Tuesday, 11 September 2012

The central wing

Just a few more pics of the central wing of my glider

Monday, 10 September 2012

The plane, the plane. Master the plane

Recently I upgraded my mill to use a new 1W 808nm laser diode from that
which was removed from a DVD laser burner and I must say its great to
now be marking out my wooden templates for my scale glider at 200mm/min.
The old one just didn't cut it (no pun intended) as it could just barely
make it to 40mm/min.

Marking out now looks like

The problem here is that there were small gaps in the CAD DXF file and
so the laser stopped and burnt holes :(

Once that was sorted I continued and now have the central wing done, all
800mm, and have the remaining 3.2m to go.

I have also done the body frame and feel that I can now do wicker work
as well

Saturday, 1 September 2012

Revival of a Raspberry PI

One of my work mates had a ROI that had no working USB or network. He sold.it to me for a small sum.
So when I got home I started to investigate and forms plenty of info on the net about bad joints on the 25Mhz crystal that drives the net/USB chip.

A quick touching with a soldering iron fixed the issue.

I so found that the old "A" series jumper is on the board so that you can just place a pair of solder.shorts and get back to having a single USB port to work with