Hi Greeps and welcome
These links might help.. in particular Peter Rix on the groups has made a VNS dual axis, and Tom Freneo has done a lot of work documenting his work and others work also. They are the two guys i would seek help from
This is a Yahoo discusion group about such platforms.
http://groups.yahoo.com/group/eqplatforms/
A couple of guys there are have made excelent progress on dual axis and also adding autoguiding.
Platform 101
Chuck Shaw with a rundown of his and the basics.
http://www.atmsite.org/contrib/Shaw/platform/
D'autum EQ platform.
http://f4.grp.yahoofs.com/v1/0NkgRHf...le/dautumn.pdf
David Shouldice D'autum platform
http://members.tripod.com/denverastr...le/dspfile.htm
Photos of Peter Rix VNS Platform
http://ph.groups.yahoo.com/group/eqp...os/browse/3d77
This is based on the following
Greg Baraf's mathamtics of VNS
http://f4.grp.yahoofs.com/v1/0NkgRLE...o2IUzU/VNS.doc
Excel sheet for design using forumales from above
document done by Tom Freneo
http://f2.grp.yahoofs.com/v1/0NkgRJq...y%20Baraff.xls
Tom has also made an Autoguide option.
In total the above thre VNS documents allow the design
of the platform as shown in Peter Rix's photos. As
well as resemble closely to the comericialy made and
sold Tom O' Platofrms see
ttp://www.equatorialplatforms.com/
Astrophotography done using Tom O's platforms.
http://www.equatorialplatforms.com/images.html
Regards hope it helps.
Netwolf
PS: If your building one maybe you can build two
