CS25: Questions

Power Boats only. Please include the boat type in your question.
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OffshrAngler
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CS25: Questions

Post by OffshrAngler » Thu Nov 18, 2004 1:52 pm

I am about to start building the Cs25 and it says that the surface that you build it on does not have to be perfectly flat. my driveway has a slight slant in it because it is going down hill but not alot. it is about a 55* angle. is it ok to set up the jig and build it on that?



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Re: CS25: Questions

Post by JimW » Thu Nov 18, 2004 2:22 pm

OffshrAngler wrote: slight slant .... but not alot. it is about a 55* angle.
Fifty five degrees is not a lot????? 8O

If you mean 85 degrees of 5.5 degrees yes yeah no problem. The stringers and frames will line everything up fine if you cut the parts and their notches out correctly.
Jim Wright
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Post by tech_support » Thu Nov 18, 2004 3:04 pm

My garage is not completely level either. Just make certain your strongback/jig is level :wink:

Sometimes I think its better when you can't take anything for granted. For example some people just assume their garage floor is flat and level, or that the edge of piece of plywood is perfectly strait. If you know your edge is not strait, you draw a new baseline - if you know your floor is slanted you make sure your jig is strait and level.

I guess you could build it on the side of a mountain if you want - then of course you would be like Noah.

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Post by OffshrAngler » Thu Nov 18, 2004 3:04 pm

ok thanks for the help jim!

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Post by OffshrAngler » Thu Nov 18, 2004 3:06 pm

How would you recomend getting the juig level on a slanted driveway?

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Post by tech_support » Thu Nov 18, 2004 3:09 pm

using a level and blumb bobs :wink:

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Post by OffshrAngler » Thu Nov 18, 2004 3:14 pm

What are blumb blobs and what type of saw do you reccomend cutting the notches in the stringers with??

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Post by tech_support » Thu Nov 18, 2004 3:23 pm

A plain circular saw will do.

This is a plumb bob. You hang it from a string and it gives you a line you can use to make sure whatever you are working on is level.

Image

This is a really nice one, but you can use much cheaper things (fishing sinkers).[/img]

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Post by JimW » Thu Nov 18, 2004 3:26 pm

I used a saber saw very carefully.

The strongbacks don't need to be level either. The keel or base line can be made level which will simplify things but they don't even need to be level. A ball of string or digital level with a laser can take care of any slant. You could hammer stakes in uneven ground and use them as upright to support the frames. The boat hull needs to be straight and true, but not level. Leveling the whole thing is nice and gives a nice reference to work with but it's not required. As long as the frames are 90 degrees to the strongbacks the stringers and frame baseline will be parallel to the strongbacks. Go to the tutorial for building a power boat on a jig, study the setup, it will be clear how the stringer notches and frames create their own flat, straight jig no matter what it's built on. Uprights must all be parallel to each other and 90 degrees to baseline.

.... I think??

Jim
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Post by OffshrAngler » Thu Nov 18, 2004 4:39 pm

What saws will I need to build the CS25? I already have a circular, Jig, and a mitar.

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