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There are a lot of commercially available “air caster pallets” or some such titled products as I’m sure you have found out. Made by several manufacturers. Not that low a profile. Quite expensive although you can find them used on e bay and elsewhere. Just
Google them up.
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<div class=""> Here’s a 36” x 36” x 2” for “cheap”.
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<div class=""><a href="https://www.ebay.com/itm/AERO-GO-4PI5NS-Air-Caster-Air-Bearing-Pallet-3-5T-Capacity-36-x-36-034-Lot-of-4-/272331489318" class="">https://www.ebay.com/itm/AERO-GO-4PI5NS-Air-Caster-Air-Bearing-Pallet-3-5T-Capacity-36-x-36-034-Lot-of-4-/272331489318</a></div>
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<div class="">We built bladder type air casters some years ago to move scenery. For reasons discussed on this list several times before we went to air lift casters, and/ or air actuated stops. Opened in 1988 and built with it in mind, our building has
big enough compressor and air supply to run air casters.</div>
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<div class="">DickA</div>
<div class="">TD, Cornell U<br class="">
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<div class="">On Oct 6, 2018, at 12:35 AM, jdunfee12--- via Stagecraft <<a href="mailto:stagecraft@theatrical.net" class="">stagecraft@theatrical.net</a>> wrote:</div>
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<div class="">I actually found a comparable product to what I am trying to do. But, it is no longer on the market. It is a mechanics creeper. Rather than wheels, it uses air to glide across the floor. I have found a few videos of it, but all have music
playing while it is in operation. So, I wonder if they are covering up rude noises?<br class="">
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<div class="">The Hover Creeper</div>
<div class=""><a href="https://newatlas.com/go/5933/" rel="nofollow" target="_blank" class="">https://newatlas.com/go/5933/</a></div>
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<div class="">here is a video, that gives you a brief glimpse of the underside at 2:10, 2:40 and 3:18.</div>
<div class=""><a href="https://youtu.be/U4CSH6vo5mA" rel="nofollow" target="_blank" class="">https://youtu.be/U4CSH6vo5mA</a></div>
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<div class="">It definitely uses the inflatable membrane approach, and uses two of them. Normal commercial air casters always say you must use at least 3 air casters. I think this is because otherwise you are in a situation like you are trying to balance
on top of a ball. A hovercraft vehicle may be able to get away with the single membrane, because it is not a single edge along the ground. Rather, it has some thickness around the perimeter. So, the inflated membrane is applying pressure along the perimeter.
The air escaping underneath it keeps it from making contact. An uneven load above does not cause additional loading on the ground, because the air maintains the same pressure all around.<br class="">
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<div class="">They used two circular membranes. The square commercial air casters also use a circular membrane, even though it is being mounted to a square plate. Yet, vehicles do not use a circular membrane. Rather, they use a slot-shape. I don't know why
this is the case.<br class="">
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<div class="">-Joe<br class="">
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