Weather Station with Arduino

I wanted to do this since a long time and finally i did it, i built a small and simple weather station. It uses an Arduino Uno with Ethernet-Shield, a DS18B20-Sensor for the indoor temperature and a Adafruit HTU21D-F for outdoor humidity and temperature and sends the measurements via http to a php script which writes them in a .json file.

As a enclosure i printed this awesome Radiation Shield in ABS and coated it with some epoxidy to make it more durable.img_2749

Code and detailed instructions avaibale at GitHub.

The Lulzbot Mini 3D-Printer

So.. i got a third printer. Not that i needed one but i wanted one. Something small but powerful with the ability to print any material. After some research i found the Lulzbot Mini and immediately fell in love. Not only can he do all i want, he even has automatic bed leveling and is completely open source. Not only the software also all the specs for the hardware are available and licensed under GPLv3/CCBYSA4.0.

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The Lulzbot Mini, printing a tool holder for itself.

The detail of engineering is amazing. The autolevel functions with the nozzle and the metal-pads on the side, when they touch, a circuits closes. To make sure it can touch, the nozzle gets cleaned before leveling on a small pad at the back of the bed. There are holes in the top and the side of the metal case to mount cameras and RaspberryPi’s, you get a lot of tools with it, there is a handle to carry it around, the filament holder can be flipped down.. everything about this printer feels really well thought through.
The Mini has no display, but that’s no problem, at least for me, since i’m using OctoPrint anyway.
I can only recommend this printer for everyone who wants a easy but awesome printing experience.
One thing I didn’t like: the printer is really loud. I measured it with my iPhone (not really accurate i guess) and came to 70-80dB which is as loud as a loud conversation. But there is an easy fix, install a damper on the Y-Axis-Driver. There is a Open Hardware Assembly Instruction available from Lulzbot. This damped it down to about 60dB (as loud as a normal conversation) but feels like at least half as loud.

My Setup

All the mods installed.

All the mods installed.

My 3D-Printer setup

LulzBot Mini

All about the Mini in this post.

Wanhao Duplicator i3

The Wanhao Duplicator i3 is a 3D-Printer with the capability to produce a fantastic quality for a low price. To archive that, some mods are required. I listed the mods that changed the print quality significant below under “mods” and some other cosmetic and comfort stuff under “Additions”.
I tinkered quite a bit to get the most out of the printer and i had to disassemble the extruder more than a few times because of some clogs or stuck filament. If he is printing he does a really good job.
I totally recommend the Wanhao i3 as a beginner printer. While modding and fixing things you learn a lot about how it works.Photo 30-04-16 11 37 32Photo 30-04-16 11 36 58


Mods

Additions

Forge-Bot Delta printer

A friend of mine is a talented engineer and build his own 3D-Printer, a Delta inspired by the Kossel-Printers.
It’s a well build machine wich is capable of printing with 80mm/s and still maintain good quality.

You can read more about the printer on his Website: formgeber-3d-druck.de

IMG_2373 Wanhao i3 and the Forge-Bot on my nice Ikea cupboard.

3D-Printed 60% Case

I got a 3D-Printer. Probably the reason why it was so quiet here. It took a lot of work to get really good prints out of it but finally i’m there, i will make an extra post about the setup and the printer.
Because my Gh60 is still missing a case (i didn’t had the time to build the wood one) i printed one and it came out great.
My printer has a bed of 20×20 cm so i needed to cut the case in half to be able to print it. It still looks alright though.
Because i like heavy keyboards sticking to the desk I will add small metal-stripes in the case so it gets heavier.

You can find the design files here: http://www.thingiverse.com/thing:983332.pokcer_case_1pokcer_case_2