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 Post subject: Re: Any beach cart ideas for tons of equipment?
PostPosted: Thu Apr 03, 2014 1:47 am 
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Add a 3rd axle with 2 wheels on the middle of the cart. Make them sit a little lower than the end two axles. This way you can pivot on the middle axle but it can tilt and rest on one of the end two axles.

Look at a home depot 6 wheeled lumber cart for reference


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 Post subject: Re: Any beach cart ideas for tons of equipment?
PostPosted: Thu Apr 03, 2014 4:26 am 
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Wow. Great idea. Post it, and I will build it! I'll see what I can do...


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 Post subject: Re: Any beach cart ideas for tons of equipment?
PostPosted: Thu Apr 03, 2014 4:28 am 
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Buddy of mine started this company...

www.boxcycles.com

Not bad... kind of pricey, but cool idea for beach towns.


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 Post subject: Re: Any beach cart ideas for tons of equipment?
PostPosted: Thu Apr 03, 2014 4:30 am 
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Or the obvious, just use 2 wheels.
If you need 4 for floatation in sand, make it a dually! :thumb:


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 Post subject: PVC Beach Cart 2.0
PostPosted: Mon Apr 28, 2014 7:04 am 
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RE the Home Depot lumber cart idea, I couldn't do it without doing multiple cuts with multiple unions (perhaps the next cart).

On sand, the rig was still a little hard to pull. On asphalt, I need a steering mechanism badly. There is a McMaster Carr cart hardware kit that includes wheels, axles, fasteners and steering assembly for $80 but I'm a cheapass. So instead of buying the kit, I spent way too much time and experimentation to solve the steering problem...

After lots of experimentation, I ended up using 5/8" threaded bar as a steering axle and a rotation point for that axle. I simply used a PVC pipe to mount the rotation point with the steering axle...


Attachments:
File comment: Stainless Nut bolt pack from Home Depot. ( I bought 3 of these.)
735bcbc4-a7a6-48e8-ad00-b2c0fed45af8.png
735bcbc4-a7a6-48e8-ad00-b2c0fed45af8.png [ 38.91 KIB | Viewed 350 times ]
File comment: Had to use the cart so I just attached a big caribener to pull the top of the cart.
d02e30df-3912-4110-a8c5-2ef244124a34.png
d02e30df-3912-4110-a8c5-2ef244124a34.png [ 35.58 KIB | Viewed 353 times ]
File comment: Since the rotational point is about an inch away from the axle, as the car is pulled the wheels turn like in a Castor and the cart turns.
5cda99e1-2351-479b-9d75-9b0e38128582.png
5cda99e1-2351-479b-9d75-9b0e38128582.png [ 36.64 KIB | Viewed 353 times ]
File comment: two 5/8" nuts and a washer (Strainless Steel) hold the wheels on (This will later prove to be a mistake.)
0107491a-957c-431c-94fe-b3e7578cc761.png
0107491a-957c-431c-94fe-b3e7578cc761.png [ 37.62 KIB | Viewed 353 times ]
File comment: Vertical load is spread across two horizontal pipes
3a0cfe6b-0abd-45f9-96ed-be358ba3be91.png
3a0cfe6b-0abd-45f9-96ed-be358ba3be91.png [ 41.07 KIB | Viewed 353 times ]
File comment: Slicing off the unused threaded bar. (Sparks make me look cool)
f0b0c062-dc73-4112-82f4-e88a0c82deed.png
f0b0c062-dc73-4112-82f4-e88a0c82deed.png [ 36.53 KIB | Viewed 353 times ]
File comment: Top view of rotation point
5cda99e1-2351-479b-9d75-9b0e38128582.png
5cda99e1-2351-479b-9d75-9b0e38128582.png [ 36.64 KIB | Viewed 355 times ]


Last edited by kimeza on Mon Apr 28, 2014 8:10 am, edited 1 time in total.
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 Post subject: Beach Cart 2.1
PostPosted: Mon Apr 28, 2014 7:27 am 
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There was a problem with most every part of this version of the build.

1) as I pulled the cart forward, the left wheel's rotation, turned the washer, which in turn turned the nut which made it tighter. This caused the wheel to lock up stopping the cart.

2) The rotation point (PVC pipe) was not drilled perfectly 90 degrees to the holes for the axle. This caused the front axles to be crooked and misalligned.

3) The rotation point was weak being PVC pipe and was already looking like it was going to break.

4) Pulling the cart causes the front two wheels to rotate in reaction so steering is slow. It kind of "wig wags" side to side behind you on cement. Because of the drag of sand, this is not a problem on the beach.

5) It's still a little hard to pull on the beach. I have to grab the pull handle behind me and lean forward on the sand.


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 Post subject: Beach Cart 3.0
PostPosted: Mon Apr 28, 2014 7:52 am 
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Posts: 33
Solutions to the problems were addressed below:

1) wheel to lock up (I just simply installed a nylon lock nut to the left wheel).
Attachment:
File comment: Nylock nut solves the wheel lock up problem
0dccfe70-e0af-4e37-9d95-80ff687643b4.png
0dccfe70-e0af-4e37-9d95-80ff687643b4.png [ 29.88 KIB | Viewed 341 times ]


2) The other rotation point (PVC pipe) was drilled on a drill press. I could not drill the two holes with perfect 90 degrees orientation. (I used a wooden block which by the nature of it's shape, allowed me to use a drill press for perfectly alligned 90 degree holes for the rotation point and the axle.)
Attachment:
File comment: Stronger that pipe I used in v2.0 Also the axle is 1" behind the rotation point so the wheel turns like a castor when the cart is pulled.
b8924d33-482e-4392-8157-bf820fedd3cb.png
b8924d33-482e-4392-8157-bf820fedd3cb.png [ 32.6 KIB | Viewed 341 times ]

3) The rotation point was weak (wood block seems much stronger than the PVC pipe.)
Attachment:
File comment: Wood block to mount the 5/8" threaded axle to the rotation point which are a perfect 90 degree angle to each other.
93b9ec99-ce1c-4db5-a002-bfdfe0a625ec.png
93b9ec99-ce1c-4db5-a002-bfdfe0a625ec.png [ 39.41 KIB | Viewed 341 times ]


4) Pulling the cart causes "wig wag". (I don't know of a solution.) :?:
Attachment:
File comment: I used this simple steering set up from V1.0. I used the same 3/4" pipe and drilled a horizontal 1/2" hole. Then put that into a 90 degree 1 1/4" elbow. Then drill the elbow with 1/2" hole on one side for the handle and a 5/8" hole on the other side for the threaded bar (rotation point)
4d89b986-3eb7-4f55-9375-88b685ca5bcc.png
4d89b986-3eb7-4f55-9375-88b685ca5bcc.png [ 39.39 KIB | Viewed 341 times ]

5) It's still a little hard to pull on the beach. (DUALLY WHEELS!)


Attachments:
File comment: The simplest mod was to add the inside dually wheels. Just drill a hole in the axles and throw in a couple of washers for the new wheel and a cotter pin secures it. EASY!
c0636117-d6ee-4ee8-9ead-c736480a74fc.png
c0636117-d6ee-4ee8-9ead-c736480a74fc.png [ 29.68 KIB | Viewed 341 times ]
File comment: One side of the dually. Be sure to put washers on both sides of each wheel
217b8ae5-f96d-45bb-9e5f-559a02ad02a4.png
217b8ae5-f96d-45bb-9e5f-559a02ad02a4.png [ 34.64 KIB | Viewed 341 times ]
File comment: Rear view of the dually wheels.
dd825d7c-5f0b-4f04-b876-80b29fac3edd.png
dd825d7c-5f0b-4f04-b876-80b29fac3edd.png [ 39.98 KIB | Viewed 341 times ]
File comment: After about 10 trips to HD, I'm done! (for now)
39237569-89a2-4185-a6a6-4b8b8d71556e.png
39237569-89a2-4185-a6a6-4b8b8d71556e.png [ 37.04 KIB | Viewed 341 times ]
File comment: Loaded up. 2 kites, 2 boards and gear bag.
9783ec6f-d475-48db-94c3-882b5cf418e4.png
9783ec6f-d475-48db-94c3-882b5cf418e4.png [ 40.93 KIB | Viewed 341 times ]
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