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In the Shop => Knife Sharpening => Topic started by: Ringarn67 on July 29, 2021, 11:57:55 PM

Title: A ruler for measuring USB to stone distance
Post by: Ringarn67 on July 29, 2021, 11:57:55 PM
I have designed a ruler for measuring distance from USB to stone. It is designed for 3dprinting
I designed it so the numbers are against the stone for better accuracy, if the ruler is between the numbers and wheel there is a risk for parallax error

All measurement is from TormekCalc

All files is here:
https://www.prusaprinters.org/prints/72237-tormek-usb-wheel-ruler (https://www.prusaprinters.org/prints/72237-tormek-usb-wheel-ruler)
Link goes to external site with no login
Title: Re: A ruler for measuring USB to stone distance
Post by: micha on July 30, 2021, 02:16:50 AM
Urban,
that is a brilliant solution! Thanks for sharing your work and the files.

Mike
Title: Re: A ruler for measuring USB to stone distance
Post by: John_B on July 30, 2021, 05:24:11 PM
Can you explain the 3 files; what are differences?

Thank you
Title: Re: A ruler for measuring USB to stone distance
Post by: Ringarn67 on July 30, 2021, 07:25:05 PM
Quote from: john.jcb on July 30, 2021, 05:24:11 PM
Can you explain the 3 files; what are differences?

Thank you

3mf-files is slicer program files for generating g-code to 3d-printer
"Tormek-USB-GrindingWheel-Ruler-HeightModifier.3mf" is with "Height Modifier", a setting to adjust layer height, among many other things, on different height when printing
"Tormek-USB-GrindingWheel-Ruler.3mf" is a simple 3mf-file without adjusters
"Tormek-USB-GrindingWheel-Ruler-HeightModifier.stl" stl is a cad-format, you can open it with most cad-software.
Title: Re: A ruler for measuring USB to stone distance
Post by: Ken S on July 31, 2021, 04:19:53 PM
This is an interesting project. I plan to motivate my grandson to print one for me.

Ken
Title: Re: A ruler for measuring USB to stone distance
Post by: LarK on August 04, 2021, 09:00:09 AM
Wonderful! Thank you for this!

Kristian
Sweden
Title: Re: A ruler for measuring USB to stone distance
Post by: gpopivanov on August 27, 2021, 05:44:02 PM
This is brilliant. Thank you.
Title: Re: A ruler for measuring USB to stone distance
Post by: Willym on August 28, 2021, 02:04:37 PM
Great idea! I have no 3D printer, but I will try to make an SVG file for use on my CNC. Either plastic on aluminium.
Title: Re: A ruler for measuring USB to stone distance
Post by: micha on August 29, 2021, 12:25:04 PM
Here are two files for those who want to cut the USB ruler on a CNC mill or laser.
(It is just a reduced 2D version with fewer lines.)
Thanks to Urban for his kind permission!

Mike

Title: Re: A ruler for measuring USB to stone distance
Post by: Willym on August 29, 2021, 05:02:43 PM
Thanks Mike. I just cut one to a file that I made, it looks identical to yours. I used a 45 degree V bit, V carved the numerals, and cut the graduations 0.5 mm deep. I used Lexan , but I would cut a little shallower next time to get crisper lines - may 0.35 mm deep. The scale is accurate though. <y photos a little crude - done with laptop against my shirt.
Title: Re: A ruler for measuring USB to stone distance
Post by: Willym on September 02, 2021, 09:53:07 PM
The ruler turns out better in 0.125 Aluminum. This was my first go at machining Al on my CNC, and it turned out OK. The divisions don't show up well in the photo, but are actually easy to read. 
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