Monday, October 26, 2009
New And Improved Mount Cover
TRASH CANS!
Using a 44 gal and a smaller 32 gal, I cut a 13” hole out of the bottom of the smaller can, allowing it to slip over the mount and pier. Then I set the larger can upside down on the smaller one, they fit snug together too. Drilled a few aeration and ventilation holes, used 2 bungee cords, 2 screw hooks to keep the wind from lifting them up and a hand full of zip ties and about an hour later I was done. Also, I felt the bottom of the larger can would collect a lot of water, so I used its lid to divert the water off.
About the time I finished up with my project, the rain moved in and it hasn’t stopped ever since. I sure hope its doing its job…
Friday, October 9, 2009
Sunday, October 4, 2009
AT66ED and a Full Moon...
M27
35x60sec. un-guided
AT66ED
EQ-6 (EQmod)
DSIc
M45
15x170sec. un-guided
AT66ED
EQ-6(EQmod)
DSIc
.5X Reducer
I hope to get perfect polar alignment soon. I'm very close East and West, but I need to spend more time making adjustments, especially North and South.
Clear Skies!
Concrete Telescope Pier Completed!
Although only taking a few week-ends to complete, it was back breaking work and I wouldn’t recommend doing this type of project alone like I did…
The first week-end was basically surveying the area, purchasing supplies, building forms and digging the footer. I spent quite some time determining the best permanent location for the pier, deck and eventually the observatory. I have many trees, a fairly steep sloped yard and a septic system, so my options were very limited.
Footer
Dimensions: 3’x3’x12”
The actual hole dug was approximately 3.5’x3.5’x2’
Pouring and mixing the concrete was by far the hardest part of the entire project. The footer alone took 13- 80lb. bags of concrete mix and being on a tight budget, an electric concrete mixer (I recommend to rent one) was not used, so every bit of it was mixed in a 2’x3’x1’ plastic tub, one bag at a time… About every 3rd or 4th bag I laid 24”x½’ rebar crisscrossed throughout the footer for added strength. Don’t forget to tamp!
Once the footer was poured, I took a much needed hour break to allow the concrete to firm up a tad before continuing with the column.
The 12”x4’ concrete tube and forms…
Pouring the column wasn’t any easier. I was definitely running out of steam by this time and the top of the tube was 3’ high! So now I had to mix the remaining concrete in the tub, then shovel it into a 5-gal. bucket and lift the heavy slurry up to pour. After every pour I used a broom handle to tamp the concrete. The column took 5- 80lb. bags. You can see I used several rocks to help keep the tube stationary and level. The last thing to do is set the anchor bolts and template in the concrete. The night before I marked a spot on the fence pointing north and used a string to align the template to that spot.
Time to cure and rest!
After 4 days of curing, I removed the forms. It’s a good thing I don’t rely on concrete pouring to make a living… You can see that there are voids throughout the pier. I’m not sure what I did wrong here? Luckily it’s just cosmetic, no where on the column did any concrete come lose from picking or prying at it!
Finishing touch!
I wasn’t too happy with the appearance of my new pier, so I decided to add a little decoration to its exterior. Using a concrete patch mix, I troweled on a stucco like finish.
After a couple of days to let the patch cure, I applied three coats of concrete water proofing paint.
Almost Done!
8’x8’x6” Treated Deck
This was the easiest part of the project and I won’t go into much detail. Basically its is a 2x6x8 frame lying on 8- 8x8x16 concrete cinder blocks and leveled. I used nothing but exterior deck screws, no nails.
Pier Completed!
I finished the pier and deck, but could not use it for another 2 weeks. A friend of mine took a little longer than expected to fabricate the mounting plate. It was free of charge, so I couldn’t complain.
Icing on the cake... My new pier is sporting my brand new AT66ED!
List of Materials
18- 80lb. concrete mix
1- 70lb. concrete patch
1- 1gal. water proof paint
1- 12” concrete form tube
12- 24”x1/2” rebar
3- 48”x1/2” rebar
3- 8” long anchor bolts, nuts and washers
3- Carriage head bolts, nuts and washers
3- 2x4x8 studs
1- 2x12x12 stud
16- 5/4x6x8 treated decking
9- 2x6x8 treaded studs
12- 2x6 stud hangers
8- 8x8x16 concrete blocks
2- 1 5/8” 1lb. deck screws
1- 3” 1lb. deck screws
Total cost for pier and treated deck $315.00 Imaging with 10min. subs and no star trails... priceless!
Clear Skies!