Help on Equatorial Platform for 12" Revelation dob

[Astrobob1973]

Would it be too much to ask that someone could calculate the measurements of the North and South Bearings for me? I've used 2 different calculators so far to figure out the length and height needed to complete the bearings but as always... they both show different measurements.

I Would like to Thank Moonshane for the offer of help.

The AMOUNT of information out there is great, however its the little things that are never answered. Building a drive system is the least of my worries and it seems like wherever I go there is 75% on building a drive system and 25% on the platform itself. Isn't there a site out there that says, "I've got this scope, with these measurements and I cut my north bearing to 58.02" with a height of say 4.1" and the South Bearing was cut to these dimensions......" Yes I know that it differes based on Lattitude but there have to be some constants involved. Buying a platform at the moment is simply out of the question right now.

[Astrobob1973]

Guess is was much to ask !!

[Beulah]

I'll move this to the DIY section, as it isn't really a beginner's topic. You might get some more help in the relevant section.

[SniffTheGlove]

Astrobob, I have just read your message. I built my EP the same time as Shane but went down a different route.

My EP is a North bearing segment with south bearing pivot design. I spent many months doing the math and you can down load my spreadsheet from my EP build thread http://stargazerslounge.com/diy-astronomer/125588-build-project-dob-equatorial-platform.html

I use the platform everytime I go viewing and use it for visual and webcam work and it works great.

The only issue is that the platform is slightly longer than I imagained so it's a bit tight in my obsy.

Hope the spreadsheet help and my build thread, any questions then just ask.