Precise angles and consequences Search for: Searching This topic contains 4 replies, has 3 voices, and was last updated by Jim Rogers 2 weeks, 1 day ago. Viewing 5 posts - 1 through 5 (of 5 total) Author Posts May 30, 2019 at 9:11 am #20643 email@example.comParticipant I’m seeing precision to 2 decimal places on the plans (e.g 39.81 degrees). I have no tools with which to achieve such precision. What are the consequences of cutting a 40 degree angle vs 39.81? How much should I be worried about this? 20×20 King Post plan Mike May 30, 2019 at 9:35 am #20645 Brice CochranKeymaster If you use that dimension throughout the project and do a little head scratching with the king post and rafters you should be ok. I would recommend that you buy a framing square for $10 and use the 10″/12″ layout using it and get the exact 39.81. From there you can use a set bevel gauge for all the other angles spots to ensure everything stays the same. May 30, 2019 at 12:08 pm #20649 firstname.lastname@example.orgParticipant Thanks for the quick reply! Is there a similar way to plot the 10.39, 21.41, 45.57, and 55.15 degree lines? If not, how do you advise plotting them? Thanks, Mike May 30, 2019 at 3:41 pm #20654 Brice CochranKeymaster I use a construction master calculator to figure out the rise and run of the different angles that I need for a framing square or use a simple protractor. Here are a couple of other references for you. http://www.shopnotes.com/files/issues/114/framing-square.pdf http://www.johnsonlevel.com/News/FramingSquare June 10, 2019 at 3:43 pm #20896 Jim RogersModerator When I cut a frame that has some specific angles I create an “angle board” this is a template board that has all the angles of the frame drawn on it so that I can set or re-set my bevel gauge to that specific angle. I wrote a story long time ago, about how to create an angle board and use your bevel square to copy the angle. For more information about this see this thread: http://forestryforum.com/board/index.php?topic=52291.msg754380#msg754380 Jim Rogers Author Posts Viewing 5 posts - 1 through 5 (of 5 total) You must be logged in to reply to this topic.