Perhaps try cutting not so deep also soaking the wood in oil for a few hours before cutting can greatly reduce chipping and tearing I do that
For some wood threads Bill From: legacy-ornamental-mills@googlegroups.com <legacy-ornamental-mills@googlegroups.com> On Behalf Of cdkr...@gmail.com Sent: Tuesday, October 17, 2023 9:15 AM To: Legacy Ornamental Mills <legacy-ornamental-mills@googlegroups.com> Subject: Re: checkering videos Made tiny tiny chips today. Really bad choice of wood. Didn't think it would crumble like it has. My other blanks are scrap oak pieces, and they might be as bad. I'm going to adjust to a verified common checkering pattern of 18 LPI selected from the range of available checkering patterns and tools that run from 16 -32 LPI. And reduce the number of starts to 72 which gets me in the same ballpark of work diameter, which my target is about 1 1/4" give or take. This intersection piece should clean up pretty well. It's just real fuzzy. The blue circled area is what I worked on for cleaning up. It goes fast and the ridges are crisp in that area. Lessons: 1. A progress chart of hole positions is crucial to success. 2. And I am pushing the limits of the REVO rigidity because you can see every little inconsistency produced by tiny flexing in Z axis. 3. Choose better wood. Machine cutting is different than hand cutting from scratch. But this, as tedious as it is, is still much faster to get accurate layout, me thinks. I also restricted the data input for checkering lines per inch to what is available for touch up tools. It seemed like a good idea at the time. Time to think of Christmas trinkets..... DanK On Sunday, October 15, 2023 at 10:43:05 PM UTC-4 Tim Ziegler wrote: Thanks Dan Kind Regards, Timothy J. Ziegler Ziegler WoodWork & Specialty Ziegler Laser Worx LLC 14171 160th Ave. Foreston MN 56330 320-294-5798 <tel:(320)%20294-5798> shop 320-630-2243 <tel:(320)%20630-2243> cell On Sun, Oct 15, 2023 at 8:55 PM cdkr...@gmail.com <mailto:cdkr...@gmail.com> <cdkr...@gmail.com <mailto:cdkr...@gmail.com> > wrote: The next video shows how I move the vernier arm after exhausting the span it offers. 80 starts is a good example to use because it requires the half degree resolution of the vernier. So I have done the first nine passes as this picture shows. No touchup on osage orange. Not the best choice. <https://groups.google.com/group/legacy-ornamental-mills/attach/6fc0e81371200/Checkering3.JPG?part=0.1&view=1> It looks rougher than it really is because the fuzz makes the cuts look irregular. It is a bit due to flexing in the machine, but should clean up nicely with checkering tools. Which reminds me. My checkering tools are 18 lines per inch...so don't ask my why I chose 21 lines for this sample! It's because.....well, you know..... Now to move the vernier <https://drive.google.com/file/d/1D13KWyNWbvLy_1e8H-gr0LHaE-GJCZZW/view?usp=sharing> to the next step. DanK On Sunday, October 15, 2023 at 9:45:41 PM UTC-4 cdkr...@gmail.com <mailto:cdkr...@gmail.com> wrote: The first video is showing how I adjust the vernier positioning chart for the 80 starts I'm using on the sample checkering. I suggest doing a print preview. "File>Print Preview" and it will show you what to expect. You can print it from the preview or go back to "File>Print" from the main menu. Here is the first video <https://drive.google.com/file/d/15C2zrueB6u3XI3ax3em1S5PiSfyHjoVi/view?usp=sharing> which will be available in a little bit until I take it down for the space. DanK On Sunday, October 15, 2023 at 9:37:56 PM UTC-4 cdkr...@gmail.com <mailto:cdkr...@gmail.com> wrote: I finally got the dynamic vernier index positioning chart workable. I can't be sure of error free yet, but it works accurately for 80 starts. It took me awhile to stretch my head around the expanded vernier operation on these high counts. It turns out that one has to go around the index several times in some cases. I had assumed it would be just once, like the simple indexes, and that was a stumbling block. Because the vernier has to be moved once the moves exhaust it's span, that creates a gap in the machining of the workpiece. Not to worry, it finishes those gaps on the next go arounds. I am debating about putting the three video clips together, but I think it does better separately. This is not a video friendly site, so I'll put them on my Google drive for a bit and post the links. This is how I will link the description to help understand it's corresponding video. Not a pro photographer, but I hope it explains the basics well enough. I'm attaching the now versioned Legacy Pitch Chart V10.1 which has the dynamic vernier positioning chart. It is set up with print ranges already, so once you select the number of divisions to cut, the chart will adjust and you just print it. It made it possible for me to keep track of what move I just did and what the next one is supposed to be. Again, no guarantees if you use other than Libre Office Calc. DanK -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental...@googlegroups.com <mailto:legacy-ornamental...@googlegroups.com> . 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