Can any recommend an adhesive to glue 1/8 inch thick 12 inch square
brass to a backing plate during
the routing of parts on a CNC? I don't use cutting fluid. Ideally, it
should be easy to remove the parts from the backing plate after routing
I have done grinding of ceramics by bonding the ceramic to a steel plate
using parafin wax. I heated the ground steel plate in hot water or in
an oven if the wax is not melted by the hot water, rubbed a thin layer
of wax from a block onto it(after drying the plate) and then laying the
part onto the plate, making sure that the wax was between both. I then
placed the plate on something to cool it with a weight to keep the part
in close contact until the wax hardened. If you don't think the wax is
enough you can get resin sticks that use higher tempatures, used in the
There is also a waxpaper type material used for the same procedure,
the only difference is the paper is made to higher precision. We got
some from an ad in Modern Machine Shop but I can not remember the name
of the product at the moment. It did work well thought.
Why not have the cnc make upteen passes of small increments?
That's what it's for! Double sided masking tape should do it,
I've used carpet tape but it tends to gum up the cutter a little.
The person who introduced me to this proceedure recommended something
like the following. They are resin/lacquer sticks used for repairing
scratches in furniture. I am not sure at what tempatures you would have
to heat to for these. The clear would be my choice. While they are in
Canada, they do ship to the US, and you may be able to find a local
I have done acres of this kind of cutting
The best way is to cover the back of the piece with transfer tape for
Spray your table and the back of the material with 3m77
/ Let dry for about 2 minutes and place the brass on the table/
It won't move.
If you feel better just duct tape the edges.