Speaky riser board
March 17, 2013 at 05:08 AM | categories: hardware, amateur radio
March 17, 2013 at 05:08 AM | categories: hardware, amateur radio
March 15, 2013 at 04:50 PM | categories: hardware, amateur radio
Yesterday I did some work on my speaky. I soldered together all the remaining Band modules and put them on a raiser board which fits into the Box.
Seriously I do not know how this will work on the HF side, mechaninally this is not a problem because the Box is much bigger than needed due to the frequency counter.
You need to do some cleanups to bring all the modules in.
The plug for the freq dialer must be grinded down a little bit. The whole Mainboard
must go 4 mm lower what you can do by grinding $45^\circ$ angles into the metal cubes
what enables you to leave the spacers away.
Test will come in a few weeks.
March 15, 2013 at 04:27 PM | categories: dieselbike, ratbike
March 05, 2013 at 03:21 PM | categories: dieselbike, ratbike
during some web research I found which
is basically a javascript which can format LaTeX Formulas on your website.
Let's test:
$$ U=\sqrt{P \cdot R} $$
all right.
March 03, 2013 at 07:11 AM | categories: hardware, amateur radio
February 23, 2013 at 02:21 PM | categories: hardware, amateur radio
Hi there,
during the last year I developed a command line calculator in python which can calculate numbers with uncertainties.

The Tool is also capeable to interperate with LaTeX doing python calculations within a
\begin{calc}
...
\end{calc}
environment. Finally you can set your results rounded to two significant digits directly into your LaTeX formulas by using
$\val{foo}}\approx \val[1]{bar}$
You can find out more on the project website: http://www.nawi.at/~zem/texcalc
February 12, 2013 at 11:18 AM | categories: code, misc, software
Most of the time. ;-)
you can easily forward a remote git repo to github by using a send hook:
(
PATH=$PATH:/usr/local/bin
LOG=/dev/null
unset GIT_DIR
cd /home/zem/devlocal/phunivie
git pull origin master
git push -u github master
)
git remote add github git@github.com:zem/texcalc.git
June 05, 2012 at 11:26 PM | categories: dieselbike, ratbike, rideout
This is the gallery of my rideout to the Rat&Survival Bike Show and the Big Knock Dieselbike Ralley 2012. Have fun!
Watch Gallery!
May 12, 2012 at 09:15 PM | categories: dieselbike, ratbike
Here a video of the first testrun of my Kubota D950
Unfortunately it burns oil on two cylinders, the water pump does not work and the crankshaft bearing is gone after the run. So it will take a few weeks more to get my second diesel bike on the road.
April 20, 2012 at 09:46 AM | categories: dieselbike, ratbike
The first set of pictures shows one of the exclusive Ural dry-enddrives in good shape. Those drives are dry to prevent oil from dripping on the street. Even if you fill in Oil to them, it will last for 20000 km until the bolts of the cover getting lose and the oil will leak out. You can drive another 10000 km when that happens.
The next set shows another end drive which has some serious cracks in its cover, so it ist useless until I figured out a way to get that fixed.
After I found some slightly useable parts I failed to mount a new enddrive ratio, the cover is not closing, I will write more about that when I know whats going on with that transmission:
Finally on the investigation of the Kubota engine I want to show you a short video of the Injection pump:
March 13, 2012 at 09:51 AM | categories: hardware, amateur radio
One of my current projects is to build a proper antenna system for HF amateur radio bands on the top of my lorry...
After it is almost finished I must admit that this was more complex than I thought. So I will soon write down my Experiences into 3 threads:
December 12, 2011 at 12:09 PM | categories: hardware, dieselbike, ratbike, rideout
November 13, 2011 at 10:27 PM | categories: hardware, misc, ratbike
This weekend I made a huge Inspection on my GS500E when I discovered that the Valve playing on my left exhaust valve was gone. Unfortunately this was the one with the 215er Shim which is the smallest available.
I think the cylinder head is dieing, since the valve is digging deeper and deeper into it. Which is the cause of a lack of
service a few years ago. But why not grind those shims down, drive another 20000 km?
This is how I did it. First I drilled a 2 mm hole with a forstner drill into a piece of wood:


Then I angle grinded one side of the shim down. Being careful not to overheat the shim. When I had the right distance, I finisched it with a sander. I put the grinded and sanded side to the bottom, so the cam can pusch on the original side.
I don't know how long this will last, but I hope it is better than doing nothing until the engine breaks down.
November 13, 2011 at 10:03 PM | categories: dieselbike, ratbike, rideout
November 04, 2011 at 11:06 AM | categories: dieselbike, ratbike
I must admit, that those Russian drum brakes are not as relieable as i want them to be. Every 2000 km you have to adjust the cable tunings, every 1000 km you have to exchange the cable and also the steal within the aluminium drums is going very thin through the years.
So the cheapest and most propper way to get a better front break on your iron cluster is, to get a hub with a disk and build on the bike. That is what people told me. So I startet a search on several online services and found this for 15 bugs on willhaben.at :
It is a 19" wheel. I think it is propably from a Honda CB550 or CB750. So the first part of the new diskbrake system is there.
September 29, 2011 at 07:10 AM | categories: dieselbike
When I am thinking about new constructions I fell over a picture on Flickr:
http://www.flickr.com/photos/motorat88/3001232147/
This is a ruggerini RD210 engine with a centrifugal clutch I can't see any gearbox on that conversation.
September 29, 2011 at 07:03 AM | categories: dieselbike, ratbike, rideout
Since the International Diesel Ralley in Hamm came this year again, I finally assembled my Diesel Bike, did 10 km testride and then I rode to the Ralley.
There is a Gallery on Flickr since I forgot my camera on the sofa:
http://www.flickr.com/photos/13755101@N03/sets/72157627482397253/
after the ralley I traveled to my dads home for two weeks.
When I was back in Vienna the Spedo says about 3000 km. The Gas cable broke and a Light bulb. Also there are some small oil leaks on the Gearbox I have to investigate. I also need a new Airfilter to get the noise levels down.
http://www.flickr.com/photos/wizard23/6176690563/
September 29, 2011 at 06:40 AM | categories: truckbuilding, wagenplatz
Here is the gallery of my clutch repair work. The clutch take out bearing and the Pilot bearing was broken, so I had to move the gearbox 50 cm to the back, exchange the parts and build everything together again.
When you do that work, it will not be bad if you exchange the clutch and the crankshaft seal as well.