Antre du Tryphon

Accessing a serial port from a web server

May 18, 2013 · claude Ubuntu 11.10 Unix Ubuntu 11.04 +4

On most Linux distribution, it is impossible to access a serial port (ex. /dev/ttyS0) from a web server such as Apache or lighttpd using a cgi. Simply add the user under which the web server runs (www-data for example) to the group dialout. To do so,...

Script listing all the keys on a memcache server

March 21, 2013 · claude Ubuntu 11.10 Unix Ubuntu 11.04 +3

This script lists all the keys on a memcache server.

Preventing warping when printing 3D ABS objects

February 16, 2013 · claude 3D Printing Prusa Mendel ABS

The biggest issue when printing 3D ABS objects is warping. As an example, this 8 cm x 8 cm bit holder is badly warped. In this example, 5 mm. !](http://www.ctheroux.com/uploads/2013/02/dremel-bit-holder-warpage.jpg) Adding disks (1.5 cm x 1 mm) at...

VirtualBox does not run or runs slowly under Windows 8

February 3, 2013 · claude Windows Windows 8 Virtual Box

Windows 8 comes with Hyper-V pre-installed. If you want to run Virtual Box, you must completely uninstall Hyper-V through the "Add and Remove Programs" option from the Control Panel. Failing doing so will result in:

Cannot reach 110 Celsius with a Prusa PCB Heated Bed Mk 1

December 2, 2012 · claude 3D Printing Prusa Mendel

I was not able to reach 110 Celsius with a Prusa PCB Header Bed MK1. My initial installation was with the PCB traces down with a borosilicate glass on top of it. I found out that installing it with the traces up as show below resolved the issue....

G-Code commands supported by Marlin

November 29, 2012 · claude 3D Printing GCode Marlin

The G-Code commands supported by Marlin 3D printing firmware are:

Enable the TRIM command on Mountain Lion for SSD drives

November 3, 2012 · claude Mountain Lion MAC OS X

To know if TRIM is enabled for a particular drive, open "System Profiler" and search for the "TRIM enable" information in the "Serial ATA sub-tree". If TRIM is not enabled, the easiest way to enable it is to:

Building a Prusa Mendel Iteration 2 3D Printer

October 4, 2012 · claude 3D Printing

It is not obvious to choose and get a 3D printer. There is quite a lot a choices on the market which can be divided in two categories: pre-assembled and kits. Pre-assembled printers are expensive. Kits can be a quite a challenge to assemble as per...

Ralink RT5572 based WiFi Usb Dongle setup on Ubuntu 12.04

September 2, 2012 · claude Ubuntu 11.10 Ubuntu 11.04 Ubuntu +5

The WiFi USB dongles based on the newest RT5572 chip set do not work out of the box on Ubuntu. Unex DNUR-V72, D-Link DWA-160 Rev B and TP-Link TL-WDN3200 dongles are based on this chipset. You will need to compile the source code of the driver to...

2.4 GHz WiFi channels

August 16, 2012 · claude WiFI

| | | | --- | --- | | Channel | Center Frequency (GHz) | | 1 | 2.412 | | 2 | 2.417 | | 3 | 2.422 | | 4 | 2.427 | | 5 | 2.432 | | 6 | 2.437 | | 7 | 2.442 | | 8 | 2.447 | | 9 | 2.452 | | 10 | 2.457 | | 11 | 2.462 | | 12 | 2.467 | | 13 | 2.472 | | 14 |...

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