Author Topic: stencil making  (Read 1352 times)

Offline ctom

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stencil making
« on: 01/30/22 11:37 UTC »
I made a stencil vacuum box a while ago got it set up today with the heavy duty shop vac and a box of acetete film to things try. The new lipless cranks from Do-It work slick but I am going to have to make some resin Half-bait castings with flat sides to do the thicker crank and stick baits. No problem there and next on the list.

The acetate film I used for transparencies to use with an overhead projector when I taught a Panfish and Crappie class at our local comminuty ed. I also used them when I travels and did seminars at Gander Mountains and other bait and tackle companies plus I got good use from them when I went into one of our local high school's outdoor biology classes and worked with the students during the fishing phase of the class. Jig making, jig tying, soft plastic bait making....did it all with them then went along on the field trips to assist in getting them on the right path. Great times.

The vacuum box is simply a box with a top od perforated stainless steel sheet and a floor drain fixed in the bottom. A couple wraps of duct tape secures the shop vac end to the drain fitting. Works slick.
I'll be making some plaster casts of half baits then will seal the plastic mold with thinned out seal coat and couple times them make resin casting that will fit flat on the steel fabric without all of the depth a whole bait has. I'll do both sides of each bait in resin.

Right now I simply leave the bait in the stencil and mark the areas to be cut out with a fine magic marker. I'll be using either a Dremel of a hobby knife to do the cutting. As I make the plaster castings and then the resin castings I'll get some pictures up so ya'll can get an idea of what I am doing.

There are good ships
and wood ships
ships that sail the sea
but the best ships are friendships
and may they
always be ......An Irish Toast

Offline Agronomist_at_ia

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Re: stencil making
« Reply #1 on: 01/30/22 20:24 UTC »
I've seen guys make them. It be cool if do-it or someone would make some nice ones a guy could buy.

Offline ctom

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Re: stencil making
« Reply #2 on: 01/30/22 20:54 UTC »
They are all over the internet, but I like making my own stuff. And I use all sizes of old combs, lace, artificial plant parts, copper scrub pads and florist moss as stencils. The world is full of things one can use to stencil. I used to camo recurve bows for an archery club's members and used good old ditch weed as a stencil....did a beautiful job. Even a couple deputies liked it, but didn't ask where I got it.
There are good ships
and wood ships
ships that sail the sea
but the best ships are friendships
and may they
always be ......An Irish Toast

Offline Muskygary

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Re: stencil making
« Reply #3 on: 01/31/22 05:55 UTC »
Looking forward to seeing your work Tom. You always give me some great ideas.

Offline olsarge

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Re: stencil making
« Reply #4 on: 01/31/22 10:06 UTC »
Very nice Tom.  I remember you posing about this in the past but had forgotten all about it.  Stellar work.
I find it incredible that I have to explain to a grown American citizen that taking a knee during the National Anthem is disrespectful.

Offline ctom

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Re: stencil making
« Reply #5 on: 01/31/22 10:53 UTC »
Picked up the plaster of paris this morning and plan to get the castings using it done today. Then the resin.
There are good ships
and wood ships
ships that sail the sea
but the best ships are friendships
and may they
always be ......An Irish Toast

Offline ctom

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Re: stencil making
« Reply #6 on: 01/31/22 15:54 UTC »
I have 6 plaster castings of 7 baits done now. I'll let the plaster dry and cure for a few days, then spray some thinned out CS Seal Coat into the cavities. I'll let that dry a day, then pour the resin.



The pop is easy to work with and has about an 8-minute working time. I mixed each bait's batch separately. After about 45 minutes of setting time, I popped the baits out of the plaster. The detail in the plaster is outstanding, but the plaster is still quite soft so all I have done to remove any plaster debris from un-molding is to blow it off. I haven't touched the insides of the cavities at all. The plaster directions called for 2 parts plaster and one part cold water. Use water at about 40-50 degrees if you use the pop as the stuff generates some heat while it works and sets, and cracking can happen if you use water that's too warm to start with. I used bottled water from the fridge and did not use more than 1/2 cup at a time. No cracking.

For those wondering, the cavities look a bit rough along the edges and that is fine. When I pour the resin, I will not completely fill the cavities...only up to where the rough edges begin. I'm only after the fine detail along the sides and gills to create the actual stencils. The resin castings will be sanded on the open side so that the blank rests flat on the screen of the vacuum box. When the resin castings are cured enough to work with, I'll crumble the plaster away and off from the resin pieces and give them a bath to get the plaster out of the detailed portions.
There are good ships
and wood ships
ships that sail the sea
but the best ships are friendships
and may they
always be ......An Irish Toast

Offline ctom

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Re: stencil making
« Reply #7 on: 02/04/22 14:07 UTC »
The cavities were just filled here. Now for the wait.



With the plaster molds I decided to use a slow cure epoxy with a set-up time of 7-8 hours. Three day workable cure. I went this route because faster setting resins generate a ton of heat while they set and the plaster could crack if things got too warm. I've got nothing but time so the slower set and cure times are fine by me.

Another benefit to the slower set/cure is the lack of bubbles. Zero so far so the heat gun hasn't been needed to rid any. The product was gin clear so I added a couple drops of purple colorant to it. I'm thinking these castings will make me happy.
There are good ships
and wood ships
ships that sail the sea
but the best ships are friendships
and may they
always be ......An Irish Toast

Offline ctom

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Re: stencil making
« Reply #8 on: 02/06/22 10:24 UTC »
Back to the drawing board. The CS sealed cavities and resin bonded tighter than tight. Thinking I should have used a release agent. Somehow I thought the resin would pop right off the shiny CS finish. Not so. Plenty of plaster and plenty of resin yet so I'll do it all over again.
There are good ships
and wood ships
ships that sail the sea
but the best ships are friendships
and may they
always be ......An Irish Toast