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Old 02 August 2008, 04:34   #1
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Launching wheels DIY

Hi
Call me mean although I prefer thrifty,but has anyone made their own launching wheels?
I am sorry but I just cant see how they justify the ridiculous prices charged for these items.

After all its two wheels 5 at local market and some metal tubing (and of course some knowledge or inspiration).

So if anyone has any drawings or ideas I would like to give it a try.

ATB
Mike
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Old 02 August 2008, 07:44   #2
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I am with you on this one. I think the market is bending us all over the table with their prices.

I don't mind them making a profit, but it does have it's limits.
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Old 02 August 2008, 08:07   #3
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I made some for my first sib which were always bolted in the down position . Top spedd was not an issue with 3.5 hp ! And they were quite small size & only for my road/ tarmac to cover the 100yards to my local slip . Got fed up & bought the fold up 'pelican' type - much better till they snapped ( i ended up with them on an 310 avonwith 10hp on it !

My DIY ones worked but no way as good as 'proper' ones - spend the cash on rreal ones - worth everypenny ( but shop around & haggle anyway ! )
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Old 02 August 2008, 08:35   #4
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Thanks for quick replies.

I am pretty good with engineering projects and TBH I have heard loads of stories of the 100+ one snapping in use.

It is a question of two things. Design and materials. As I said the materials would cost next to nothing and I mean the stuff that would be more than adequate strengthwise.

So back to the question about design before I go to my local chandler and check them out.

As to worth it ,yes if you are not able to do this type of fabrication then maybe they are but to me its a rip off.

Anyone been successful with theirs.
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Old 02 August 2008, 08:46   #5
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Quote:
Originally Posted by mike13401 View Post
Hi
Call me mean although I prefer thrifty,but has anyone made their own launching wheels?
I am sorry but I just cant see how they justify the ridiculous prices charged for these items.

After all its two wheels 5 at local market and some metal tubing (and of course some knowledge or inspiration).

So if anyone has any drawings or ideas I would like to give it a try.

ATB
Mike
I suspect the wheels would cost you more than a fiver!!!

They are pretty large diameter and have rubber tyres not the vinyl type that some of the cheaper wheels have.

Shop around and you will get the wheels for about 95 - by the time you have messed around and bought the 316 stainless etc it isn't worth the hassle. Unless of course you intend to build a better product.

You mention them snapping but I think that's probably the smaller cheaper ones or people who are overloading them.

Mine are great - the only drawback with them is the amount of buoyancy in the tyres - it makes it very difficult to lower them and lock down before coming in.
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Old 02 August 2008, 08:59   #6
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This may be a little different from what you are looking for,, but I am looking at fabricating a launching/portaging wheel-cart system that can be quickly taken apart which straps under my hull between the hijacker tubes. The idea being to get the wheels directly under the center of mass of the boat and motor. My SIB weighs about 160 kg, and the motor about another 80 kg. With a length of 4.7m, a pair of wheels attached directly to the transom would make the system extremely nose heavy and awkward to use.

What I am planning is to run 2 sets of nylon webbing) straps from the back of the cart up and around the transom (with a quick pull buckle to adjust their lenght and tension), 2 more sets of straps from the front of the cart to the bow, and on from the sides of the cart around the top of the sponsons (the pictures show 2 sets of side straps, but 1 set should be sufficient).

Here is what I have in mind; The first 4 picures are a view from the front starting with a 3/4" round solid aluminum rod that has a piece of square aluminum tubing around it's mid section (I have a pair of turf tires with nylon rims with 3/4" hub holes).
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Old 02 August 2008, 09:02   #7
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The next pictures show a top view of the platform that the bottom of the hull would rest on.
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Old 02 August 2008, 09:05   #8
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If you are paying 95 for the wheels alone then you seriously need to shop around.

On the local market there is a chap who has loads of different wheels obviously surplus stocks from somewhere. I bought a pair of 8" wheels for 5.

Alternatively these are IMO a bit small but you get the idea
http://cgi.ebay.co.uk/160-mm-Castor-...6.c0.m14.l1318

Or IMO a bit too big but a lot cheaper than 95

http://cgi.ebay.co.uk/Pair-of-15-Lau...742.m153.l1262

Still find it hard to justify 100+
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Old 02 August 2008, 09:05   #9
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Quote:
Originally Posted by codprawn View Post
I suspect the wheels would cost you more than a fiver!!!

They are pretty large diameter and have rubber tyres not the vinyl type that some of the cheaper wheels have.

Shop around and you will get the wheels for about 95 - by the time you have messed around and bought the 316 stainless etc it isn't worth the hassle. Unless of course you intend to build a better product.

You mention them snapping but I think that's probably the smaller cheaper ones or people who are overloading them.

Mine are great - the only drawback with them is the amount of buoyancy in the tyres - it makes it very difficult to lower them and lock down before coming in.
I guess I could find tires and wheels for 95, but they are available in about twenty different variations at the DIY store around the corner for considerably less.

The prices for these wheels in Germany are about 5 Euros a piece ( I just bought two for my other boats trailer), another 10 Euros for aluminum, and about 5 Euros for Stainless Steel Bolts.

My total retail cost for materials, 25 Euros!

If you are not capable of doing such work yourself, don't have the time, or just don't like to work with your hands, I understand. I have a neighbor who calls an electrician, if a light bulb burns out. No joke.

For those that enjoy doing such small projects themselves, go for it. We are not talking about “Rocket Science” here.
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Old 02 August 2008, 09:10   #10
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Quote:
Originally Posted by prairie tuber View Post
This may be a little different from what you are looking for,, but I am looking at fabricating a launching/portaging wheel-cart system that can be quickly taken apart which straps under my hull between the hijacker tubes. The idea being to get the wheels directly under the center of mass of the boat and motor. My SIB weighs about 160 kg, and the motor about another 80 kg. With a length of 4.7m, a pair of wheels attached directly to the transom would make the system extremely nose heavy and awkward to use.

What I am planning is to run 2 sets of nylon webbing) straps from the back of the cart up and around the transom (with a quick pull buckle to adjust their lenght and tension), 2 more sets of straps from the front of the cart to the bow, and on from the sides of the cart around the top of the sponsons (the pictures show 2 sets of side straps, but 1 set should be sufficient).

Here is what I have in mind; The first 4 picures are a view from the front starting with a 3/4" round solid aluminum rod that has a piece of square aluminum tubing around it's mid section (I have a pair of turf tires with nylon rims with 3/4" hub holes).
Its a good system for a large boat ,it should work well.

I only have a 380 with an aerodeck so it only weighs 43k so it would probably be a bit heavy duty for my needs. On a light boat I dont think attachment to the transom would be a problem.

Good luck and let me know if it works
ATB
Mike
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