SUBSIM Radio Room Forums - View Single Post - [TEC] Lawrence 10-B Slideruler/USN S495-S505

ElCid97 · 04-10-25, 06:27 AM

Thanks for the help and, more importantly, for the patience!

Yes, the instrument only has two (2) moving parts:
1. "B-C1-C" which is the slider which moves left/right and is used to calculate values.
2. "Metal Cursor" which is moved back and forth to "read" the values and is placed above everything else. The metal cursor has a line called the "Index Line" which is used to read the values.

The "S-L-T" part at the bottom is actually the BACK part of the "B-C1-C" slide and would be used for angles. In real life, you would slide the "B-C1-C" slide out and re-insert it into the instrument after flipping it over.

I don't know how the RecMan does the changing of the image for the different angles, so I just went with the "lazy" way of doing it and just placed it at the bottom and lined up the marks so it works. Well, from a "math" point of view, anyway.

If I'm understanding this better, I can just use the image in post #7 by just placing the cursor off to the left and adding an area underneath for the "border" area as used by default dials? Maybe just move the cursor off to the left?

I did some work last night, but not enough. I'll do some more tonight and see what I can update tomorrow.

Thanks again for everything!

ElCid97

04-10-25, 06:27 AM	#9
ElCid97 Machinist's Mate Join Date: Nov 2019 Location: Miami, FL Posts: 122 Downloads: 120 Uploads: 5	Thanks for the help and, more importantly, for the patience! Yes, the instrument only has two (2) moving parts: 1. "B-C1-C" which is the slider which moves left/right and is used to calculate values. 2. "Metal Cursor" which is moved back and forth to "read" the values and is placed above everything else. The metal cursor has a line called the "Index Line" which is used to read the values. The "S-L-T" part at the bottom is actually the BACK part of the "B-C1-C" slide and would be used for angles. In real life, you would slide the "B-C1-C" slide out and re-insert it into the instrument after flipping it over. I don't know how the RecMan does the changing of the image for the different angles, so I just went with the "lazy" way of doing it and just placed it at the bottom and lined up the marks so it works. Well, from a "math" point of view, anyway. If I'm understanding this better, I can just use the image in post #7 by just placing the cursor off to the left and adding an area underneath for the "border" area as used by default dials? Maybe just move the cursor off to the left? I did some work last night, but not enough. I'll do some more tonight and see what I can update tomorrow. Thanks again for everything! ElCid97