Olafsen – Tech and more : Main

2024-09-17, 14:18

Estimation of lead contamination in 3D printed parts

Will lead from the nozzle make 3D printed parts non food safe? (page last modified 2023-08-04, 09:49)

Check of Calibration of Cheap Temperature Humidity Sensors

Comparison of readings from common Chinese sensors with a reliable reference (page last modified 2023-07-23, 22:52)

Automatic power off of a Raspberry Pi

How to power off the system after shutdown (page last modified 2022-01-01, 23:41)

Maximum flowrate calibration

How to know the limits of the hotend (page last modified 2021-02-19, 13:36)

PID tuning extruder

(page last modified 2021-02-16, 23:49)

PID tuning bed

(page last modified 2021-02-16, 23:48)

Calibration of a 3D printer

List of the steps and of the requirement of each step (page last modified 2021-02-18, 10:13)

Index of the 3D Printing section

(page last modified 2021-02-17, 00:21)

Current consumption of the Kobo Libra H2O

Measurement of the current consumption in different modes (page last modified 2023-07-23, 21:57)

ESPhome-Controlled Power Strip

Integration of a power strip with Home Assistant using a ESP8266 and ESPhome (page last modified 2019-11-20, 00:22)

Repair of a Senseo

Broken hinge (page last modified 2017-09-06, 21:55)

Duplicate File Finder for UNIX

POSIX-compatible script working also on FreeBSD (page last modified 2017-01-02, 13:05)

Output Impedance of Nexus 5X

Estimation of output impedance of the final audio stage (page last modified 2016-11-10, 00:53)

Comparison Jack for Senheiser and KRK Headphones

Senheiser HD598, HD558, HD518, HD595 and KRK KNS-8400 (page last modified 2016-08-29, 22:43)

FIAT Panda: cleaning of seat covers

Cleaning of the seat covers in the laundry machine (page last modified 2015-08-29, 15:33)

FIAT Panda: Zandvoort, 2015

Track days in Zandvoort (page last modified 2015-08-29, 15:23)

FIAT Panda: Rock Wool from the Exhaust

Running on three cylinders and destruction of the muffler (page last modified 2015-08-29, 15:23)

FIAT Panda: USB phone charger

Building of a panel with a USB charger for the phone (page last modified 2017-07-19, 01:45)

FIAT Panda: Internal Lights LED

Replacement of the light bulb for the internal light with a LED strip (page last modified 2015-08-29, 15:22)

FIAT Panda: Photos and Customisation

Photos and customisation of my Panda 1993, first series (141A) (page last modified 2015-08-29, 15:20)

OmniOS: Automatic Snapshots with Znapzend

Automatic generation and deletion of snapshots (page last modified 2016-11-06, 00:07)

OmniOS: Netatalk with PAM Authentication

Use of the same passwords for AFP and local users (page last modified 2015-04-20, 09:37)

OmniOS: Installation of HTTPi

Configuring a local lightweight webserver for various purposes (page last modified 2015-02-01, 19:17)

Measurements of DC-DC Converters

Oscilloscope tests to check shape, ripple, accuracy (page last modified 2018-01-06, 23:57)

OmniOS: Two-Factor Authentication

Installation of Google Authenticator for more secure logins (page last modified 2018-11-22, 06:47)

OmniOS: Postfix And Stunnel

Setting the system to send email to the outside world (page last modified 2015-09-19, 00:52)

"Due scintille di luce nel buio della guerra" (Two Sparks in the Darkness of the II World War)

(page last modified 2014-01-12, 14:45)

A modified bin lock for VR100

Design of a better lock for the Vorwerk robot (page last modified 2015-01-19, 23:51)

OmniOS: Installation and Basic Setup

From the CD/DVD to the working system, no extras (page last modified 2018-04-02, 17:07)

OmniOS: The Hardware

Choice of the components and BOM (page last modified 2015-02-02, 00:32)

Why a NAS and Which One

Why storing data on a dedicated device and available alternatives (page last modified 2013-11-09, 20:31)

OmniOS: How to Install TransmissionBT

Compilation and install: steps required and solving issues (page last modified 2015-08-15, 21:03)

An OmniOS ZFS Fileserver

Total security for the data and best flexibility for future expansion (page last modified 2015-02-02, 01:03)

Homemade Brass Keychain

Description of the making of a brass keychain with the etching method. On the keychain there is the name of the owner and a QR code (page last modified 2014-07-27, 21:04)

Berlin and the Jahrestagung Kerntechnik 2010 (2/2)

Photos taken in Berlin during the days of the Jahrestagung Kerntechnik 2010 conference (4th-6th May 2010) and in the following week-end. (page last modified 2013-09-26, 22:55)

Berlin and the Jahrestagung Kerntechnik 2010 (1/2)

Photos taken in Berlin during the days of the Jahrestagung Kerntechnik 2010 conference (4th-6th May 2010) and in the following week-end. (page last modified 2013-09-26, 22:55)

Hohenzollern Castle

Visit of the 25th April 2010 to the castle in Echingen (page last modified 2013-09-26, 22:54)

Athens March 2010 (3/3)

Pictures taken in Athens in the days 7-12 March 2010 during the stay for the conference IM 2010 (page last modified 2013-09-26, 22:54)

Athens March 2010 (2/3)

Pictures taken in Athens in the days 7-12 March 2010 during the stay for the conference IM 2010 (page last modified 2013-09-26, 22:54)

Athens March 2010 (1/3)

Pictures taken in Athens in the days 7-12 March 2010 during the stay for the conference IM 2010 (page last modified 2013-09-26, 22:54)

Easter 2010

Photos taken on the 4th April 2010 in the park near home. (page last modified 2013-09-26, 22:54)

Photos of the Black Forest

Photos taken on the 2nd April 2010 in the Black Forest (page last modified 2013-09-26, 22:53)

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Photos

Photos I took (mostly) (page last modified 2009-11-21, 18:06)

Oscilloscope with an audio card

Description of a circuit able to feed signals into an audio card and to use it as oscilloscope (page last modified 2014-02-16, 00:23)

Photos of Bratislava, 2009

Some pictures taken in Praga, 11-13 September 2009 (page last modified 2013-09-26, 22:53)

Photos of Bratislava, 2009

Some pictures taken in Bratislava during the ICRM conference, 7-11 September 2009 (page last modified 2013-09-26, 22:53)

Photos from the Arena of Pop, 2009

The best pictures from the festival held in Mannheim, 11 July 2009 (page last modified 2013-09-26, 22:53)

Week-end in Stockholm (2/2)

Photos taken in Stockholm during the week-end 15-18 May 2009 (page last modified 2013-09-26, 22:53)

Week-end in Stockholm (1/2)

Photos taken in Stockholm during the week-end 15-18 May 2009 (page last modified 2013-09-26, 22:53)

Dresden and the Jahrestagung Kerntechnik 2009 (4/4)

Pictures of the city of Dresden and of the annual meeting on nuclear technologies 2009 (12-14 May 2009) (page last modified 2013-09-26, 22:52)

Dresden and the Jahrestagung Kerntechnik 2009 (3/4)

Pictures of the city of Dresden and of the annual meeting on nuclear technologies 2009 (12-14 May 2009) (page last modified 2013-09-26, 22:52)

Dresden and the Jahrestagung Kerntechnik 2009 (2/4)

Pictures of the city of Dresden and of the annual meeting on nuclear technologies 2009 (12-14 May 2009) (page last modified 2013-09-26, 22:52)

Dresden and the Jahrestagung Kerntechnik 2009 (1/4)

Pictures of the city of Dresden and of the annual meeting on nuclear technologies 2009 (12-14 May 2009) (page last modified 2013-09-26, 22:52)

Pictures from the lake of Constance

Pictures of the lake, 25 April 2009 (page last modified 2013-09-26, 22:51)

Pictures of Light Bulbs

Pictures of two different light bulbs (page last modified 2013-09-26, 22:51)

Match Karlsruhe - Frankfurt, 21 February 2009

Pictures from the match (page last modified 2013-09-26, 22:51)

Pictures from Francesco

(page last modified 2009-05-02, 19:55)

Canoo.Net Widget

Widget to make searches on Canoo.Net from the Dashboard of Mac OS X Tiger or later (page last modified 2013-09-26, 22:56)

Olaf Marzocchi

Personal profile and curriculum of Olaf Marzocchi (page last modified 2021-02-18, 10:23)

Images from my old website

Images gathered in the old forum of Macity and then posted in my old website. None of them is by me. (page last modified 2009-05-03, 12:22)

Links from the Web

Some interesting links found on the Web (page last modified 2009-05-01, 23:56)

Opening and Repairing a Palm Vx

Steps to open and repair a Palm Vx whith a dead backlight IC. (page last modified 2013-09-26, 22:41)

A Bad Experience with eBay

Description of what happended when I tried to buy an object from the USA (page last modified 2013-09-26, 22:48)

Simulation of the Air Flow Inside an Olidata Computer Case

Results of a simple simulation of the air flow inside a computer case, executed with FlexPDE. (page last modified 2013-09-26, 22:48)

Cleaning of the keyboard of an iBook

Pictures of the disassembly and reassembly of the keyboard of an iBook (page last modified 2013-09-26, 22:41)

Vehicle Flux in a Road or Highway

Vehicle flux in a road or highway as function of distance between cars and speed limits (page last modified 2013-09-26, 22:46)

Pictures of the 4th March, 2007 lunar eclipse

Pictures of the 4th March, 2007 lunar eclipse, taken from Cesena (page last modified 2013-09-26, 22:50)

"I babin i fa sol dl'acqua" (Children Pee Only Water)

(page last modified 2014-01-12, 13:14)

X-Logo

An AviSynth/VirtualDub filter (page last modified 2013-09-26, 22:56)

Tales from the past

Tales that our parents, grandparents and so on narrated us. (page last modified 2014-01-12, 13:11)

Brumbrum Meeting in Salzburg, page 4

(page last modified 2013-09-26, 22:50)

Brumbrum Meeting in Salzburg, page 3

(page last modified 2013-09-26, 22:50)

Brumbrum Meeting in Salzburg, page 2

(page last modified 2013-09-26, 22:49)

Hard Disk Noise Reduction

Description of a way to reduce with some rubber the noise generated by hard disks. (page last modified 2013-09-26, 22:40)

Application of a Heatsink on a Hard Disk

Cooling an IBM 60GXP with an heatsink (page last modified 2013-09-26, 22:40)

Prodi Superstar

Video of Prodi speaking in "english" at the CNBC (page last modified 2017-12-19, 23:19)

Brumbrum Meeting in Salzburg

(page last modified 2013-09-26, 22:49)

The Etching of a Printed Circuit Board

Steps followed to etch at home with chloric acid and oxygen peroxide circuit board for electronic circuits (page last modified 2013-11-10, 16:53)

Index of the Hardware section

(page last modified 2009-11-21, 18:05)

Mouse and Joypad in Video Games

Comparison of the two input methods and hypotheses about why the first seems far better then the other (page last modified 2013-09-26, 22:39)