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Has anyone ever tried making one out of a blank or had one made? I have an idea on one I would like to get made but don't know the right avenue to start down. Don't know what would be the right tools or how to duplicate with the right precision on either side or make more cavities of the same design. Any ideas/thoughts? Thanks CF
I knew of a fellow that made one out of plaster of paris, Think the spelling is right.
The following was posted on this thread http://www.crappie.com/gr8vb3/showthread.php?t=61165 by Roberta.
QUOTE "I tired a couple of ways to make my master - cobbled together pieces of existing jig bodies, scupted things out of clay that can be hardened. I probably should have used wood. What I wanted to make were crappie sized versions of some of the bass plastics - tiny newts. bugs, etc. I also made and was fairly happy with some "amoeba" bodies that just sort of jiggle on the end of the hook. Those work pretty well for cold water conditions.
Any way, I made up some plaster of Paris, poured in into a greased shallow plastic dish and placed the oiled (so it doesn't stick) master into the plaster half way and let it set..I was basicially using the same technique, but on a smaller scale, of casting a plaster piece that I used in art school. I tried making two-piece molds so I could have round plastics, but the plastic gets too many bubbles and it never quite matched up. Bubbles are the main problem. If I get an itch to try it again, I'll use a stiffer plaster and take two steps to make my mold.
After it set a while, I pulled out the master and let the whole thing dry thoroughly. Coated with Modge Podge and then poured some hot plastisol in it. Follow directions on the plastisol bottle . "- Roberta
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I am sure there may be other threads on the subject too. Go to Search and type in molds.
Oh, Sorry. I should have been more specific. I'm thinking about a do-it mold blank for a lead head jig. Don't have a clue about the plastics and don't want to even get into plastics at this point. Making and painting jigs is what I'm after for now. Any advice on the lead head jig mold would be much appreciated. Thanks. CF
I had a tool&die guy make several molds from do-it blanks. He acted like it was the hardest thing in the world to do:confused:
Was It pretty expensive? I bet it is kinda tedious, precise work. CFQuote:
Originally Posted by popeyemaker
CF, He sure acted like it was hard. $500. each :eek:for 3 different sizes and he said don't even ask him again. Those guys have to work within 6/1000 of an inch to get certified I have heard. With todays laser guided cutting machines it seems like it wouldn't be that big of a deal. If you wan't to PM me I'll give you the name of a guy that makes molds and some info. about his company.
I have been thinking that My old buddy Jwhite should be able to make me one or 2. Shoot with the CNC machines scan the jig I have and let the machine do the work?
Jeff does it work that way? I have the jig and can get the blank mold. Been wondering about this my self.
Pete
You can make a mold with bondo, make a box out of cardboard, pour half full with bondo, bounce it for 1 minute to get bubbles out, put head half in, wait to cure. spray with non stick cooking spray and drill some alignment holes, pour top half and let cure. grind out lead entry, and good to go. Mikey
This may be something to post on the main forum page so more people will see it, heck I bet we have a machinest or two on our site.
Tim
Their are a couple guys who will make good jig molds and for alot less than 500.00. Go to Tackleunderground.com and do a search. Also search for companies that sell mold making material. There are all sorts of suppliers. Little toy soldiers are made of lead and you need to make a mold for them. Jewlry makers need to make molds etc. But be careful, it is addictive. Good Luck, Pop
well i know the melting point of lead is 600 degrees would do you think bondo would hold such tempratures because of the heating and cooling all the time
i was just wondering about fire brick i know it will hold the temprature but it fragile but that may be a good thing when cutting or carving the cavity just if it could be coated with something afterwards so it dosent break easy jewelers use it when making jewelry
I went to the local votect school talked to the teacher he let his class make mine works great.....
For some custom work check out this guy he does good work. www.shawncollinscustoms.com
I have copied lures in heat vulcanized silicone, and plaster of paris and am about to try an alum one. I can see how machining an aluminum do-it mold would be difficult because you have to design your program for each half based on your measurments of hinge location. It would be much easier to make your own mold without a hing. Im doing 2 half located with dowel pins. I also had a mold making machinist make me a 16 cavity mold out of alum he alon charged me $60:D but broke a bit and stated any other mold would be much more expensive.
The best way would be to cad a program for a mold. I would really recomend taking a CNC milling class at a local community college and making it yourself. It has probably cost me close to $100 just in mill & drill bits just for all shapes, on a cnc your would probably only need maybe 3 bits at most. 6/1000 is really bad. When you make a dowel pin mold your slop runs 2/1000 and your machining should not me out by more than 1/1000. They will help you and you will learn alot you could probably start desiging and making a mold after about 3-4 classes. I am doing mine on a manual mill, and do see some difficulties arising. I also recall someone making silicone mold for people in ny and only charging $30. Molds take alot of time and hours go by fast, a good price would be $150 for any simple design. Once you make a cnc program you could turn out a mold in probably 5 minutes at most. Im making mine all in one piece then cutting in half and everything sould line up, at worst the inside will all line up and the outside will not be flush and then you just mill it flush. Good luck