First you can start by designing your own ukulele using sketchup , for demonstration purposes I used this design instead of a ukulele ( I am using google sketchup pro 8 )
(Some info on the pictures can be helpfull , click them to see them better)
Once you got your ukulele you, look at the top of your screen and try to find “camera” and click it , once you have done that you will see a V next to “perspective” you would have to change that to “parallel mode”
Once you have done that, return to “camera” and click ”standard views” and choose the view you would like to have printed ( top view, side view, bottom view….)
Next go to ”file” also on the top of the screen and click print .. this should appear.
Now look for the section “printing format” and you will see that “made to fit page” is on, and turn that off and on the right you see a “scales” section and you want to set “in sketchup” and “in print” both on 1 this way you will get a 1:1 scale
Then all there is left for is to hit ok and you will end up with something looking like this …… with this method you can get pretty accurate ukulele body and neck templates .