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Author Topic: Plywood  (Read 21013 times)
jward


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« Reply #45 on: January 13, 2010, 06:48:17 AM »

joe
here's how i do the cutting and splicing. i work primarily with pine board, but this will work just as well with plywood.

the easiest way to cut a corner with a jigsaw is to drill a hole there with a bit slightly larger than the jigsaw blade you are using.

splicing is best done with something solid. leftover scraps of plywood, 1/2" or thicker, work well as does pine board. while you can splice the entire joint between the two pieces, it is really only necessary to have a solid joint where the track will be. i like to have at least 4" of good solid wood on each side of the joint, on the splice plate. use wood glue, clamp the splice if possible, and use screws driven from underneath the layout to hold everything together. if the ends of the screws protrude above the plywood, trim them with a dremel if you have one, or file them down. make sure you have an even surface between the two sections, you don't want a hump in your track.
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Jeffery S Ward Sr
Pittsburgh, PA
pipefitter


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« Reply #46 on: January 13, 2010, 12:09:34 PM »

Dear Robert,

Here is an 18" wide pattern.  Gives a 5' x 8-1/2' rectangular ring ...

joe
here's how i do the cutting and splicing. i work primarily with pine board, but this will work just as well with plywood ...

Thanks Joe and Jeff!

Robert
« Last Edit: January 13, 2010, 12:12:36 PM by pipefitter » Logged

Grew up next to B&O's Metropolitan Branch - Silver Spring Maryland
Joe Satnik


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« Reply #47 on: January 14, 2010, 04:09:21 PM »

Dear All,

Here is a 16" wide ring.  Gives  5' x 9' (or optionally up to 5' x 9'-8") outer dimensions.

Use at your own risk.  Be safe.  Dimensions are in inches.  Drawing not to scale. 

Option 1:

48 l------l-------l------------------------------------l
     l        l          l                                                   l
     l        l          l                                                   l
32 l        l-------l--l\----------/l--------------l           l
    l        l              l     \      /    l                   l            l
    l        l              l        X       l                   l            l  5' x 9' w/ 4 triangles to splice to inside corners
    l        l              l     /     \     l                   l            l
16 l        l----------l/----------\l---l----------l            l
     l                                            l              l            l
     l                                            l              l            l
0   l--------------------------------l----------l--------l
   0       16        36 40              56 60          80         96   

Dispite my poor keyboard character drawing, all cuts are parallel to the edges of the sheet using a vertical blade.   

Exception, the last two cuts: 40,16 to 56,32 and 56,16 to 40,32 are 45 degrees with a vertical blade.

The resulting triangles could be spliced into the 4 square inside corners.

Option 2:

48 l------l--------l------------------------------------l
     l        l          l                                                   l
     l        l          l                                                   l
32 l        l--------l--l------------l--------------l           l
    l        l              l  waste or    l                   l            l
    l        l              l  splice        l                   l            l  5' x 9'
    l        l              l  mat'l         l                   l            l
16 l        l----------l------------l---l-----------l            l
     l                                            l              l            l
     l                                            l              l            l
0   l--------------------------------l----------l--------l
   0       16        36 40              56 60          80         96   

Option 3:

48 l------l--------l------------------------------------l
     l        l          l                                                   l
     l        l          l                                                   l
32 l        l--------l-------l--------------------l           l
    l        l                     l                            l            l
    l        l                      l                           l            l  5' x 9'-8"
    l        l                      l                           l            l
16 l        l---------------l----------l----------l            l
     l                                            l              l            l
     l                                            l              l            l
0   l--------------------------------l----------l--------l
   0       16        36        48            60          80         96   

Hope this helps.

Sincerely,

Joe Satnik 

Edit: Changed 9-1/2' (error) to 9'-8", added "outer dimensions."
« Last Edit: January 15, 2010, 03:04:29 PM by Joe Satnik » Logged

If your loco is too heavy to lift, you'd better be able to ride in, on or behind it.
pipefitter


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« Reply #48 on: January 15, 2010, 12:26:44 PM »

Dear All,

Here is a 16" wide ring.  Gives  5' x 9' (or optionally up to 5' x 9'-8") outer dimensions ...

Thanks a lot Joe

Smiley Robert
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Grew up next to B&O's Metropolitan Branch - Silver Spring Maryland
steamchugger

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« Reply #49 on: January 23, 2010, 11:15:35 PM »

try googling or other search engine for plywood/custom sizes i know they make different sizes its just a matter of locating one and also wether its cost  effective
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