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JizzMasterZero
Stranger


Registered: 11/30/16
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Working With Plastic 1
#26634191 - 04/28/20 11:25 AM (3 years, 8 months ago) |
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I’ve got an old Phototron (the original grow your own weed set up) that I want to modify. It’s at least 30 years old and mostly plastic. I’m going to update the lighting and put in an ebb and flow hydroponic system. To do this I’ll need to make at least one hole 1 1/2 inches in the bottom, and I’ll need to cut out part of the top too for a ventilation fan. I’ll be cutting into plastic. It’s not hard plastic that shatters, but it’s not soft like Tupperware either, and it is 30 years old. I just don’t want the plastic to split or crack when I’m cutting the holes. Does anybody have experience or recommendations on working with plastics?
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D.little91
Windowlicker


Registered: 01/13/15
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Loc: Western PA
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You can get 1 1/2 inch hole saw bits at a hardware store if you have a drill. I would recommend getting one with the pilot drill bit in the middle and just go at a medium slow speed straight through. As long as you’re not going too fast and the bit is going through straight it shouldnt crack just be careful of it binding.
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JizzMasterZero
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Re: Working With Plastic [Re: D.little91] 1
#26634919 - 04/28/20 05:16 PM (3 years, 8 months ago) |
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Yeah I was thinking about using either a hole saw or melting through the plastic with a piece of red hot pipe.
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LogicaL Chaos
Ascension Energy & Alien UFOs




Registered: 05/12/07
Posts: 69,323
Loc: The Inexpressible...
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Id recommend gently heating up the plastic before drilling. Go slow, maybe even use a light oil or water while drilling. Treat it like drilling glass
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PrimeMulch
Extreme Sheep Herder



Registered: 03/21/19
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Pick up a soldering iron from hardware/ automotive/ electronics store. Melt the hole. For larger holes, make a bunch of little holes and poke out the center piece. Do this in a well ventilated area, even if drilling. Plastic smoke/ particles are not good for you.
Edited by PrimeMulch (05/04/20 04:15 PM)
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JizzMasterZero
Stranger


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Re: Working With Plastic [Re: PrimeMulch] 1
#26649965 - 05/05/20 07:23 AM (3 years, 8 months ago) |
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Thanks for the tips everybody! I’ll get started as soon as I can find the right ventilation fan and DIY carbon filter.
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koraks
Registered: 06/02/03
Posts: 26,670
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Re: Working With Plastic [Re: PrimeMulch] 2
#26654249 - 05/07/20 01:55 AM (3 years, 8 months ago) |
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Quote:
PrimeMulch said: Pick up a soldering iron from hardware/ automotive/ electronics store. Melt the hole.
That'll work fine and it will prevent any cracks etc. However, it'll also more or less ruin the soldering iron. Plastic will stick to it and every time you heat up the iron, it'll stink to high heaven, carbonized plastic parts will flake off, etc. It's a nuisance.
An alternative is to use a gas stove or a butane torch to heat up a large nail (gripped with pliers) and use that to melt the holes. Discard the nail when you're done or save it for later for the same kind of job.
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bodhisatta 
Smurf real estate agent


Registered: 04/30/13
Posts: 61,889
Loc: Milky way
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Re: Working With Plastic [Re: koraks] 1
#26657840 - 05/08/20 04:19 PM (3 years, 8 months ago) |
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Plastic is easy to drill people are just impatient. Cracks come from going too fast
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