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View Full Version : What's the fastest and easiest way to cut these parts.



knight_toolworks
10-20-2009, 02:36 AM
I made some templates for a ski company and they found the templates would not hold up so I get to cut the ski blanks out.
We are talking about 500 or so blanks that are ripped and cut to length. I don't think they are super accurate in the cutting as they would have been trimmed on a shaper using the templates. so my thing is whats the fastest way to put these on the table? I was going to to use a sheet of stock cut in pockets for the banks to sit in and use my table vacuum to hold them in place. but if they are a bit sloppy the pockets won't do anything but help place the wood. these are 4" or 6" wide and about 65" .5" thick depending on the bank. the wood is bamboo plywood but just vertical grain no cross grain. the cuts are only along the length of the board.
So I think the sheet is out and I am debating on ways to do this. I need to cut them fast and be able to change them fast to make money.
a couple of ways I thought of that only register one edge. place strips of wood on the table that each size rests against. with just a bit extra space to allow oversized pieces of wood. this will cover my table so vacuum will work ok. but I don't know if the vac will hold these well enough on it's own. the stock is pretty flat on it's own. I can also use this method with a few brads on each side of the strip to help hold them in place.
I can use a brandy vac idea by building a box thats thick enough for my shopvac hose and a pocket that the wood will only butt against one side and one end. I think this would be strong enough.
I also need to cut these as fast as I can cut have them cut out smooth. depending on the hold down method will depend on how fast I can cut them. I will use either a 1/4" downcut or a 5/32" but the 5/32 makes the shavings part of the hold down so that helps a lot. but can I cut these fast enough in two passes with that bit? I would like to cut at 4ips in two passes.

mitch_prest
10-20-2009, 08:04 AM
Steve

even with 404 words, I am not clear.. I think a picture or a quick sketch would be better than 596 more..

mitch

erik_f
10-20-2009, 11:18 AM
I was going to try and explain my thoughts, but a picture is worth at least 404 words. In my design the edges hang over. This way you never have to worry about loss of vacuum.

7890

knight_toolworks
10-20-2009, 12:25 PM
What's the fastest and easiest way to cut these parts.
sorry I did not have a chance to draw it up. I am thinking of using l squares to locate the pieces. so one side and one end are registered. they will be side by side so I won't loose much vacuum.
but I don't know with all those strips of my 2 fine vac setup will hold them in place. so I was debating on a box using the same l squares but hooked directly to one or two fiens and slots under the wood to get direct vacuum.
the bad part of the box is I have to build it and I only have mdf so I would have to seal it too.

tim_mcknight
10-20-2009, 12:57 PM
I would think Erik's design would work fine but you would nee to add one more registration block for an end stop.

knight_toolworks
10-21-2009, 02:24 AM
here is what I did. this gives room for different widths. I goofed a bit on the smallest ones and the slots are too close to the cut. I need to make another top. I used plywood so I would not have to seal mdf but that kept me from being able to flatten the top.
bamboo is a bit strange right now the main cut is 3ips for .45 and a cleanup pass at 1.5ips as a climb cut gives one of the smoothest finishes I have seen on solid wood. here is a better picture link
http://i154.photobucket.com/albums/s266/knighttoolworks/cnc%20jigs%20and%20parts/P1010219.jpg

7891