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Notes from Dave... I designed this rather elegantly simple transport setup when Paul, our machinist, began complaining about the 13" Dob he bought from 'aperture-fever' and loved to use, but then it was getting harder and harder to move around a 110 LB telescope even in 2 parts like that of the Dobsonian nature. These transporters worked great for him. Even out a back garage door across a threshold and then a concrete patio ledge, you just pull it like a rickshaw, instead of pushing it like a wheelbarrow, though you can certainly do that too. The dual wheel setup on each pole allows real easy "turn on a dime" moving and this works well for precision placement both in a garage floor environment to roll out complete for a short spell observing, and also out in rough terrain like gravel or sod or hard-pack real-nasty dirt locations. Got the idea from some of the better office chairs we use here - the better ones have this dual wheel method used at each foot of a chair leg... it does work well... much better than any single-wheel could do!
Then we found out you can mount these with a little bit of gap under the wheels when the scope is resting on flat ground - then you do not even need to remove them to observe - the wheels are above the ground and you can swing around anywhere - they only engage the ground if you pick up the handles when you want to move. That was pretty cool, but there was more to it...
Another interesting benefit became clear when the handles are mounted in the reverse direction as opposed to the usual obvious 'from the rear' standpoint. When these are mounted with the carry handles at the eyepiece side where observing is done, they become a real nice long lever to move the scope in azimuth left-and-right. It became immediately easier to move the scope to track in the left or right direction by using the transporter handle instead of the scope tube! Especially when the scope tube is at the higher angles toward the zenithal UP positions. Then by golly, the handle of course moves along with the telescope rotation so is always out of the way, and acts like a guard for people (especially smaller children) to prevent them from bumbling into the tube assembly itself. I liked all of this beneficial bonus value stuff immensely, it's just not the kind of thing you think about when selling or purchasing a set of Transporters, but the simple extra benefits are certainly nice to have!
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