Posted 21 January 2011 - 11:00 PM
I'm thinking of DIY'ing a pier to replace the shaky AL-110 tripod of my GP. Hopefully that will stabilize it and get rid of the annoying tendency of the hub to twist about the legs which ruins my polar alignment.
My question is --- will aluminum work for the pier? of course steel will work but it weighs a ton. Will a 4" diameter aluminum schedule 20 pipe (3mm wall thickness -- schedule 40 is quite thick at 6mm wall thickness) be strong enough?
Posted 21 January 2011 - 11:49 PM
Posted 22 January 2011 - 12:02 AM
Posted 22 January 2011 - 12:20 AM
I am not going for a permanent pier, but something I can bring to observing sites. So filling it with sand etc. is not an option for me.. I'm only planning to put a rather small scope on it anyway (70mm WO + DSLR + autoguider).
Posted 22 January 2011 - 03:28 AM