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robbor

Diy mold frames

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here are some pics for you guys of some pics f my old mold frames for making jig molds and ice lure molds. I did these atleast 10 years ago. Also u can use jewelry molds and vulcanizers

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Edited by robbor

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These were just made with a drill press and an xy table and some time.  And I just vulcanized the molds in the oven for an hour

Edited by robbor

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Top and bottom jigs are mine. The larger one is 1/100 . For scale the white head is 1/500th oz. the small jig at the top is I want to say a size 20 hook

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Edited by robbor

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Very nice Robbor. I wish I had an x, y table for my drill press. I would be able to do so much more customization to my molds.

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Just wondering what material do you use to make the mold itself??? And I assume it is for pouring lead. I have made some molds myself using bondo but is tends to break away with time.

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11 hours ago, dog1660 said:

Just wondering what material do you use to make the mold itself??? And I assume it is for pouring lead. I have made some molds myself using bondo but is tends to break away with time.

It’s just white hi temp silicone for spincasting from a spin casting mfr. I bought a 12” round and just cut it up. There is a place on eBay that sells blue Nicem silicone that is easily avail.  Place ships out of florida. They don’t se

the company is waymil on eBay that carried the blue nicem. If u contact them they will list on eBay w free shipping I believe

you should be fine using any real hi-temp spin casting silicone. A premium jewelry silicone should work also . Castaldo gelato should work good and what ever the white castaldo silicone is should also be good. These silicones will prob give you 1,000 good casts. 

Its no comparison to pop molds at all. These r professional silicone. You just put mica powder wher u want the mold to separate. 

I have even done runners/gates so small that when the jig is cast there is just a tiny lead wire left to cut or separate. But I do use a home made bottom pour pot and it injects like a dream

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Edited by robbor
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Robbor, thank you for the info. I will look into that. I have also recently tried alumilite as well and that seemed to work well for small molds.

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I would guess I’d come out with better quality and durability molds with the silicones I mentioned. It does a great job. And if u see how tlyouncut lil pieces to put around the hook shanks? After it vulcanized u slice those with your scalpel and they r now pop in hook keepers.

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