one wavy line of text on 3 line carve

[Wood Art 1]

The last line to carve on these plaques wanders above and below the line. Centerline. plaque is 8" tall x 5.5" wide. Using a Bergerud fixture so all that pieces are a precut size. The "May 3" were the last two to come off the CW. The other 8 came off last week. I have about ten examples with the same font and layout that came out OK inbetween last week and the May 3 cuts. Driving me totally nuts - it's only a short drive.
Is this a font style issue?

[bergerud]

That is curious. They are off in the same way. I wonder what the cutting order of the letters was. I this 1.187?

[Wood Art 1]

version 3.1. This is the last line to carve. The 0 is first, M is 2nd. 2 is third...walked away frustrated at that point.

[myshop1044]

Jerry it looks like the wood is moving, is it tight in the jig?

[bergerud]

Jerry it looks like the wood is moving, is it tight in the jig?

Perry may have a point. The board is only under one roller when the text is cut.

Jerry, do you have sand paper grip strips on the rails?

You might also check the head pressure.

[Wood Art 1]

I have sandpaper on the rails, and I grab the piece to lift the jig to test that it is in tight before putting it into the CW. I will check head pressure this morning and post the result. The jig is approx. 24" long and the piece is always loaded somewhere near the center, wherever I happen to place it (at a random location). The text is set .5 inch from the top of the board. The font is Arial Rounded MT Bold - bold. The text area is 0.5" tall by up to 4.75" long.

[SteveNelson46]

My next step would be to try it on a piece of scrap without the carrier board. If that isn't the cause at least it rules out one possibility.

[bergerud]

I wonder if the teeth on the brass roller could have chewed up the bottom of the carrier.

[Wood Art 1]

Thanks to you guys for helping me focus.
Sunday Morning test. Machine temp 46 deg F. Head pressure at 65#. Lubed posts and screws - Now 75-77#. Rebuilt bottom rails on the fixture with UHMW yesterday before last test.
1) Put same board in fixture- tested for tight by lifting fixture by holding board. Pic "fixture hold".
2) fixture into CW. tested rail clearance - slides completely thru without binding.
3) Used same MPC as yesterdays test, Carving order 0M,23y1a6. same result Pic "Test 1"
4) Used same MPC - changed attachment at top from 0.5" to 0.7". Result Pic "test 2".
Questions???
1) at what point between .5 and .7 does the wavy line get corrected? more tests required!
2) Is this a software problem, hardware problem, or a font problem?
3) Should I just shut up and accept this solution?

[bergerud]

I tried it right on the edge. (Designer 3 and its firmware.)