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Lexan Thickness?

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I use .0625" (1/16") polycarbonate and .031" (1/32") circuit board for baits.  There's certainly no "must do" as far as lip thickness.  If yours seems stiff enough and durable enough, then it is.  I like to settle on a thickness and stick with it because it helps reduce the variability that I have to contend with when building a new design.

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I use .0625" (1/16") polycarbonate and .031" (1/32") circuit board for baits.  There's certainly no "must do" as far as lip thickness.  If yours seems stiff enough and durable enough, then it is.  I like to settle on a thickness and stick with it because it helps reduce the variability that I have to contend with when building a new design.

 

X2

 

Ben

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One thing I am still struggling with is getting the slots cut properly, so lets start from here1.5mm is the thinnest I have been able to source locally, I have a band saw and with that it would be easy to get a nice accurate slot, but the kerf is closer to 1mm.  I could expand it with emery board  or something similar. Though I would prefer to cut the slot in one step. I think I would have to bump up to 2mm lexan if I was to try a double cut on the band saw or if I seal with epoxy will that the gap be filled in enough to reliably mount the lip.

 

At what size of bait would you jump up to 1/8" (table saw kerf) I was personally thinking 5" and up, or can it be smaller.

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Aulrich - I don't see the problem of making a second half cut with the bandsaw, assuming that the blank is still flat and not shaped.

 

I prefer a bit of slop in the slot, to leave room for the glue attachment, and adjustment if necessary.

 

If the body is already shaped, then you are going to have all kinds of problems, trying to control the direction and the angle and looking after your fingers all at the same time - not good, bordering on dangerous I would say.

 

I have tried the single cut and then opening with a Dremel cutter, but it is messy, with the cutter binding in the slot. Also, I find that the cutter does not guide well and you lose the angular control. It's flat body and double bandsaw cut for me.

 

Dave

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If I need to widen the slot by a small amount instead of backing the blank out and starting another parallel cut I hold one side of the finished cut against one side of the blade as I back the blank out away from the blade. The blades teeth have a set to them so the finished cut is a wee bit wider than the thickness of the blade. This "set" is put into the blade to keep it from binding in the wood. By pressing one side of the cut slot against one side of the blade you are able to take off minute amounts and slowly widen the slot.

 

Ben

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I got a 'feel' of my circular hand saw the first day I got it - nearly lost all the fingers of my right hand. The saw that I had owned years before, had a grip handle on the right side. My hand automatically went for it and touched the blade. Ripped a chunk of fingernail off two fingers, but I consider myself very lucky.

 

The circular saw is a brutal tool. Take care around all power tools, but particularly circular saws, table saws and routers.

 

Dave

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I use a lot of small lip's and this limits the distance from my hand to the band saw blade, so a few years back I fleaBayed a 'Ticket Punch' which punches a nice slot any length up to about 3/4"' long, nail clippers are also good--- I use 1mm Polycarbonate though (.040 ")

Pete

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When I use a table saw I use a jig I made to hold the bait square to the length of the bait and the width of the bait. The angle of the bill is controlled by to moveable arms. A holding board is large enough to keep my hands away from the blade. I use a height gauge to adjust the blade to the desired height.

It's a slide jig that runs in the reset channels. It works pretty well, but has some limitations. I'm going to do some modifying to get more variables from it.

To do this the bait does need a wee bit of square sides. I'm starting to have fixed profiles now, so the band saw is coming into play more. I went to a wood work store and bought and attachment to accept a 3/16" blade for the 18" band saw. Honestly I like the band saw better now. I feel more safer.

Cheers,

Dale

Edited by DaleSW
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I use a lot of small lip's and this limits the distance from my hand to the band saw blade, so a few years back I fleaBayed a 'Ticket Punch' which punches a nice slot any length up to about 3/4"' long, nail clippers are also good--- I use 1mm Polycarbonate though (.040 ")

Pete

Pete, can you post a picture of your Ticket Punch.  I'm having trouble visualizing how it might work.

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With both the band saw and the table saw I was planning I was thinking of some sort variant on a panel cutoff sled or tenon jig

That is a smart idea!

Making a sled with a hold down, and variable angles marked on it to align your slot for different baits, would work well if you want to make the same cut over and over.

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Unfortunately a jig would not have kept me from making the boo-boo. It was sheer stupidity that got me. The band saw had started making an unfamiliar noise so I turned the saw off and started checking things such as a loose blade, bearing slack, etc. Found nothing so I turned it back on and the noise was still there. I wanted to see if there was any slop in the bearing of the drive wheel and decided to press my thumb against the running wheel to check for any sideways movement. Forgot about the teeth of the blade sticking out away from the drive wheel just enough to grab anything pressed against it. Like I said before. Sheer stupidity.

 

I was lucky that it turned out to be little more than a good reminder of keeping your attention focused on what's going on around you. Also found out that blood really stains the puddin' out of wood and it's not a very good sealer.

 

Ben

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Sorry Bob, just got round to taking some pics. Hope you can figure out how it works.

Pete

 

Pete, I have a punch like that buried somewhere in my garage.  It is open ended, and I never could figure out how it could be used.  I think it was originally a leather punch that I picked up at a swap meet, just because it looked intriguing. 

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