Sorry I didn't reply sooner, I've been distracted by other projects lately. Thanks for the compliment on the tracker. I'm not in a hurry to get this finished as it currently serves it's purpose delivering peak 4500 watts per hour faithfully from its stationary position. This summer I hope to have the slewing drives mated to their stepper motors (machining work) and I'll be ready to wire up the controller hardware etc. by then also. All of which is still collecting dust on a shelf. The design I drafted up is on ISMI Turbo Cad 3d solid modeler so it wouldn't be of much use as I didn't draft up any 2d drawings from the model as I could simply pull up the solid model and check my dimensions from it.
I might be able to draft up something later, though some of the dimensions are customized to the panel dimensions and would need to be altered by someone wanting to replicate the build style for their own panels. The custom sizing is with respect to webbing position on the truss and the obvious over all frame seating dimensions but also the counter weight calculations would need to be altered also. There's a great deal of welding, plasma & band saw cutting and drilling involved. Not something I care to build again anytime soon.
My latitude is approximately 19.4946° N.
Thanks again Gabriel.
So others may understand what's up when reading all this. My latitude which is only around 4 degrees within the tropics still tallies up to reverse hemisphere tracking between summer sub solar events.
To sum it up for others reading this not yet up to speed on this aspect... as soon as the sun crosses that 90 degrees straight overhead within the tropics, the horizontal track then must work oppositely to your physical hemisphere tracking local. If at the equator that means half the year is northerly tracking and the other half the year is then southerly tracking. Most people on this forum won't encounter this issue because they live outside the tropics but for those who are located between the tropic of Cancer and Capricorn and want to track the sun... here's your heads up. No matter what type of system you decide to use for sun tracking, the cross over at 90 degrees straight up (sub solar event) will create a tracking issue unless the system is design specifically to accommodate for sub solar event tracking reversal. This would also be inclusive of the light chaser type trackers.