For some reason, the last two sentences were cut off of my message. The last two sentences should read: It may be a little off on curves, but it will be very close. I realize it is hard to describe this tool without seeing it, but it does work. Roy J Meissner ----- Original Message ----- From: roy meissner To: S Scale List Sent: Thursday, July 13, 2006 8:44 PM Subject: {S-Scale List} grades
To determine the grades on my layout, I use an idea I found in an old MR article on making spline roadbed. I use a 24" level. To be 100 % correct, the level should be 25" long, but 24" will work. Since I have a milling machine I like to play with, I added 1" to the level. Now make an adjustable peice on one end of the level. Then mark in 1/4" increments on the adjustable piece. If you want a 1% grade, set the adjustable piece to the first mark, 1/4". The bottom of the adjustable piece is now 1/4" below the bottom of the level. Put the level on the roadbed with the 1/4" piece on the low end of the grade. When the bubble in the level is in the middle of the marks, you have a 1% grade. The idea is that 25" is 1/4 of 100", so when you put the 25" level on the road bed at 1/4", you measure 1/4th of 100" of the grade. The increase in height for 25" is 1/4" for 1% grade. It may be a little off on cur Roy J Meissner [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/