Ted Moores Rolling Jig

[marsbar]

There is a wooden Boat Vidio listed under "how-to" that shows Ted Moores and Joan Barrett rolling a launch using a neat jig that Ted designe.

http://link.brightcove.com/services/...ctid1378420943

I need think about rolling a 18' CC Holiday to work on the topsides in my bow-roof shelter. I only have about 4' of free space all around the hull. Plenty of vertical space. Here is a pic from a couple of years ago when I just began working on her:




Ted's jig looks like just the thing for me to use in my confined space. Does anyone have any detailed info on how to build and use this jig? Other rolling solutions within a bow-roof shed would also be appreciated.

Thanks,

Mark

[Steve Lansdowne]

The video shows the two circular supports around the boat mounted in tracks on the floor and perhaps some wheels to roll the circular supports against and keep the boat in one place. He may also have greased the outside of the circular supports and/or the tracks in which they sit. I suspect that a rope was used to pull the bottom of the hull in towards one side at the same time that the top of the hull was pulled toward the other side. Neat, but a lot of work for one job. You might email Ted at his Bear Mountain Boat shop web site to ask for details. He's a very friendly guy and likely could provide you with more details.

[MiddleAgesMan]

There is a brief glimpse of the casters that contain and retain the pair of discs as the boat is rolled. The hull appears to have been positioned so its weight stays near the center throughout the process. I'm not sure how that can be arranged but as long as you have some way to restrain it so nothing gets away from you 'twould be a pretty good solution for you, IMO.

[marsbar]

Yes, I see that quick shot of the floor apparatus. The wheels look quite thin, but also must be strong and resistant to bending. Any thoughts about how they are constructed, and of what?

[MiddleAgesMan]

I see them as off-the-shelf straight casters probably with modified tires. They appear to be mounted to the top side of a board. Rather than worry about counting on the casters to retain the plywood discs it would be easy enough to fasten 2 by 4s alongside the lower portion of the discs to ensure they can't move to the side and off the casters.

The hardest part to me seems to be the large plywood discs. They would have to consist of two sandwiched layers with offset joints. The openings for the boat have to be precise and well padded. And they would have to be strong enough to take roughly half the weight of your boat without distortion. Positioning them around the boat in such a way as to keep the hull's mass near-center throughout the rollover would be desirable but as long as you plan for some sort of reliable restraint to control the rate of the roll that shouldn't be a deal killer.

[Thorne]

You want to carefully consider the weight load on the casters, as many are not rated for more than 150-200lbs -- they are designed for use in sets of 4, after all. I'd be really tempted to add at least another one at the bottom of the ply disc's circumference.

Looks very cool, particularly if you routinely build the same boat and don't have to modify the ply discs.

[marsbar]

My CC has a 7' beam. That would mean I would have to create a wheel of plywood that is 8' minimum. The jointery of building the wheel seems to be quite challenging. Two thicknesses of 3/4' plywood hopefully would do the trick (that's a lot of wood). I sure wish we had more details of this. I'm a little embarrassed to call about it. Maybe Ted or WB could offer a set of plans for it? This could be an excellent article in WB to review various methogs/jigs for rolling a meduim size craft >1000 lbs in a confined space. Ted's is the most interesting I have seen so far.

[jerry bark]

i have seen advertised a "jig" made for doing frame restorations on old cars. it basically gets bolted to each end of the frame/car and then the whole thing rotates. you might google one of those up. try using "auto hoist" to find some possible suppliers.

should work great on a boat, the cost as i recall was around 1200, but i bet you could easily sell it to recover a good portion of that. heck, considering the cost of a foul-up that is not to bad even if it only gets used once.

aha! found it for you:

http://www.bestbuyautoequipment.com/...FQ8qIgod6WvEpQ

good luck,
jerry

[S B]

Hi, I'm not attempting to be rude here, just throwing my 2 cents in. I obviously don't have all the details on why you want a rolling jig, but if it is only to turn your boat over once or twice , isn't it possible to move the boat outside, flip it over and move it back into your shop to work on. Save you money and time.

[marsbar]

I have thought about carrying the boat outside of the shed, but my back yard is too small to even do that. Turning it in the shed is the best option.

[S B]

Next cheapest solution; buy a couple of pizzas and six packs and throw a 'turn my boat party.'

[S B]

Hello again, I was facinated with the problem of turning your boat in a confined space. The problem would appear to be quite simple but it wasn't. The rolling gig works well, but it is probably time consuming and expensive to make for a one time roll over. My best effort to date would be to build a temporary crib arround the middle of the boat and do a controlled roll. Build the cribbing in a hexagon or octagon shape out of 2x4 and bolts. Each face tangent to the hull's center of gravity. Some of the faces may be longer than others to acomplish this. Use bracing where ever possible. Move the boat to one side of the shed and roll one face of the crib, the flat spot should stop further movement of the boat When ready, roll another face and so on until the 180 is complete.

[Steve Lansdowne]

How about just putting wheels on the strongback, rolling the whole thing out the door, turning it over with help from friends on to an appropriately prepared surface on the strongback this would take some figuring), then rolling it back into the boatshop?