Zippkits jae 21fe v2 outrigger_wood kit build

[ezhitz]

No problem. I believe I clipped marker number 3.

[sammyha]

No problem. I believe I clipped marker number 3.

Ah! I'm not used to markers being out there because I don't race. Duh.

How fast is your rigger in lap trim?

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[ezhitz]

Haven’t really worked a lot on the boat because it’s just a fun runner but I have hit 85mph. It’s a great boat to run.

[sammyha]

Haven?t really worked a lot on the boat because it?s just a fun runner but I have hit 85mph. It?s a great boat to run.

Nice! Very impressive!

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[sammyha]

This is a simple thing, but a sharp file is more accurate than a sanding block. I've filed a nice flat angle on the bottom sheeting and the front nose block former.


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[sammyha]

Fits like this make for stronger epoxy joints...



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[sammyha]

Doing whatever it takes using clamps, tape and weights, to epoxy the transom and transom doubler in. Using thirty minute epoxy here...

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[sammyha]

I'm videoing a build series on YouTube simultaneously along with this thread. A link to the next video will be the easiest thing to do here...

https://youtu.be/pCs8B7XMMoQ

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[sammyha]

I prefer to epoxy the motor mount to bare wood on the floor of the tub, so I'm fitting everything before I seal the inside of the tub.

Here's the tubing sizes I use and a piece of 3/16" rod for what I call the alignment stack.



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[sammyha]

I put the 3/16" rod in the motor coupling, and stack these tubes to align the motor to the stuffing tube.

For most builds I would cut 1" long pieces of all these tubing sizes. Including the stuffing tube size. Then use that stack to locate and cut an accurate slot in the bottom of the tub, aligned to the center of the motor and mount.



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[sammyha]

In this case, the slot is already laser cut. So I can stack a length of 9/32" tube onto the stuffing tube (shown with pencil), and that 9/32" tube gets epoxied into the tub. I did have to widen the slot and the hole thru the former. It was laser cut to fit the 1/4" stuffing tube.



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[sammyha]

Here's the tub setup on blocks, with one side of the ski and the ski bottom shimmed in place.



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[sammyha]

This let's me get a final accurate bend on the stuffing tube. It's actually a fairly tight fit under there.



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[sammyha]

I also found with this mockup I needed to lower the motor angle one degree to 17 degrees. The stuffing tube fit inside the ski better at a slightly shallower angle.



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[sammyha]

This is an accurate way to align everything. Here I've marked the motor mount location.



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[sammyha]

And it's an easy way to epoxy everything in place with no binding or fighting the fit of the stuffing tube in the ski. Here's the stuffing tube centered and laying flat at the back of the ski.

Now I'm ready to epoxy in the brass sponson rod tubes, the stuffing tube and the motor mount before sealing the inside of the tub...



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[sammyha]

I'm really making progress on the build now!

The motor mount, the stuffing tube and the sponson rod tubes are in.

If you've built a wood kit you know what this means. The major components are epoxied in accurately, everything is in line and you're over a big hurdle. You should have lots of thing figured out by now, instead of scratching your head later in the build...

I also lowered the motor angle again, just before I started mixing epoxy.

I'm at 14-1/2 degrees and I'm really happy with less bend on the stuffing tube. It fits inside the bottom ski better too.



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[sammyha]

Here's the short piece of tubing for the easy change stuffing tube setup. Lowering the angle meant cutting the slot farther back. I've filled it with scrap plywood and a fiberglass patch on both sides.

I also filled in the former with a small piece of scrap plywood. Looks right to me, and I'm sure it's stronger...



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[sammyha]

Here's the motor mount with fiberglass and epoxy on the outside and a bead of epoxy only on the inside.



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[sammyha]

Here's the back sponson rod tube that I had to drill holes for and run thru the motor mount. That's due to the 100mm long TP 4070 motor and keeping the stock motor location...



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[sammyha]

And here's the front sponson rod tube. Note the extra length sticking outside the tub. So the locking collars don't rub the paint when the sponson rods flex...



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[sammyha]

Ready to seal the inside of the tub, finally...

Yeah!



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[Chrisk7]

Looking great Sam, thanks for taking the time to showcase it all. I've been thinking of scratch building one of these for a winter project and its nice to see details of how they should be put together.

[jingalls007]

Nice work! I?m building a RSX380 and referring to your build for pointers. Thanks for the thorough documentation; it?s really helpful.

[sammyha]

Looking great Sam, thanks for taking the time to showcase it all. I've been thinking of scratch building one of these for a winter project and its nice to see details of how they should be put together.

That would be awesome! I could think of a couple minor changes I would make...

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[sammyha]

Nice work! I?m building a GSX380 and referring to your build for pointers. Thanks for the thorough documentation; it?s really helpful.

Not a problem. That's a ML Boatworks kit right? Great choice...

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[jingalls007]

Sorry, I meant the RSX380 😊

[sammyha]

Sorry, I meant the RSX380

Great choice too!

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[sammyha]

I've started building the bottom ski. Here's my setup.

I'm using my homemade pvc pipe clamps...



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[sammyha]

Here's another simple idea for your builds, might not be my original idea. Tape hinge, spread your epoxy, flip the bottom plate over into place. No fumbling or mess.

Tape it up good...

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