Author: <span>robin</span>

3D-Printing

Covid-19 & PETG

  • 2020-06-012021-03-13
  • by robin

During Covid-19 times a lot of people tried to create protecting face masks or face shields. Though PLA is intoxic, several tests showed critical behavior when being used for protection wear. Main issue are the sharp edges when breaking the brittle material.

SARS-COV-2 Credit to Credit: NIAID-RML

PETG was said to be less brittle and just as printable as PLA. So I gave it a shot.

PETG whistle

For first steps I tried to proof the printability of PETG by printing simple whistles, which worked out very well.

3D-Printing

First CAD-Models

  • 2020-05-032020-09-20
  • by robin

Designing suitable CAD-Models comes along with 3D printing. First CAD-Models were made and (despite some measurement mistakes) did work out very well using FreeCAD and some youtube tutorials.

3D-Model including the domain roaler.org

This designed prints were still printed in PLA.

3D-Printing

First Prints

  • 2020-04-302020-09-20
  • by robin

The Auto-Calibration was succesfull, but first prints did not work. After setting a the first-layer a lot closer (0.8mm) to the heated bed things started to look better. Even a very good looking Benchy was printed without any Error.

Batman Logo with a good first layer calibration (Downside-Up)

Fist Steps were done using PLA (Prusament & Maertz).

3D-Printing

Construction

  • 2020-04-292020-09-20
  • by robin

The DIY-Package just arrived. Assembling the Prusa i3 mk3s was fun and worked quite well. In reasonable estimated 8 Hours I was able to understand principles of the Assembly and Setup of a FDM Printer

Construction of the DIY Package with

History & Tech Blog

2020-04

  • 2020-04-182020-04-20
  • by robin

The new server is a Dell Latitude E7270 with a i5-6300U, 8GB Ram, 256GB SSD with even lower energy consumption (8W idle, Screen off)

The Data from the old EEE PC was transfered to the Dell. without any Problems. A Postgres DB with nextcloud and mysql with this wordpress was added. It went online 2020-04-01.

The old Dynamic DNS is still available, but it now links to the new TLS/SSL encrypted .org Domain.

History & Tech Blog

2020-03

The End?

In Covid-19-times some Problems appeared. The Hardware had become too slow to work properly with the software and it took hours to boot. New Hardware was needed.

The server was updated to Ubuntu 18.04 LTS and some problems were fixed.

The old hardware was taken offline after > 60 000 hours online time.

History & Tech Blog

2014-2016

  • 2020-04-182020-04-18
  • by robin

The functionality grew continously. The server was used for different live saving jobs (git backups etc.) and became accessable via SSH. A mysql database was added and a password protected Xray-wiki http://roaler.org/dokuwiki was added. (Ubuntu 14.04, 14.10, 15.04, 15.10 & 16.04)

History & Tech Blog

2013

  • 2020-04-182020-04-18
  • by robin

The project “online” started with this simple netbook (Asus EEE T101mt). In 2013 the netbook became too slow to work with, but too good to throw it away. The Low Energy Consumption (11W idle, Screen off) and the low price resulted somehow in setting up a server. (Ubuntu 13.10)

In November 2013 a simple Apache Ubuntu Server went online on the DynDns http://roaler.no-ip.org (available at least until 2020) only for fun and to test the reliability of the EEE-Pc

History & Tech Blog

2010

  • 2020-04-182020-04-18
  • by robin

First Steps in Ubuntu/Linux on the reasonable priced Asus EEE T101mt

Running a Intel Atom N450, 1GB Ram & 320GB Hdd (cheap 2,5′ model)