Roger Linnell Posted September 15, 2015 Report Share Posted September 15, 2015 the only thing I remember about posting pictures on this site is that it was very difficult. Quote Link to comment Share on other sites More sharing options...
RayburnGuy Posted September 15, 2015 Report Share Posted September 15, 2015 I don't have a dog in this hunt, but had an idea. Has anyone ever tried modifying a small, handheld tire pump? Like the ones used to air up bike tires? Ben Quote Link to comment Share on other sites More sharing options...
Dave Rennie Posted September 15, 2015 Author Report Share Posted September 15, 2015 Does this count as home made . That looks awesome! Did you make/modify it? Quote Link to comment Share on other sites More sharing options...
Dave Rennie Posted September 15, 2015 Author Report Share Posted September 15, 2015 I don't have a dog in this hunt, but had an idea. Has anyone ever tried modifying a small, handheld tire pump? Like the ones used to air up bike tires? Ben I was thinking of a bike pump the other night, and wondered if instead of using it as an injection, use it as a pump/compressor to a air tight chamber where the plastic is placed. Quote Link to comment Share on other sites More sharing options...
Cami Posted September 15, 2015 Report Share Posted September 15, 2015 Perhaps this Post could be useful for you: http://www.tackleunderground.com/community/topic/28783-silicone-injector/?hl=cami Bye Cami Quote Link to comment Share on other sites More sharing options...
dr.olds Posted September 15, 2015 Report Share Posted September 15, 2015 That looks awesome! Did you make/modify it? I made this one from scratch. It isn't really home made in that I used a lathe and mill to make it. Quote Link to comment Share on other sites More sharing options...
Dave Rennie Posted September 15, 2015 Author Report Share Posted September 15, 2015 Perhaps this Post could be useful for you: http://www.tackleunderground.com/community/topic/28783-silicone-injector/?hl=cami Bye Cami Thanks Cami, I ready your thread. Are you still using the silicone injector, does it work well? Dave I made this one from scratch. It isn't really home made in that I used a lathe and mill to make it. Great job! Quote Link to comment Share on other sites More sharing options...
Vodkaman Posted September 16, 2015 Report Share Posted September 16, 2015 I made this one from scratch. It isn't really home made in that I used a lathe and mill to make it.Marvelous piece if kit - you made it yourself, so it counts as home made. The lathe and mill are wonderful, professional tools and you are fortunate to have access, but they are still only tools.Dave Quote Link to comment Share on other sites More sharing options...
Cami Posted September 16, 2015 Report Share Posted September 16, 2015 Yes, I'm still using the silicone syringe for my little batches and yes it works well. I've only added an O-ring on the ABS piston to be sure of no clearance during repetitive utilization. Bye. Cami Quote Link to comment Share on other sites More sharing options...
Dave Rennie Posted September 16, 2015 Author Report Share Posted September 16, 2015 Thanks Cami. Dave Quote Link to comment Share on other sites More sharing options...
Dave Rennie Posted September 16, 2015 Author Report Share Posted September 16, 2015 Heres a vertical mold i made, the top was too thin and it cracked after the first shoot... But the one bait i got was bubble free My current project is a multi cavity using Dave's vacuum method.. And its almost finished! Is there somewhere I can read about Dave's vacuum method? Quote Link to comment Share on other sites More sharing options...
JRammit Posted September 16, 2015 Report Share Posted September 16, 2015 Is there somewhere I can read about Dave's vacuum method? Heres where i first saw it http://www.tackleunderground.com/community/topic/10718-hairy-worm/?fromsearch=1 Ive used it once with good results ("The Alien" in gallery).. Working on my 2nd vacuum mold now, when its done i will share Quote Link to comment Share on other sites More sharing options...
Vodkaman Posted September 16, 2015 Report Share Posted September 16, 2015 (edited) All will become clearer when JR posts his article, but here is the original article. The images got deleted, but I have replaced them at the end of the thread. http://www.tackleunderground.com/community/topic/10718-hairy-worm/?hl=hairy JR beat me to it, the same link. Dave Edited September 16, 2015 by Vodkaman 1 Quote Link to comment Share on other sites More sharing options...
Roger Linnell Posted September 16, 2015 Report Share Posted September 16, 2015 my injector 2 Quote Link to comment Share on other sites More sharing options...
Dave Rennie Posted September 16, 2015 Author Report Share Posted September 16, 2015 Thanks gents, I'll read over the thread. Quote Link to comment Share on other sites More sharing options...
Dave Rennie Posted September 16, 2015 Author Report Share Posted September 16, 2015 20150915_091004_zpshjs6x9fj.JPG20150915_091024_zpsw3mccop9.JPG my injector That looks great! How did you make it? Thanks Dave Quote Link to comment Share on other sites More sharing options...
Dave Rennie Posted September 16, 2015 Author Report Share Posted September 16, 2015 Thanks for the info. It looks great to me. Quote Link to comment Share on other sites More sharing options...
Roger Linnell Posted September 16, 2015 Report Share Posted September 16, 2015 That looks great! How did you make it? Thanks Dave I drilled out the original nozzle and used JB Weld to attach the air fitting to the cap. Then put a few screw in the piston to help hold the silicone, oiled the inside of the barrel at the end of the barrel as a release agent, pushed the piston up to the oiled area, and placed silicone on top of the piston. Let dry a couple days Quote Link to comment Share on other sites More sharing options...
Vodkaman Posted September 16, 2015 Report Share Posted September 16, 2015 Bob - I remember the Jaddon stuff. The lures were very successful. Dave Quote Link to comment Share on other sites More sharing options...
Dave Rennie Posted September 16, 2015 Author Report Share Posted September 16, 2015 I drilled out the original nozzle and used JB Weld to attach the air fitting to the cap. Then put a few screw in the piston to help hold the silicone, oiled the inside of the barrel at the end of the barrel as a release agent, pushed the piston up to the oiled area, and placed silicone on top of the piston. Let dry a couple days Thanks Roger! There are some great home made injectors posted so far, I wish I had more tools at my disposal. Quote Link to comment Share on other sites More sharing options...
Dave Rennie Posted September 16, 2015 Author Report Share Posted September 16, 2015 This was my plan for my first 2 part mold, but now this vacuum idea has got me thinking that it could be incorporated. Made of RTV, this will be filled with super soft plastisol for UL and dropshot lures, and to make super soft tails for bigger shads. The pink lines are air vents. Will this idea work? Thanks Dave Quote Link to comment Share on other sites More sharing options...
JRammit Posted September 16, 2015 Report Share Posted September 16, 2015 (edited) This was my plan for my first 2 part mold, but now this vacuum idea has got me thinking that it could be incorporated. Made of RTV, this will be filled with super soft plastisol for UL and dropshot lures, and to make super soft tails for bigger shads. The pink lines are air vents. Will this idea work? Thanks Dave I like how youve made use of every inch of space.. And making many different baits in one mold, why not?.. Less time spent making multiple molds.. Great ideaFirst problem i see is trying to shoot one cavity through another... The plastic will flow through the small passages, but as it thins out it will cool, blocking the passage off and leaving the one behind it void Edited September 16, 2015 by JRammit Quote Link to comment Share on other sites More sharing options...
Dave Rennie Posted September 16, 2015 Author Report Share Posted September 16, 2015 Thanks JR, I thought that might happen. I'll drop the idea of shooting through cavities then. 4 questions please. 1. The vacuum idea is to combat tricky pours, are any of the baits in my picture tricky pours, or could I get away with injection (copper pipe & dowel as you suggested)? 2. I've read on here about people having problems pouring ribbed lures. Would something like a crappie thumper cause problems in a mold like I've drawn? 3. Is there a recommended diameter for sprue and vents? 4. If my paddle tails were faced down rather than on their side, how would I make a vent at the bottom of the paddle tail, as this would be inside the RTV? Thanks Dave Quote Link to comment Share on other sites More sharing options...
JRammit Posted September 16, 2015 Report Share Posted September 16, 2015 1) vaccum venting is an alternative to injection.. Either method would work for your mold 2) deep ribs can be a problem, i have ribs the size of o-rings (in fact, i used o-rings to make them) on most of my baits and have never had a problem getting them to fill 3) make the sprue as large as the bait will accept.. If you vent out the side of the mold, size is trial and error unfortunately... Which is why i started venting up 4) fluid follows path of least resistance.. Your vent will be smaller than the paddle, so no matter where you place the vent the pattle will fill first Quote Link to comment Share on other sites More sharing options...
mark poulson Posted September 16, 2015 Report Share Posted September 16, 2015 20150915_091004_zpshjs6x9fj.JPG20150915_091024_zpsw3mccop9.JPG my injector That looks like a really clever setup. Did you adapt an existing caulking gun, or does one come with the alum tube? Quote Link to comment Share on other sites More sharing options...
