lawrence
02-18-2013, 03:18 PM
Ok, I KNOW we're not supposed to use extruded acrylic, but that's all I had...
http://i171.photobucket.com/albums/u313/ldr_klr/Carvewright/nm rulers/P11306421024x768_zps67db6c0a.jpg
http://i171.photobucket.com/albums/u313/ldr_klr/Carvewright/nm rulers/P11306451024x768_zpsf58cd46c.jpg
I did these etchings using a sled. To create the etch I determined how deep the centerline text would carve and then made the lines match up. I then "jogged to touch" onto the edge of the sled which was about 1/32 higher than the acrylic itself. This made the carve very shallow.
There is no filler/paint in the numbers- the bit leaves a white "residue" behind which works well to make the etch visable.
Every minute or so I stopped the bit and "flicked" off the gummed up "booger" from my bit. (the carves were only about 8 minutes long so no biggie)
I wouldn't recommend it- but just wanted to see if it COULD be done.
By the way, the rulers are nautical mile "scale rulers"- you use them to gauge "minutes from" distance for different speeds along a chart for navigation/etc.
Lawrence
http://i171.photobucket.com/albums/u313/ldr_klr/Carvewright/nm rulers/P11306421024x768_zps67db6c0a.jpg
http://i171.photobucket.com/albums/u313/ldr_klr/Carvewright/nm rulers/P11306451024x768_zpsf58cd46c.jpg
I did these etchings using a sled. To create the etch I determined how deep the centerline text would carve and then made the lines match up. I then "jogged to touch" onto the edge of the sled which was about 1/32 higher than the acrylic itself. This made the carve very shallow.
There is no filler/paint in the numbers- the bit leaves a white "residue" behind which works well to make the etch visable.
Every minute or so I stopped the bit and "flicked" off the gummed up "booger" from my bit. (the carves were only about 8 minutes long so no biggie)
I wouldn't recommend it- but just wanted to see if it COULD be done.
By the way, the rulers are nautical mile "scale rulers"- you use them to gauge "minutes from" distance for different speeds along a chart for navigation/etc.
Lawrence