Atlas Woodworking Zip Build

Outboard designs up to 14'

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Atlas Woodworking
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Joined: Tue May 19, 2020 4:30 pm

Atlas Woodworking Zip Build

Post by Atlas Woodworking »

Hey everyone, here's my take on the Zip build. I'm a cabinet maker by trade and this project is definitely pushing my skill set to the max! This is so different than the rectilinear work and problem solving that I'm used to and I'm having a really good time building this boat. All the material used is Sapele that I was able to source from the shop where I work. I've been lucky to find 16' lengths of 8/4 material which is relatively rare, and 5/4 in 16' as well. I've deviated away from the prints in a few different ways; for instance I built my transom from that solid 8/4 material, I included a half lap joint in my frames vs. the plywood gussets, and I cut my frame pieces from templates using contact adhesive, two sets of plans, and some 1/2" Baltic Birch. Some of these ideas created more problems to solve but ultimately I think the boat will be better off because of it. I'm excited to hear what ya'll have to say about my work and the changes I've made.

Best,
Ole
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Atlas Woodworking
Posts: 41
Joined: Tue May 19, 2020 4:30 pm

Re: Atlas Woodworking Zip Build

Post by Atlas Woodworking »

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This is a down-cut spiral pattern bit I'm using to cut perfect copies of the various frame members.
Last edited by Atlas Woodworking on Sat Oct 03, 2020 11:36 am, edited 1 time in total.

Atlas Woodworking
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Joined: Tue May 19, 2020 4:30 pm

Re: Atlas Woodworking Zip Build

Post by Atlas Woodworking »

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I used two 10mm dominos to strengthen this end grain to end grain connection, and a few pinch dogs to help keep the joint tight while the epoxy dried. I'm a big fan of PC Clear epoxy, it comes in 50ml cartridges and has a 5 minute cure time. I've been using this epoxy for years and for small jobs there's no better choice for me. Anything over what I need from a 50ml cartridge I go for West System.
Last edited by Atlas Woodworking on Sat Oct 03, 2020 11:41 am, edited 1 time in total.

Atlas Woodworking
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Re: Atlas Woodworking Zip Build

Post by Atlas Woodworking »

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Atlas Woodworking
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Re: Atlas Woodworking Zip Build

Post by Atlas Woodworking »

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I used a jig saw and a belt sander to get the angle right. There's always at least a few ways to do something, but if it works it works! I would have rather used a router bit to cut this angle but I wanted to save my money for other expenses I know are coming.
Last edited by Atlas Woodworking on Sat Oct 03, 2020 12:05 pm, edited 2 times in total.

Atlas Woodworking
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Re: Atlas Woodworking Zip Build

Post by Atlas Woodworking »

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Dry fitting each frame before gluing up!
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This was the first moment where a boat shape sort of jumped out at me! Exciting stuff.
Last edited by Atlas Woodworking on Sat Oct 03, 2020 11:59 am, edited 2 times in total.

Atlas Woodworking
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Re: Atlas Woodworking Zip Build

Post by Atlas Woodworking »

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There's a little tweaking and re-checking to do but I'd sat the frames are 95% there in terms of alignment and position. Ultimately though, like my man Jimmy Diresta says, "If it looks straight it is straight". Or in this case, if it looks balanced and fair, it is balanced and fair.
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I glued the form to the ground using PL construction adhesive. When it comes time to flip the boat I'll give the legs and a good whack and they'll come free.
Last edited by Atlas Woodworking on Sat Oct 03, 2020 11:57 am, edited 1 time in total.

Atlas Woodworking
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Re: Atlas Woodworking Zip Build

Post by Atlas Woodworking »

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The holes for my carriage bolts and the holes from mounting the transom to the form will be countersunk, and then plugged with a grain matched plug. This is the only option for a clean look!
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A sharp chisel and some focus go a long way. One of my favorite aspects of wood working is that it allows me to get into what Cal Newport calls "deep work".
Last edited by Atlas Woodworking on Sat Oct 03, 2020 11:49 am, edited 1 time in total.

hoodman
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Re: Atlas Woodworking Zip Build

Post by hoodman »

Looks nice and clean. Very precise. Sapele looks awesome with epoxy on it.
Matt

Building a Geronimo......!
viewtopic.php?f=2&t=25139

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Roberta
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Re: Atlas Woodworking Zip Build

Post by Roberta »

I love working with a good, sharp chisel.

Roberta :D
Roberta "Queen of the Boat Builders"
Built Zip "Oliver IV", Super Spartan "Jimmy 70", and Torpedo "The Glen L".

hoodman
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Re: Atlas Woodworking Zip Build

Post by hoodman »

You could veneer another layer on the outside of the transom. But the plugs will be hardly noticeable especially after the outboard and everything else is mounted.
Matt

Building a Geronimo......!
viewtopic.php?f=2&t=25139

JimmY
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Re: Atlas Woodworking Zip Build

Post by JimmY »

I'm a little concerned about using solid wood on the transom and breasthook. The motor is going to put a lot of stress on the transom along the grain lines. Think about a prop pushing forward, and the motor clamp pushing in the middle of the transom and pulling back at the top. I would have done it in two layers with the grain at 90 degrees to each other.

Same for the breasthook, when you go to screw the sheers to it you risk splitting it. Again I would suggest Two laminations with the grain at 90 degrees.

Everything else looks top notch.
-Jim
Nothing says poor craftsmanship like wrinkles in your duct tape!

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vupilot
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Re: Atlas Woodworking Zip Build

Post by vupilot »

Beautiful wood and build. My concerns exactly echo JimmY's. You could get lucky but its taking a little bit of a chance. I had concerns about even the way the plans called for the transom and added a 3rd later on the outside, was always glad I did.

In Glen's book, "Boat-building with plywood" he states half laps as one of 3 acceptable ways to join frame members. Yours sure are clean, your cabinet skills are showing!

hoodman
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Re: Atlas Woodworking Zip Build

Post by hoodman »

I don't know. I feel like for a boat the size of a zip he should be okay with a solid wood transom. Once you get a knee in there and all the other associated structure it's going to be really strong.
Matt

Building a Geronimo......!
viewtopic.php?f=2&t=25139

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Ibrew2be
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Re: Atlas Woodworking Zip Build

Post by Ibrew2be »

For perspective, Ken Bassett's Rascal calls for a solid mahogany transom at 1 1/4" thickness on a boat that's rated at 60 hp.

Barry
Barry Shantz

Imp built and launched.

Slowly building Ken Bassett's Rascal

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