Marshall's FS17
-
- Frequent Poster
- Posts: 122
- Joined: Fri Feb 05, 2021 1:47 pm
- Location: Nothr Texas
Marshall's FS17
No previous experience - Strongback is built and awaiting CNC kit. I have some confusion as I read Building Notes: How is the bow mold (A) positioned vertically as it butts into the strongback? Also, I’m needing help understanding the vertical placement of the subsequent molds. Some seem to rest on the strongback while others (pictured in Building Notes) may be elevated vertically (using braces) above the strongback.
Re: Marshall's FS17
First all of your molds will be full size. the smaller ones that run under the deck will be throw aways full size ones made of plywood or should be in the kit and then be replaced by the smaller ones when you flip. As far as the bow mold, make sure it is centered and you can then screw it to frame A. Make sure you have it at the right height for the hull or it won't do you any good. Again it is a throw away.
Well I hope this helps, Tom
Well I hope this helps, Tom
Restored Mirror Dinghy, Bought OD18 built by CL, Westlawn School of Yacht Design courses. LT US Navy 1970-1978
-
- * Bateau Builder - Expert *
- Posts: 10205
- Joined: Tue Jan 12, 2010 12:25 am
Re: Marshall's FS17
I have not built the FS17, but others have...
In general terms, station molds are attsched to a 2x4 cleat on edge. Those are then screwed to the strongback. To get the vertical height right, certain setups require adding vertical 2x4s and then a cleat to the bottom of them.
In general terms, station molds are attsched to a 2x4 cleat on edge. Those are then screwed to the strongback. To get the vertical height right, certain setups require adding vertical 2x4s and then a cleat to the bottom of them.
-
- * Bateau Builder - Expert *
- Posts: 10205
- Joined: Tue Jan 12, 2010 12:25 am
Re: Marshall's FS17
Here is a general idea. Sometimes, you won't need the verticals and the horizontal cleat screws to the mould. Bow mold is same, but attaches to the middle of the stringback
-
- Frequent Poster
- Posts: 122
- Joined: Fri Feb 05, 2021 1:47 pm
- Location: Nothr Texas
Re: Marshall's FS17
All appreciated; thank you!
-
- Frequent Poster
- Posts: 122
- Joined: Fri Feb 05, 2021 1:47 pm
- Location: Nothr Texas
Re: Marshall's FS17
CNC kit - Do I punch these cuts (since they are not all the way through) or use a jigsaw, or something else? Also, is some light sanding a good idea? Other inputs? Thanks!
-
- * Bateau Builder *
- Posts: 912
- Joined: Tue Aug 13, 2019 3:02 pm
- Location: VA
Re: Marshall's FS17
Always good to see someone jumping right into the thick of it!
Regarding the puzzle joints, is there a consistent "onion skin" or "tabs" left holding the pieces together?
The corresponding puzzle joint needs to fit snuggly into this one, so the edges must be clean. A small, .02" or less, is conducive in the joint as it allows glue to fill the gaps.
A quick read on puzzle joints can be found here...
https://boatbuildercentral.com/support- ... -joint.pdf
As well as host of other helpful reads that will help it all to come into focus.
Good luck. Keep posting pics.
Regarding the puzzle joints, is there a consistent "onion skin" or "tabs" left holding the pieces together?
The corresponding puzzle joint needs to fit snuggly into this one, so the edges must be clean. A small, .02" or less, is conducive in the joint as it allows glue to fill the gaps.
A quick read on puzzle joints can be found here...
https://boatbuildercentral.com/support- ... -joint.pdf
As well as host of other helpful reads that will help it all to come into focus.
Good luck. Keep posting pics.
-
- Frequent Poster
- Posts: 122
- Joined: Fri Feb 05, 2021 1:47 pm
- Location: Nothr Texas
Re: Marshall's FS17
A consistent "onion skin." When I use the jigsaw, the tend to breakaway before they are cut. My concern is the breakaway causes some splintering and loss of wood. Trying to find the approved solution.
-
- * Bateau Builder *
- Posts: 912
- Joined: Tue Aug 13, 2019 3:02 pm
- Location: VA
Re: Marshall's FS17
A little splintering won’t hurt a thing. Squeegee the glue over the gaps and any splintering, cover it with plastic and add some weight. They’ll be fine.MarshallTX wrote: ↑Mon Mar 29, 2021 9:12 pm A consistent "onion skin." When I use the jigsaw, the tend to breakaway before they are cut. My concern is the breakaway causes some splintering and loss of wood. Trying to find the approved solution.
A laminate trimming bit in a small router will cut the onion skin most easily. Quicker and cleaner than a jig saw.
-
- * Bateau Builder *
- Posts: 1243
- Joined: Sat Jun 04, 2016 7:38 am
- Location: Shellman Bluff, GA
Re: Marshall's FS17
I use an Oscillating tool with a fine tooth saw blade to cut the pieces out. A very useful tool for boatbuilding and relatively inexpensive. I’ve got one set up to cut and another set up to sand. Both inexpensive Harbor Freight purchases.
Who is online
Users browsing this forum: Bing [Bot] and 16 guests