alternative
I used some metal conduit to make LNB side support arms for a small Ku dish, recently.
So, the same thought came to mind.
They were a lot shorter than you'd have on a BUD, and quite stiff.
However for the span you're talking about, I don't know if the strength to weight ratio would be appropriate.
So, if you determine that a piece long enough, and large enough to be stiff, would be too heavy ...
... there's also aluminum tubing available at the Home Depot type stores.
It's anodized, comes in various diameters, and is a bit more expensive, but for three or four pieces, maybe worth the one-time cost.
Just something to think about.
Regardless of the tubing selected, there's a question of bending it.
If you don't have a proper tubing bender, could you have it done at a muffler shop?
Might be cheaper than a machine shop.
Or, the muffler shop might have other materials and suggestions.
Worth an
ask. -
For the tube end where I attached to the dish, I did squeeze it flat, grind it off, drill a hole, and bend it to the appropriate angle.
If your dish has a different attachment technique, it might be best to duplicate it.
On the end where the support strut attaches to the LNB scalar (or scalar support plate), there are many ways in the many BUD pictues on the forum.
Here are two I like.
- commercial dish, in the
picture gallery of
McGuyver.
-
bracket/tab designed by
CadData, as seen in this picture by
PopCornNmore.
(
I've built the tab, and it's easily adjustable)