Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old July 8th 03, 02:16 PM
Bill Mc
 
Posts: n/a
Default lapstrake rabbet

Anywhere on web for details on how to rabbet cut for lapstrake ends?
Thanks

  #2   Report Post  
Old July 8th 03, 02:59 PM
P.C.
 
Posts: n/a
Default lapstrake rabbet

Hi

"Bill Mc" skrev i en meddelelse
om...
Anywhere on web for details on how to rabbet cut for lapstrake ends?
Thanks


There is different rules all depending thickness of planking and if the grove is
in both overlapping planks as they shuld, or you cheat a little and make some
being on only one plank., ------ but with inch planking the length is usealy
round one and a halve feet thereabout, and with halve inch some feet will
normaly be enough.
Now the grove don't harm anything, so making it longer just perform a more
smooth ending , but somtimes you can even get the grove down to halve a feet ,
but this all depend what design and type of vessel.
Others proberly point to other measures but still this depend on many things and
your own judgement and skills proberly show best.
P.C.
http://groups.yahoo.com/search?query=cyber-boat


  #3   Report Post  
Old July 8th 03, 03:25 PM
Wiz
 
Posts: n/a
Default lapstrake rabbet

Anywhere on web for details on how to rabbet cut for lapstrake ends?

Bill,

Don't know about the web, but I can send you to a couple of print sources.

Your question is a bit ambiguous, so let's make sure I know what you want.

When you say "rabbet" that means the line in the keel, stem, or stern where the
planks end. If you are talking about the location where two planks start to
"blend" in to one another, eventually coming to a single thickness at the
rabbet, those are called the "gains". I believe this is what you want
explained, eh?

The best photos and explanations I've ever seen on the topic of gains are from
Tom Hill and from Sam Manning; each has an article in old WB showing pictures
and drawings, respectively, along with explanations. These issues are earlier
than #60, and could be found by searching WoodenBoat's website.

In the case of Tom Hill, I'm pretty sure the pictures and explanation came out
of his book on Ultralight Boatbuilding. You can probably still buy that one.

Best/Carron
"LABOR SVGIT"
  #4   Report Post  
Old July 9th 03, 12:47 AM
Wiz
 
Posts: n/a
Default lapstrake rabbet

Is the gain's "depth of cut" starts from 1/2 of thickness at the end,
and tapers out to 0 depth at approx 1 1/2ft from the end? Width is
constant 1 1/4in.
I will make a router jig.


Bill,

this is really easily done with a bull-nosed hand plane, and it gives you an
excuse to buy a really neat tool !!!

Cheers/The fader
"LABOR SVGIT"
  #5   Report Post  
Old July 9th 03, 08:53 AM
Meindert Sprang
 
Posts: n/a
Default lapstrake rabbet

"Bill Mc" wrote in message
om...
Yeap, the Gain is what I'm after, tom hill s book is at my local
public library.
Is the gain's "depth of cut" starts from 1/2 of thickness at the end,
and tapers out to 0 depth at approx 1 1/2ft from the end? Width is
constant 1 1/4in.


I used a power plane to do that. Divide the total length in four equal parts
and mark them. Set the plane to 1/5 of the maximum depth you want to make
this gain (1/2 plank thickness). Plane from the first quarter marker to the
end of the plank. Then another sweep from the second marker to the end. A
third sweep from the third marker to the end and two final sweeps over the
full length. Done.

Meindert




  #6   Report Post  
Old July 9th 03, 12:01 PM
P.C.
 
Posts: n/a
Default lapstrake rabbet

Hi

"Meindert Sprang" skrev i en meddelelse
...
I used a power plane to do that. Divide the total length in four equal parts
and mark them. Set the plane to 1/5 of the maximum depth you want to make
this gain (1/2 plank thickness). Plane from the first quarter marker to the
end of the plank. Then another sweep from the second marker to the end. A
third sweep from the third marker to the end and two final sweeps over the
full length. Done.

Meindert


Exactly , ----------- and then a guide piece clamped on, to rest the rabbet
plane to do the finish.
BTW, -------- check these instructive drawings ;

http://w1.1396.telia.com/~u139600113/plotfile.JPG

P.C.
http://groups.yahoo.com/group/structure-testbench/



  #7   Report Post  
Old July 9th 03, 12:05 PM
P.C.
 
Posts: n/a
Default lapstrake rabbet

Hi

"P.C." skrev i en meddelelse
k...
Hi

"Meindert Sprang" skrev i en meddelelse
...
I used a power plane to do that. Divide the total length in four equal parts
and mark them. Set the plane to 1/5 of the maximum depth you want to make
this gain (1/2 plank thickness). Plane from the first quarter marker to the
end of the plank. Then another sweep from the second marker to the end. A
third sweep from the third marker to the end and two final sweeps over the
full length. Done.

Meindert


Sorry I placed the wrong link , this is the one ;:

http://w1.1396.telia.com/~u139600113/detail.htm

P.C.
http://groups.yahoo.com/group/Cyber-...ngboat-5meter/


  #8   Report Post  
Old July 10th 03, 02:14 PM
Dave W
 
Posts: n/a
Default lapstrake rabbet

There is a nice explanation of lapstrake gains at the ends in Howard
Chapelle's book BOATBUILDING. It is a classic for all small boat builders.
IMHO, it is best made with a rabbit plane and it is a lot easier than it
looks.
Dave
"P.C." wrote in message
k...
Hi

"P.C." skrev i en meddelelse
k...
Hi

"Meindert Sprang" skrev i en meddelelse
...
I used a power plane to do that. Divide the total length in four equal

parts
and mark them. Set the plane to 1/5 of the maximum depth you want to

make
this gain (1/2 plank thickness). Plane from the first quarter marker

to the
end of the plank. Then another sweep from the second marker to the

end. A
third sweep from the third marker to the end and two final sweeps over

the
full length. Done.

Meindert


Sorry I placed the wrong link , this is the one ;:

http://w1.1396.telia.com/~u139600113/detail.htm

P.C.
http://groups.yahoo.com/group/Cyber-...ngboat-5meter/






Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

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



All times are GMT +1. The time now is 08:47 AM.

Powered by vBulletin® Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
Copyright 2004-2022 BoatBanter.com.
The comments are property of their posters.
 

About Us

"It's about Boats"

 

Copyright © 2017