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Code, circuits, & construction. A stepper motor is a motor controlled by a series of electromagnetic coils.

code, circuits, & construction

The center shaft has a series of magnets mounted on it, and the coils surrounding the shaft are alternately given current or not, creating magnetic fields which repulse or attract the magnets on the shaft, causing the motor to rotate. This design allows for very precise control of the motor: by proper pulsing, it can be turned in very accurate steps of set degree increments (for example, two-degree increments, half-degree increments, etc.). They are used in printers, disk drives, and other devices where precise positioning of the motor is necessary.

There are two basic types of stepper motors, unipolar steppers and bipolar steppers. Unipolar Stepper Motors The unipolar stepper motor has five or six wires and four coils (actually two coils divided by center connections on each coil). Bipolar stepper motors The bipolar stepper motor usually has four wires coming out of it. Two-Wire Control. CNC Mill. A milling machine (subtractively) shapes solid materials using both the tip and sides of a rotating cutter.

CNC Mill

Unlike most other machines, a mill both (a) pushes a toolhead in all directions through the raw material, enduring significant forces in the X, Y, and Z axis (often all three simultaneously), and (b) requires precise positioning in the X, Y, and Z axis. This is technically difficult. Roman Black has a review of "Good CNC Designs", which shows a few ways of meeting those requirements. There are a variety of machines that sacrifice one or more of these capabilities in order to improve the precision or power or speed of the other capabilities or to reduce the cost of the machine. a CNC Router precisely pushes a rotating cutter with significant forces in the X and Y axis, but uses a flat sole plate to support all the Z forces and to maintain a single precise fixed Z position.


DIY Arduino Cases You Never Knew Existed. There are sure a lot of varieties of Arduinos out there but there may even be more of a variety when it comes to Arduino Cases.

DIY Arduino Cases You Never Knew Existed

Let’s take the most popular Arduino form factor, the Uno. Below are a handful of unique cases for the Uno-sized boards. by [Megaduty], Arduino Protection Box. Panelolu. Panelolu Release status: working Introduction.


Sanguinololu, LCD and rotary encoder with switch. Having seen the PanelMax LCD and Encoder for RAMPS, I wanted to get a similar setup working on Sanguinololu. the first step was to get an ATmega 1284P working and load Marlin firmware which supports this sort of setup with minimal changes.

Sanguinololu, LCD and rotary encoder with switch

Wiring and Testing.

Prusa i3

MendelMax 1.5 with integrated electronics by srepmub. I just finished my 1.5 (lm8uu) build, and in the spirit of open source decided to list the important parts I used here.

MendelMax 1.5 with integrated electronics by srepmub

First, I designed the following two things to be able to raise my MendelMax, so that I could mount the PSU and electronics inside, on an integrated floorboard: To protect the PSU from falling debris, aluminum netting used in model building worked really well (awesome stuff btw): Rather than print clips to hide the wiring, I found that electrical tape works well and looks great:

CheatSheet.pdf. Reprap Electronics items in reprapdiscount store on eBay! Skeinforge settings. Unfold, You can click 'Add Profile' in the extrusion dialog, the new profile will be a copy of the old selected profile.

Skeinforge settings

For example, in the extrusion dialog, select ABS, then type 'ABS_UserSettings' and click 'Add Profile'.

Printable Stuff

ABS 1.75mm_Filaments_Welcome to Reprap-Walmart! - Sanguinololu Setup. According to the supplier "Think3DPrint3D", my electronics was already flashed with Sprinter by Kliment and they user Kliment's Printrun/Pronterface to control it all, so after connecting it should just run.

Sanguinololu Setup

Great!!! I went ahead and installed the pre-compiled version of Pronterface. When that didn't work I moved on to the latest version from GitHub (linked above). I wasn't really thinking straight, as the fact that Pronterface was only showing Com 1 should have immediately pointed me at the problem. Prusa Mendel RepRap: Calibration Step Two. Think3dPrint3d. Mouser Electronics - Electronic Component Distributor. Breadboard Sanguino - Okay, so you want a Sanguino but Zach's Sanguino is too expensive ;-> Or too red ;-> Or you just have to have it NOW ;-> And you just used up the last of your solder so a strip board is out.

Breadboard Sanguino -

What are you to do … bread board Sanguino. Of course, nothing in life is free. While the bread board Sanguino is easy and quick, it also is very limited. You'll need a +5V regulated power source. You can either put one together yourself or use something like the [Solarbotics bread board power supply]. Oh, and by the way, I lied. And one last thing … this page is derived from an entry on the [Gorilla Robotics blog]. Thanks to the Arduino creators. Breadboard Atmega644p 16MHz crystal momentary switch 4 x .1uF capacitor 2 x 22pF capacitor 10K resistor 3 x 6 pin male header 1 3 pin by 2 row male header 6 wire ribbon cable, about 4-6 inches 3/32 heat shrink tubing, about 4-6 inches 22g wire Wire cutter and stripper. PrusaBuildNotesBraino. Summary: To catch my build notes for my Prusa Build Autumn 2011.


Repetier-Firmware startpage · repetier/Repetier-Firmware Wiki. Slic3r - a STL-to-GCODE translator for RepRap 3D printers. Repetier-Host · repetier/Repetier-Host Wiki. Sanguinololu v1.3 Motherboard. RepRap.

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