Archive for the ‘3D printing’ Category

Stepper Motors (Part 6)

Part 1, 2, 3, 4, 5, 6, 7, 8, 9 This post is about an other driver module which is very popular in the world of robots and 3D printers. These modules features the DRV8825 Stepper Motor Controller integrated circuit made by Texas Instrument (Datasheet available from >here<). Although many clones exist, it looks like Pololu was at the origin […]

3D Printing (Part 10)

Part 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 Almost shocking ! As I was not very satisfied with the quality of my prints, and after experiencing a strange awful printing incident (Wires every where, big melted material blob on top), I started having some sort of concern about temperature readings. I used a very thin thermocouple connected to a pro grade thermometer (Testo 945). […]

3D Printing (Part 9)

Part 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 Open source printers are for ? … They are for mods, hacks and tweaks ! The first obvious modification (not to say immodestly improvement) deals with the cooling air blower in front of the print head. Most the air flow would splits on the Y axis rod, some would re-converge thanks to physic’s law, […]

FreeCAD (Part 1)

Part 1 For various reasons, I decided to investigate the field of open source CAD software for designing and printing mechanical parts. So I spent some time surfing the web for CAD applications and found a dozen of software which are topping the hit list. Blender software happens to be trusting the top of this list. A couple of […]

Make of the day

Back to the 3D prints again with a spectacular tourbillon ! A must see for all fans of clocks… and 3D prints And that’s not all, Christoph LAIMER put all the stl files on thingiverse !  

MicroFAN (Part 1)

Part 1, 2, 3 We gained quite a lot of experience after printing few kilometers of ABS on our Makerbot 2x. Controlling the temperature inside the cabinet solved a lot of problems. After few attempts, we decided to modify the printer by adding a fan on top of the transparent cover. The fan is turned […]

3D Printing (Part 7)

Part 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 After many hours of parts design and many rolls of ABS fused in our Makerbot Replicator 2x, it is time to write a little review on this nice printer, just be before it comes obsolete because of the new announced Makerbot products. The Replicator 2x is doing what it was supposed to do. It […]

Meet us at the Gamer Assembly

HL2 group is now the team behind Arduinoos. We are very much involved in the development of local and national initiatives in the world of open data, open software and open hardware. The team co-funded QuaiLab a very active FabLab which has been selected for managing a Maker Assembly aside the now famous Gamer Assy. So, you […]

Stepper Motors (Part 2)

Part 1, 2, 3, 4, 5, 6, 7, 8, 9 Stepper motor drivers These electronic devices are the interface between the stepper motor and the controller (e.g. Micro-controller, computer, etc.). Here is a short recap of the expected requirements for such an interface: Drive Unipolar and/or Bipolar motors Convert step commands into appropriate waveforms applied to the motor coils […]

3D Printing (Part 6)

Part 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 I can still hear my father saying “The right worker is the one who owns the right tools”. Time, experience and my own thoughts lead me to slightly change this declaration into “The right worker is the one who is capable of making his fit for purpose tools”. This sentence not only applies to […]