Building my own dingy - Page 3 - SailNet Community
 3Likes
Reply
 
LinkBack Thread Tools
post #21 of 27 Old 10-18-2012
Barquito
 
Barquito's Avatar
 
Join Date: Dec 2007
Location: Madison, WI
Posts: 2,653
Thanks: 1
Thanked 45 Times in 45 Posts
Rep Power: 10
 
Re: Building my own dingy

I would be suprised if there wasn't someone with a supply in AK. OTOH, they may not have 4mm Okume.

Bristol 27
Cirque
For Sale

Valiant 32
Barquito is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #22 of 27 Old 10-18-2012
Senior Member
 
blt2ski's Avatar
 
Join Date: May 2005
Posts: 7,147
Thanks: 1
Thanked 40 Times in 39 Posts
Rep Power: 13
   
Re: Building my own dingy

Reality is, you could do it with ACX plywood, as long as it had exterior glue. One does not need to use okume plywood $$$$$$

One the other hand, if you wish to cover with a varnish equal, so you see the teak grain in the plywood, Okume is the way to go. But any 1/4 dg fir based marine ply or ext grade glue plywood would work.

Make sure you get the plans with full size patterns. Otherwise, you will spend a lot of time drafting things upward!

Marty

She drives me boat,
I drives me dinghy!
blt2ski is offline  
Quote Quick Reply Share with Facebook
post #23 of 27 Old 10-19-2012
Barquito
 
Barquito's Avatar
 
Join Date: Dec 2007
Location: Madison, WI
Posts: 2,653
Thanks: 1
Thanked 45 Times in 45 Posts
Rep Power: 10
 
Re: Building my own dingy

Quote:
One the other hand, if you wish to cover with a varnish equal, so you see the teak grain in the plywood, Okume is the way to go. But any 1/4 dg fir based marine ply or ext grade glue plywood would work.
That is basically what I found. Exterior grade plywood works... my boat didn't sink (has been going strong for 5 years). However, because of the internal voids, there is severe checking. The wood breaks down from the inside. Protecting with a layer of epoxy and painting won't keep this from happening. Maybe a layer of glass would. I think if you are going to spend the time to make a boat, spend the extra $100 and make is look good and last.

Bristol 27
Cirque
For Sale

Valiant 32
Barquito is offline  
Quote Quick Reply Share with Facebook
post #24 of 27 Old 10-19-2012
Barquito
 
Barquito's Avatar
 
Join Date: Dec 2007
Location: Madison, WI
Posts: 2,653
Thanks: 1
Thanked 45 Times in 45 Posts
Rep Power: 10
 
Re: Building my own dingy

Oh, one more thing about Okume: For the same strength okume weighs a LOT less than exterior ply.

Bristol 27
Cirque
For Sale

Valiant 32
Barquito is offline  
Quote Quick Reply Share with Facebook
post #25 of 27 Old 10-19-2012
Member
 
Join Date: Sep 2009
Location: Raritan Bay
Posts: 53
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
 
Re: Building my own dingy

I built a 10' Spindrift 10N nesting dinghy out out Okume plywood. It was my first building project and it was a lot of fun. It's an awesome dinghy that stows nicely in front of the mast, rows, well, motors well and tows very well. Some day I'm set her up for sailing.

She was quite usable after a winter of slow building, but I'm still finishing her up.
MooGroc is offline  
Quote Quick Reply Share with Facebook
post #26 of 27 Old 10-21-2012
Senior Member
 
wolfenzee's Avatar
 
Join Date: Jul 2008
Location: S/V Waltzing Matilda, Port Ludlow, WA (NW Puget Sound)
Posts: 497
Thanks: 2
Thanked 2 Times in 1 Post
Rep Power: 9
 
Re: Building my own dingy

Besides the fact I need a tender for my boat...I have finished all the big projects. A friend was building a nesting tender for themselves but then didn't need it so was going to sell it to me, but this one is so easy to build and I can customize it to my boat. Also it's away to use up alot of the left over lumber I have...so why not.
wolfenzee is offline  
Quote Quick Reply Share with Facebook
post #27 of 27 Old 12-18-2015
Barquito
 
Barquito's Avatar
 
Join Date: Dec 2007
Location: Madison, WI
Posts: 2,653
Thanks: 1
Thanked 45 Times in 45 Posts
Rep Power: 10
 
Re: Building my own dingy

Quote:
I will be building a Devlin Boat design Polliwog this winter. For a rowing dinghy this has the advantage of a longitudinal bench. This will allow adjustments for when there are one vs. two in the boat. Not sure how well it sails. The D4 plans include plans for adding a dagger board, etc.
This thread is a bit old, but, thought I would provide a little follow-up to my posting. I did a little write-up for Devlin Boat on the dinghy build, with some pictures.

Devlin Designing Boat Builders - Polliwog: George

Here is the text from the write-up.

Quote:
Lightweight Working Polliwog

We are day sailors and weekenders on a Bristol 27 sailboat. I don’t think we will be shellbacks at any time in the near future (a Polliwog having sailed across the equator, and shellback having not). We sail off of a mooring pin, therefore, find that we need passage to and from shore. In my first attempt at building a yacht tender, I made a 7 foot pram out of quarter inch construction grade plywood. My ‘beauty’ weighed in at about 80 lbs. Being of somewhat slight physique (think Kermit the frog arms), I was having a difficult time getting my pram onto the top of the car. Looking around, I found that the design of the Polliwog made sense as a replacement in a number of ways: It had a pointed bow, that might make the boat fit on the foredeck of my sailboat better than a pram bow. It had a longitudinal rowing bench, making balancing rowing position changes possible. And, finally, it just looked more ‘shippy’.

For this effort, I wanted to push the limits of lightweight, with the intention of still being able to use-and-abuse her (lovingly). By stepping up to marine grade okoume, I saved a bunch of weight compared to pine plywood. I also reduced the thickness of the hull from ¼ inch, specified in the plans, to 4 mm. I sheathed just the bottom, and over the chines with 6 oz woven glass. I didn’t sheath the topsides, or the inside, to save some more weight. The transom, and seat support bulkhead, forward seat divider, and skeg where all laminated double thickness of the 3mm ply. The rest of the front seat supports and rear seat support were single layers. The corner knees, and seat tops where all single layer ply rather than solid wood. I put a small solid wood strip on the edges of the exposed ply for cosmetic reasons. In order to prevent damage to the mother ship, I put (well) used fire hose over foam pipe insulation around the gunnel for a fender. I’m guessing the pipe insulation material will get squished, and will need replacing every few years. I screwed a small sacrificial aluminum strip from stem to stern on the skeg for protection. For additional thickness in this area, I extended the skeg all the way up onto the prow. This also makes the aluminum strip stand proud of the hull, helping to protect her when dragging out of the water. Because I did not want to show off my less than perfectly smooth hull (it is a working boat after all!), I painted it white, with a thin cove strip for visual interest.

My new creation weighs in at about 45 lbs. with everything attached. I have no trouble getting her on top of the car by myself. With my wife helping, it is almost effortless. I have found that the Polliwog rows well. Before mounting the oar lock sockets, I took a trip down to my local lake with oar lock sockets in hand and a couple clamps, and got in the boat. I positioned myself in the boat so there was as much skeg in the water as possible without the transom dragging, and marked the spot for the oar lock sockets. I then did the same, with my wife in the stern seat. Turns out, it balances well with me almost snug into the bow of the boat, which provides the whole area between the two of us for cargo.

We plan on being a little more careful with our lightweight Polliwog about avoiding rocks going ashore, and with throwing heavy things down from the mother ship. I suspect she will give us many good years of service.

Gordon
TomMaine likes this.

Bristol 27
Cirque
For Sale

Valiant 32
Barquito is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Dingy Dreamin Gear & Maintenance 22 02-19-2009 08:05 PM
Dingy NewsReader Mass Bay Sailors 0 07-10-2007 07:15 PM
My New Dingy -should do the job! Sailman123 Boat Review and Purchase Forum 8 03-21-2007 11:28 PM
Building a community on the open sea / Program teaches girls sailing and team building (San Francisco Chronicle) NewsReader News Feeds 0 09-14-2006 08:15 AM
dingy?? plumsea General Discussion (sailing related) 1 11-07-2000 05:18 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome