|
Aluminium or Thinwalled Steel tubing for OTA Tube
I've been Googling for a supplier of tubing to build my 102mm SurplusShed refractor. I looked at PVC again but nothing in the standard sizes will fit and I'm a bit dubious about using it for a 900mm FL as its inclined to sag with a bit of heat. Only supplier I found in Aus only had 80mm ID Aluminium tubing. Can anyone suggest a place I could get something nearer 100mm.
Bill
|