Recent content by shawnreit

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    I need a mould to resize/reduce a plastic bottle's neck?

    Internal mandrel! that's a must ...and if that were NOT fixed, then the two half-pipe system can work. I mention the drill press lever arm 'cause that's something I've got. I'm trying to consider the viability of a home build for the apparatus. To have such a thing made by professional...
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    I need a mould to resize/reduce a plastic bottle's neck?

    Thanks, that seems like a reasonable handle too. How to heat, how to clamp? So far the pipe is do-able, how to easily rig a jig to make for a clean , easy (one levered?) operation?... - a lever armed spring mechanism - like a bottle capper. (you know?) Like a drill press, one side with half...
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    I need a mould to resize/reduce a plastic bottle's neck?

    Hi, I'm replying to my own thread: I decided not to wait for help and tried a few experiments in the workshop. I ground and sanded flatish the flanges and external thread of a bottle. Then, what finally worked , I tightened a stainless-steel hose clamp around the neck and rotated that over a...
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    I need a mould to resize/reduce a plastic bottle's neck?

    Hi, I'm trying to understand the viability of making or having made - a hot -mould that can resize the neck of a standard cooldrink bottle. I want to reduce the neck of a 500ml bottle so that it fits loosely into another bottle's neck. So(ie) - to heat and compress the neck( threaded apperture)...
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