 stock power wires.. the live, the zero and the ground. Which is which

As it is alternating current, why are you interested to know which is which? (I'm referring to the blue and the brown wire, the green/yellow has an obvious purpose) E.g. a CEE 7/4 plug can be ...
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