kb25t17 wrote:The click blade holders are meant to take s the guess work out of blade depth setting. But since the people selling the tool have not posted the specific information related to the distance of movement per click that lack of essential information in the instructions for the tool is creating further frustration. So here is the information that hopefully will find its way into the manual. Each of those clicks represents a tenth of a millimeter, 0.10mm of change of blade depth.
The distance of movement per one full revolution of the adjustment screw in any of the blade holders equals the pitch of the screw. Not all blade holders have the same size of adjustment screw so the pitch may vary with different blade holders.
The click blade holder being sold for the Silver Bullet has a thread pitch of .5 and it is a metric screw. That means the blade will move .5 millimeters for each full revolution of the holder. The numbers on this holder are 1 thru 6, which means 5 adjustments in length can be made from the starting position, a .1mm move per click. If you put the blade flush with the end of the holder while the pointer is on the number 1 then you will move .1mm for each click you make and at #6 position the blade will be extended to .5mm.
If you have the blade extended 1mm when you are on number 1 then you will be at 1.5mm when you are at #6.
But that leaves us with no clicks between .5mm and 1mm or does it? The trick to get to those adjustments is to have the blade extended to 1mm when you are on the #6. Now you can retract the blade back in and subtract length to get to those other .1mm steps between .5mm and 1mm.
Now lets calculate a sample cut on a piece of material with a known thickness for example chipboard that is .02 inches thick.
We first convert .02 inches to millimeters which equals .508 mm. That means if I start with my blade flush at zero on the number one I can't cut all the way through it when I reach .5 mm at the full revolution as my blade won't be extended far enough. Therefore I should start with my blade extended 1 millimeter at the number 6 then move it backwards to retract the blade by .1mm per click until I reaches position #2. So what I am doing is subtracting .4mm from 1mm which then equals .6 mm in blade extension length.
Now if I wanted to cut some clear Graphix plastic that measures .007 inches, which equals .178 mm then I would have my blade zeroed flush with the end of the holder when I was at #1 and then move the holder to click on the number 3. A movement change which equals .2mm. Hopefully that should just cut through the material without cutting too far into the mat.
Hopefully this information will make its way into the BC learning center files on the Click Blade holder.
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