Constructing a dob

Michael,
Have you seen this add on astromart.
www.astromart.com/classifieds/details.asp?classified_id=511852
they make custom truss dob parts, might prove useful.

if you want to make a very stylish and unique Dob, have a look at
www.astromart.com/classifieds/details.asp?classified_id=512711
very nice !

and check out the largest portable dobsonian in the world, a 42" !!
www.cruxis.com/scope/scope1070.htm
imagine the views through it !!!

Was cutting the second ring for the secondary cage when the "bit" (don't know the technical term for them cutting blades :oops: ) in the router broke. Made a dash to B&Q and bought what appeared to be a standard size one - 1/4". Came home and found it was too small.

Told you about the bits! Now that you bought the router Mike, get yourself a router bit set. If you thik you're going to use more of it during your construction using the marine ply, buy a couple pieces of the same bit you're going to use.

Seanie.

and check out the largest portable dobsonian in the world, a 42" !!
www.cruxis.com/scope/scope1070.htm
imagine the views through it !!!

:shock:

Set your sights on the goal boys!

Got the router sorted out this evening. Turns out the router came with a few sizes of collets (adapters to allow diffeent size bits). The new bit I got was made of tungsten carbide. Much sharper than the previous one and flew through the timber like a knife through butter. Second ring of secondary cage is now complete.

Went home yesterday and got my brother to weld up the steel frame of the mirror cell:

www.astroshot.com/Dob/10.jpg

This will allow me to finish off the mirror cell.

The bits and pieces are really starting to look like they're taking shape Mike. Your brother looked like he did a good job there.