
Recent journal entry:
Hey folks...not much text here, just a snapshot of my mind...

(if anyone knows this image from dA, please tell me...I want a print)
Coming up:
Legend:
Recent updates and prints:
-none-

Personal favorites from my own gallery:

macro / conceptual macro / astro

weather / macro / abstract macro

3D / astro / abstract macro
Special feature: our gothic-rock band "The Lost Notes"!
(hail to Nina Stiller for taking the shots!
You know, there are times you have to be serious...

...and there are times you have to be...hmm...less serious, I guess

(click on the images to enlarge)
My top favorites from friends and other artists!
(if you like what you are seeing, you should check out their galleries)

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Featuring own animation projects:
This is an animation I made for the trailer of a movie, it's reduced in size (0.5x) and the compession is very strong (XviD quality 89) so the image quality is terrible...you need a DivX codec to run it but I'm sure you already have this

12 inch project:
This is a 3D-model of the desing I use for the tube, I will enhance this model while making progress whith the project:

I used a very similar design with the 8 inch tube. It's not optimal for bigger telescopes because the long main trusses are straight - if the whole tube was shaped more like a diamond, it would be more stable but it's very difficuld to build such constructions. It perfroms great in 8 inch size...let's see how it will perform in 12 inch size!

This is one of the long middle trusses. It's length is 1085 mm. I cut it manually with a deviation of +-0.25 mm using the tools you can see on the image, that requires some experience (especially to file the correct angle at the ends to achive this zigzag pattern you can see in the animation). Unfortunately I have no milling machine for that.
The material is aluminium, I cut it from a 2000 mm x 25 mm x 25 mm piece. the rest of each piece can be used in the future to cut the shorter trusses from it.
8 main trusses are needed, currently I have only 6 of them.

This is the drill I'll use to drill precisely...it's a very cheap one (about 43 $), but it's sufficient. Using a vice is a great help.
Material listing:
6x 25 mm x 25 mm x 2000 mm aluminium pipes.................................about 124 $
screws with nuts (100x), M5x40 mm..............................................................11 $
[these small metal discs which are to put between screw and truss] (250x)...7 $
8 inch project:
I'll cover the grinding of a mirror later when the 8 inch mirror is finished and I'm going to grind the 12 inch mirror. For now, I give just short updates about the status of my 8 inch Newtonian and the mirror which I'm working on at the moment.

This is the wannabe mirror for my 8 inch newtonian. To the left you can see the tool which is for grindidng it. Yes, ist made out of ceramic tiles and moltofill. However, it sucks...for the 12 inch mirror I will use a granite plate, this should be less complicated and there are less mistakes to make.
Belive me, with this ugly "rock" you can grind a mirror perfectly down to an acurracy of 5 µm - when using the right technique of course

...and if you wonder why I don't submit any new astroshots...this is the reason!!
I screwed up spraying it black because I skipped to undercoat the colour...dammit, thats the price for my ignorance, half of the colour fell off after a few days as if it never touched the metal and the other half adheres so strongly that I have problems brushing it off with a wire brush. Any ideas how to get it off without detaching the tube are HIGHLY appreciated!

Devious Comments