re: Double sided tape

I use both DS tape or blue tape and CA depending upon what I am doing.  The BT & CA is usually easier when attaching to my CNC bed because there are gaps in the bed that sometimes do not work as well with DS Tape  I buy the widest BT rolls I can find and I can cover a large area quickly.  The biggest advantage with the BT is no residue to clean up from either the bed or the workpiece.  It is especially handy for large pieces that are difficult to find clamping solutions to the CNC bed.    You also get a few seconds (unless you use activator) to get it into the right position while the DS tape  sometimes is less forgiving.  If your first position is not quite right, moving it either messes up the DS tape  causing you to start over or doesn't stick as well the second time.  I think that the BT also sticks better when there is dust on either surface because I generally cover a larger area than I do when I use DS tape.  

For about a year now, I have been using hot glue to attach bowl blanks to wood face plates, especially when using my Ringmaster.  I have had one release but I usually have a hard time getting the glue to release and have to dribble some DNA on the wood to help with release.  I think that the one that released may not have been totally flat,  though it worked fine the second time I attached it.  I typically only use hot glue when I can apply it just around the edges.  Putting it between two surfaces doesn't work that well because the thickness of the glue layer is unpredictable and uneven.  You also do not have much time to apply glue and attach it before the hot glue starts to set.