|
I hate to beat an old thread...
But I thought I give an update. Projects are never finished when you think
they are. Once you have built your project there always a lil bit of tweaking
to do.
The lil 8" truss dob works a treat, and I'm surprised that on repeated setup
you only need to tweak the collination. The only problem I really had was
mirror shift between horizon to zenith. So I installed a sling which has worked
a treat. I moved the counter weights from being cable tied to the tailgate
to bolted on the sides of the mirror box. The balance is good and is a little
bottom heavy near the zenith, I'm going to drill some holes in the counter
weights to tweak this.
I also have pretty much finished my parralellogram mount. Tweaks included
making milk bottle washers to the "L" bar on the tilt and pan axis. This has
made the action of panning around a one hand operation. I also need to
apply some sort of friction brake on the main arm since I extended it's travel
to about 80 degree, there are some weight issues at the extremes. I have an
idea how to fix this using a snatch block and cable and applying a brake to
the snatch block.
Images included of the two projects, along with the new owner Jake and
his truss dob.
regards,CS
|