home built boat trailer

Hi gents
after 10 full days of building my boat trailer its licenced and ready to go
has anyone else had a go at building there own? I have never done anything like this before
here is a few pics of how it turned out

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Ericl's picture

Posts: 463

Date Joined: 02/05/11

Looks like you did a great

Thu, 2013-10-17 16:51

Looks like you did a great job. Where did you get the design ?

Eric

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skipjack's picture

Posts: 49

Date Joined: 10/11/12

designed it myself had a look

Thu, 2013-10-17 17:01

designed it myself had a look online at other trailers and went from there

big john's picture

Posts: 8749

Date Joined: 20/07/06

Nice

Thu, 2013-10-17 17:24

Nice work, a lot of satisfaction to be had building a trailer.

I'd recommend you get it hot dipped galvanised.

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Jayden20's picture

Posts: 672

Date Joined: 29/08/11

 nice work mate looks

Thu, 2013-10-17 17:52

 nice work mate looks great...ill be looking to build my own later down the track but ill be using ç chanel instead of box section were I can

sea-kem's picture

Posts: 14960

Date Joined: 30/11/09

 Why is that Jayden? Just

Thu, 2013-10-17 21:04

 Why is that Jayden? Just curious.

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Jayden20's picture

Posts: 672

Date Joined: 29/08/11

 to make sure its still alive

Fri, 2013-10-18 07:33

 to make sure its still alive in 20 odd years time....makes its easier to clean it and dont have to worry about salt water getting trapped in side the tubes

sea-kem's picture

Posts: 14960

Date Joined: 30/11/09

 I can see your point but

Sat, 2013-10-19 08:11

 I can see your point but tube is a better section to work with and is structurally stronger with lighter sections. That's why they use ali unibeam and channel on the bigger trailers to keep the weight down.

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opsrey's picture

Posts: 1200

Date Joined: 05/10/07

Looks the goods. Well done.

Thu, 2013-10-17 20:02

 Not sure my welding would ever get past chook scratchings so can only admire others efforts.

Did you get it hot dipped galvanised?  Did you get a tough time putting it over the pits because it was home made?

chris raff's picture

Posts: 3257

Date Joined: 09/02/10

Neat job .. would've saved

Thu, 2013-10-17 20:12

Neat job .. would've saved some bikkies being handy with the welder , well done . Is the winch post reinforced at all to counteract any forward momentum ?

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Posts: 70

Date Joined: 03/05/13

 Would be interested how you

Thu, 2013-10-17 20:45

 Would be interested how you went getting it over the pits as thinking of doing the same for my tinnie....

skipjack's picture

Posts: 49

Date Joined: 10/11/12

 Thanks guys I'm going to get

Thu, 2013-10-17 21:02

 Thanks guys I'm going to get it hot dipped once I get the boat on there and every thing fits ok and

didn't have much trouble getting it over the pits  passed on the second go just had to fit more lights and 

Different chain

Posts: 5981

Date Joined: 17/06/10

can you tell me where you took it over the pits

Thu, 2013-10-17 21:45

I am having all sorts of bother with my trailer going over the pits at Mandurah, now I have to fit lights on the mud guards. The trailer never had them when it was first manufactured in 2000 and the only reason for it to go over the pits is I let the licence expire now it's put this on put that on get the area of the discs measured on a special form the dam thing is only a dual axial boat trailer for a 6m quinny for goodness sake. The trailer is a 200 model trail craft in good condition but the way I'm getting done over you would think it's for a 50 tonne cruiser,geeez

catchalittle's picture

Posts: 1875

Date Joined: 04/09/08

Excellent job mate

Thu, 2013-10-17 21:38

Excellent job mate

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outdoinit's picture

Posts: 1009

Date Joined: 05/10/12

+1

Thu, 2013-10-17 21:40

Excellent job mate.

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skipjack's picture

Posts: 49

Date Joined: 10/11/12

 I went to zeds mechanical

Fri, 2013-10-18 05:19

 I went to zeds mechanical and everything had to be spot on for them to pass it 

crasny1's picture

Posts: 7002

Date Joined: 16/10/08

Im not picking

Fri, 2013-10-18 13:32

Rather jealous. But it looks flimsy compared with my standard boring Dumbier. What material was used for the beams etc, and how did you find out about strenght ratings etc.

Just asking because it would have been an (expensive) disaster if it was to flimsy?

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Bodie's picture

Posts: 3758

Date Joined: 05/11/07

depends what boats going on

Fri, 2013-10-18 13:39

depends what boats going on it as well. It ali and light weight will have no problems.

crasny1's picture

Posts: 7002

Date Joined: 16/10/08

Cheers Bodie

Fri, 2013-10-18 13:58

Yes Im certainly not picking on the beautiful job, but gestimated the boat at 6.5m plus (prob closer to 7m) and with the narrow beams etc was just interested in the material etc, and how this was engineered prior to going over the pits to prevent a total rejection.

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Bradlze's picture

Posts: 96

Date Joined: 06/02/12

where did you source the skid

Fri, 2013-10-18 14:10

where did you source the skid strips from?

Saulty2's picture

Posts: 655

Date Joined: 28/05/10

looks the goods

Fri, 2013-10-18 16:02

question ! are you able to adjust the wheels forward or back to get even distribution on that trailer ?

skipjack's picture

Posts: 49

Date Joined: 10/11/12

 It's made from 150x50 50x50

Fri, 2013-10-18 17:39

 It's made from 150x50 50x50 and the draw bar in 100x100 all 3mm so should be a strong trailer and I got the skid strips from bcf 

Posts: 695

Date Joined: 12/03/12

that looks solid! good build

Fri, 2013-10-18 18:52

that looks solid! good build

Posts: 812

Date Joined: 09/10/06

 its a shame you painted it

Fri, 2013-10-18 19:24

 its a shame you painted it as it will need sand blasting before they can galv it. which means more $$$

NOHA's picture

Posts: 914

Date Joined: 24/06/07

Just a couple of things

Fri, 2013-10-18 22:05

 I admire anybody who gets out there and has a go. Looks like you have done a good job but just a couple of small things that would give me more piece of mind.

Where the box tube changes angle at the front toward the draw bar, that looks like you have welded the two pieces together. So the forward weight will be carried not by the strength of the box tube but by the strength of those welds. Where the draw bar connects has gussets to reinforce the welds but not that part. That carries a risk of failure that may see your boat hit the bitumen.

The other easy fix is the winch post. It is really just a 50mm box weld to a flat plate bolted to the frame. It needs to be supported back the the draw bar also. If you brake hard or come to a sudden stop the boat will push that over and climb into the back of your ute. We have all seen pictures of boats come off trailers with a broken winch post still attached to the boat but no longer attached to the trailer. Make another piece that bolts from half way up the winch post and angles back to the draw bar to stop it being able to move and snap the welds.

That said. Lots of "professional" trailers are made the same way as yours. But I never felt comfortable with them either. The trailer is so often a neglected or cheaply made part of the boat package and yet we have to trust it fully to carry our pride and joy. If it fails for mechanical/structural reasons your insurance company may very well walk away. 

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skipjack's picture

Posts: 49

Date Joined: 10/11/12

thanks mate yeh I ran out of

Sat, 2013-10-19 07:11

thanks mate yeh I ran out of time before I had to fly out to work but I will be putting a winch support on and some 150x50 on the inside of that join cut out to that angle so it looks the part or even some 5mm plate on both sides 

sea-kem's picture

Posts: 14960

Date Joined: 30/11/09

 Good job there Skipjack.

Sat, 2013-10-19 07:48

 Good job there Skipjack. Can't quite see how you've connected everything at the front there but if you can leave all the tube work open ended for galvanising you'll be fine against corrosion in the future. Just make sure you flush well.

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