Eric's C21

Power Boats only. Please include the boat type in your question.
User avatar
jacquesmm
Site Admin
Site Admin
Posts: 27179
Joined: Wed Aug 14, 2002 1:00 am
Location: Florida USA
Contact:

Re: Eric's C21

Post by jacquesmm » Wed Apr 06, 2016 11:01 am

Do not look at everything at the same time, do not worry about the stringers or a gap between panels and frames.
Focus on getting the panels together and form a fair shape.
The bow will want to pull away from the bow mold, that is why we have a bow mold: to pull the panels back closer to the mold but only after everything is fair and smooth.


Jacques Mertens - Designer
http://bateau.com

Eric1
Very Active Poster
Very Active Poster
Posts: 2972
Joined: Tue Aug 19, 2014 3:17 pm
Location: Spartanburg,S.C.

Re: Eric's C21

Post by Eric1 » Wed Apr 06, 2016 3:48 pm

Hi Jacques,

Yes I have reviewed Stephan's C21 photos.
I have been trying to fit/form only the bottom panels, which I had gaped with a small nail.
I will reset the panels with an inch of play.

I shall go ahead and make the side panels, I thought I had to get the bottom panels together then add the sides.

I sent a test email an photo to you.
Thank You Sir

User avatar
jacquesmm
Site Admin
Site Admin
Posts: 27179
Joined: Wed Aug 14, 2002 1:00 am
Location: Florida USA
Contact:

Re: Eric's C21

Post by jacquesmm » Wed Apr 06, 2016 4:38 pm

I got the test pictures but it does not show the bow. Keep sending pics, let me see the bow.
Jacques Mertens - Designer
http://bateau.com

Eric1
Very Active Poster
Very Active Poster
Posts: 2972
Joined: Tue Aug 19, 2014 3:17 pm
Location: Spartanburg,S.C.

Re: Eric's C21

Post by Eric1 » Fri Apr 15, 2016 3:37 pm

Hi Jacques,

I finally had a few minutes to work on my issues with the bottom panels. I decided before I cut away any material I would re measure everything. I found the bow mold and frame "A" was off center by 3/8". That made a big difference in the keel issues. I will still have to cut some of the bottom panels away from keel edge, but it will be about a 1/4" or so.
Having found and corrected the issue, I'm comfortable moving forward. Next, I will cut the sides out and make the long boards. Hope to have more time for this project next week.

Eric :)

User avatar
jacquesmm
Site Admin
Site Admin
Posts: 27179
Joined: Wed Aug 14, 2002 1:00 am
Location: Florida USA
Contact:

Re: Eric's C21

Post by jacquesmm » Fri Apr 15, 2016 3:54 pm

Thanks for the updates.
To have the frames off by 3/8 explains it.
I am glad you discovered it before trimming the panels.
Still, to trim a little bit is perfectly OK, a small gap along the keel and bow is perfectly fine.
Jacques Mertens - Designer
http://bateau.com

User avatar
jacquesmm
Site Admin
Site Admin
Posts: 27179
Joined: Wed Aug 14, 2002 1:00 am
Location: Florida USA
Contact:

Re: Eric's C21

Post by jacquesmm » Wed Apr 20, 2016 4:04 pm

Image

Problem solved. :D
It looks very nice and fair now.
And no plywood wasted.
Jacques Mertens - Designer
http://bateau.com

Eric1
Very Active Poster
Very Active Poster
Posts: 2972
Joined: Tue Aug 19, 2014 3:17 pm
Location: Spartanburg,S.C.

Re: Eric's C21

Post by Eric1 » Thu Apr 21, 2016 9:47 am

Hi Jacques,

I'm going to layout the side panels today. I just want to confirm I'm drawing my points correctly. On Dwg#E226/7 look at the lower panel, at the 8 foot point you show two points. The first is 3/8" and the second is 2'2".
The 2'2" is measured from the edge of the plywood correct?
In other words, I do not measure it from the 3/8" mark (3/8" + 2'2").

I just want to confirm I doing this so I don't run into alignment issues with the side panels.

Thank You again for your help.

Eric

Eric1
Very Active Poster
Very Active Poster
Posts: 2972
Joined: Tue Aug 19, 2014 3:17 pm
Location: Spartanburg,S.C.

Re: Eric's C21

Post by Eric1 » Thu Apr 21, 2016 2:20 pm

Jacques, The question must stand. Upon laying out the side panels it appears these dimensions are incremental.

User avatar
jacquesmm
Site Admin
Site Admin
Posts: 27179
Joined: Wed Aug 14, 2002 1:00 am
Location: Florida USA
Contact:

Re: Eric's C21

Post by jacquesmm » Thu Apr 21, 2016 2:41 pm

They are incremental.
The drafting on that plan dates from 25 years ago. Right now, I show everything always from the same baseline but here the dimensions are incremental.
You can see that by looking at other dimensions a little further to the left: the arrows clearly point to one side first then to the next one.
Look at the one starting with 3-1/2" followed by a 2' 2". That is how the dimensions are set.
Jacques Mertens - Designer
http://bateau.com

Eric1
Very Active Poster
Very Active Poster
Posts: 2972
Joined: Tue Aug 19, 2014 3:17 pm
Location: Spartanburg,S.C.

Re: Eric's C21

Post by Eric1 » Thu Apr 21, 2016 3:20 pm

Ok, That's what I thought. Thanks for the quick reply!

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest