- Joined
- Mar 5, 2012
- Messages
- 161
I cut these large letters using a waterjet and plan to attach them to a backer board, most likely 3/4 inch thick maple plywood. They are 1/2 inch thick and approximately 14 inches tall. Yesterday, I made the spacers from 9/16 aluminum rod. They will hold each letter off the background by 0.75 inches. I'd like to use threaded rod, because I don't know how to weld aluminum and don't want to learn now! My plan was to use 1/4 - 20 threaded rod (or bolts).
Questions:
-Thinking about corrosion...can I use stainless, with permatex, or should I stick with aluminum? The sign will be inside.
-The letters will be drilled using a drill press. I suppose the threads only need to extend 1/4 inch into each hole. I've never tapped a partial hole like this. Is there anything to consider? I'm concerned that the tap will bottom out before making suitable threads.
Thanks
Jim
Questions:
-Thinking about corrosion...can I use stainless, with permatex, or should I stick with aluminum? The sign will be inside.
-The letters will be drilled using a drill press. I suppose the threads only need to extend 1/4 inch into each hole. I've never tapped a partial hole like this. Is there anything to consider? I'm concerned that the tap will bottom out before making suitable threads.
Thanks
Jim