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Hello,
Maybe think alone the lines of an insert to make your life easier if you want it baffled.
Get one of the really thin flexible chopping boards mats, they will roll up without creasing and cost about $5 from BigW etc.
Paint it black and add your baffles while its out and laying flat. Then just rollup and insert into the tube, if you use your ID x Pi you should get a good fit...
I'd just give the mat a little flex after painting to check its not going to flake badly on rolling. Otherwise you might want to add an elastic compound to the paint.
Steve
Ps. If the spacer around the lens goes out to around 100mm+ you can use a opti-ply for your tubing. The opti-ply is suitable for marine use, the flexi-ply I haven't checked for glue types.
Last edited by mura_gadi; 26-11-2021 at 10:26 AM.
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