I dug a hole and put in a box form 2' cubed. I had my conduit for power and three 10' sticks of rebar down into the ground, through the cube to near the top of the pier. I used just under a yard of concrete for the base and the pier. One thing I did do was separate the pier from the pad. You can get the basic idea from my gallery on the slas site. http://www.slas.us/gallery2/main.php?g2_itemId=3177 ________________________________ From: "erikhansen@thebluezone.net" <erikhansen@thebluezone.net> To: Utah Astronomy <utah-astronomy@mailman.xmission.com> Sent: Mon, May 10, 2010 9:44:47 AM Subject: Re: [Utah-astronomy] Kicking tires eerrrrrrr piers
How deep is the pier sunk in the ground? I initially filled in the area around the pier with gravel, but I have since filled it with concrete for a few reasons.
Excellent Dale, just excellent.
If it's not too late, fill the pier with pea gravel. NOT concrete. The vibrations will disappear completey even at high power.
On 5/9/10, Dale Wilson <dalel2112@yahoo.com> wrote:
As we were viewing M81 & 82, the guys started kicking the pier to see how well my design dampened vibrations. With the 40mm super-wide angle in my 10" lx200gps, the kicks were almost absent. It wasn't until I boosted up to 125x that the vibrations could be really seen. Even then, they subsided almost instantly.
_______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php Visit the Wiki: http://www.utahastronomy.com
_______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php Visit the Wiki: http://www.utahastronomy.com