AdmiralSigns
New Member
Place I've been working at got a CNC router about 1.5 years ago and while we've been doing great without signs, we've hit a snag with channel letters. Letter back and faces are accurate(with the faces being outline offset), but now our returns don't seem to be matching up. At first we thought it was an issue of the faces not matching the backer and returns. I called a Computerized Cutter technician and gave me the usual steps(Notcher file first, cleanup, .-02 inline for letter backs, compensate for Bit width, etc.) and the backs fit inside the returns, but recently we've been having issues having faces fit on the returns. A .12" offset used to work, but sometimes we needed to go all the way to .25, which would still leave one side too open. I noticed that even when we make returns of letters that are literally just Lines with no arcs(letter T for example), the returns still come off a bit warped. We don't weld the returns, but use a Clinching machine. I just don't want them to have to waste time having the cut the faces manually(since that's why they got the router for).
For anyone who uses an AccuBend Freedom, are there any self imposed guidelines you use when making the notcher files? I've read making sure stroke width is more than 1", sometimes even not even below 2", and if we HAVE to make serif letters, to make sure the serifs are also at least 1". We clean the Freedom regularly as well.
For anyone who uses an AccuBend Freedom, are there any self imposed guidelines you use when making the notcher files? I've read making sure stroke width is more than 1", sometimes even not even below 2", and if we HAVE to make serif letters, to make sure the serifs are also at least 1". We clean the Freedom regularly as well.
