Joined
·
15,464 Posts
We had a discussion here, a couple of weeks ago, re trapping material between a fence and the bit, and I believe climb cutting was also in the mix.
Well today I ran into the gentleman who(m) I had mentioned had designed a jig for machining thin strips of Cedar for strip boat building. He, another boatbuilder and I had a great chat about this issue.
First, let me clarify. He has run thousands of meters of Cedar and he says not without incident. He never stands in line with the direction the material might kickback...it has happened, but extremely rarely and only with short lengths. The majority of his raw planks are in the neighborhood of 18' - 20' long. The strips final dimensions are 1/4" x 3/4", and the climb cut leaves them as smooth as a baby's bottom.
He and the other boat-builder both gang saw their planks using 7 1/4" thin kerf blades and fender washers as spacers. I didn't ask but I think they were using three blades(?) on the saw arbor..
Following the ripping, they run the final 'planed' edge with the aforementioned 'trapped material' jigs.
What I took away was that as long as you recognize the potential risk and design accordingly, it's a very productive technique, but it's not for everyone and most definitely not for beginners!
https://oysterbayboats.weebly.com/launchings-and-blog/category/building pictures
I asked him if he had a pic of the jig but unfortunately not...
Well today I ran into the gentleman who(m) I had mentioned had designed a jig for machining thin strips of Cedar for strip boat building. He, another boatbuilder and I had a great chat about this issue.
First, let me clarify. He has run thousands of meters of Cedar and he says not without incident. He never stands in line with the direction the material might kickback...it has happened, but extremely rarely and only with short lengths. The majority of his raw planks are in the neighborhood of 18' - 20' long. The strips final dimensions are 1/4" x 3/4", and the climb cut leaves them as smooth as a baby's bottom.
He and the other boat-builder both gang saw their planks using 7 1/4" thin kerf blades and fender washers as spacers. I didn't ask but I think they were using three blades(?) on the saw arbor..
Following the ripping, they run the final 'planed' edge with the aforementioned 'trapped material' jigs.
What I took away was that as long as you recognize the potential risk and design accordingly, it's a very productive technique, but it's not for everyone and most definitely not for beginners!
https://oysterbayboats.weebly.com/launchings-and-blog/category/building pictures
I asked him if he had a pic of the jig but unfortunately not...