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Recent Posts
- Stepper motors or a BLDC servo motors? Which is better and when to use them.
- Modifying Marlin Firmware to work with a TandemB
- Construction of a TandemB Prototype
- Working in Tandem – Unconventional XY-axis layouts for 3D printing, laser cutting, CNC milling, engraving or pick and place.
- Bootstrapping a pen plotter to make a 3d printer
- The ideal shape for a multirotor ‘ducted-fan’ that can dramatically improve thrust and flight time.
- Breaking through the 2 hour barrier – Maximising efficiency to achieve the longest flight time of an electric multirotor (quadcopter)
- One step conversion of an image to gcode for Makerbot Unicorn and Reprap style 3D Printers
- DIY Dual H-Bridge to control a Pen Plotter
- Old-school Scientific Pen Plotter Teardown
- Playing around with a heated chamber design.
- MIT: 3-D printing with variable densities
- Mike Biddle: We can recycle plastic
- Printable PCB motor?
- Cryogenic Granular Grinding
- Drawing gears in Sketchup.
- 2011 – The year of the 3D printer?
- IceRap – Water deposition for ice printing?
- Constructing the ‘gunstrap’
- Rethinking the Mantis Repstrap.
- How to use cad.py.
- Using cad.py on a Windows PC
- CNC milling with RAMPS.
- Making endstops from printer photo interrupters.
- Printer Parts + Time = Repstrap.
Tag Archives: arduino
Working in Tandem – Unconventional XY-axis layouts for 3D printing, laser cutting, CNC milling, engraving or pick and place.
Below I outline three separate concepts for moving in the X and Y plane with a specific emphasis on minimising the moving mass, maintaining high mechanical stiffness, reducing backlash and allowing two stepper motors to work in tandem. It is my hope that these concepts, … Continue reading
Posted in Tandem
Tagged 3d printing, arduino, backlash, cnc, engraving, equations of motion, laser cutting, moving mass, pick and place, polargraph, RAMPS, reprap, repstrap, sketchup, stepper motors, TandemA, TandemB, TandemC
9 Comments
DIY Dual H-Bridge to control a Pen Plotter
In my previous post I pulled apart an old pen plotter revealing it to be controlled by two brushed DC motors. In order to power each DC motor a H-bridge was required but I had none on hand. However it turns out a H … Continue reading
Making endstops from printer photo interrupters.
If you have pulled apart a printer, fax or scanner then there is a high likelihood that you have found a few photo interrupters. Some of these may be pre-packaged in a plastic housing with three wires attached which you can modify to use … Continue reading
Posted in Mendel Build
Tagged arduino, endstop, photo interrupter, photo transistor, reprap, repstrap, sketch
6 Comments
Arduino Mega & a character LCD.
Still playing with my new toy, the Arduino Mega, this time with an character LCD with a parallel interface. The LCD I had laying around but you can buy them pretty much anywhere at low cost. I used this guide … Continue reading
Posted in A Reprap Project
Tagged arduino, arduino mega, character display, heated bed, LCD, reprap
1 Comment
Getting acquainted with my Arduino mega.
An Arduino Mega landed on my door step last week and I have been playing with it ever since. It was purchased from Australianrobotics.com.au for only $46AUD ($42USD) due to their grand opening special. I have the intent of eventually making the … Continue reading
Posted in Mendel Build
Tagged arduino, arduino mega, led cube, pololu, reprap, stepper controller.
2 Comments
