18350 tube for fenix pd30

[michael3]

I apologize if this is in the wrong section. My question is can anyone make a 18350 sized tube for the pd30 or does anyone know of one that already fits? Please help me out I have been asking and searching without much response. Thanks for whoever does.

 

[gadget_lover]

It looks like the inside threads of the head on my pd30 are only 19MM. Assume the battrey tube bore will need a little extra room for the 18350's case, protection circuit, etc. Say 18.4mm. This means the tube will be very thin where the threads are.

So it is doable. Whether someone wants to is another matter.

Daniel

 

[daimleramg]

Custom parts will be just as expensive or more then buying a brand new Jetbeam Pro ST broad voltage that already takes 18650's so you could use 2x18350 instead.

 

[michael3]

This means the tube will be very thin where the threads are

I was wondering about that. I wonder how much of an issue that will be? well if any machinist looks at this maybe you could tell me how much you think it would cost to do, materials and labor?

 

[michael3]

Custom parts will be just as expensive or more then buying a brand new Jetbeam Pro ST broad voltage that already takes 18650's so you could use 2x18350 instead.

I was looking for the shorter size via the 18350 with a longer runtime than the rcr123. but maybe it would be easier to mod the jetbeam than the fenix. I just don't have the jet beam and I really like the beam and throw and hotspot that the pd30r2 puts out.

 

[michael3]

I really appreciate you alls input. Thanks. and if you have any more info or thoughts that will be welcome

 

[precisionworks]

I wonder how much of an issue that will be?

Not an issue ... if the light stays on a shelf :nana:

.6mm = .024", meaning a wall thickness of .3mm (.012"). A 3M Post-It-Note is about .1mm thick, so the wall of the light will be as thick as three Post-It-Notes. And equally as durable.

 

[michael3]

6mm = .024", meaning a wall thickness of .3mm (.012"). A 3M Post-It-Note is about .1mm thick, so the wall of the light will be as thick as three Post-It-Notes. And equally as durable.

of course that will only be where the threads are, the rest of the body tube could be thicker right? if the body tube where the threads are is actually 4mm thick, would that make it any better since it is aluminum, or whatever metal as opposed to paper, and the rest of the tube is thicker? or do you think it will still be very weak even though it is only on the threaded part?

 

[precisionworks]

if the body tube where the threads are is actually 4mm thick, would that make it any better

It would be a lot better ... but instead of 4.0mm, the threaded area thickness is only 0.3mm. It is literally paper thin.

Could it be made - surely. Best material for a thinwalled tube would be Ti 6-4. Even then, the final product would have marginal durability & be incredibly expensive ... about the cost of 5 Fenix PD30 lights.

Custom parts will be just as expensive or more then buying a brand new Jetbeam Pro ST

+1

For well under $100, that's the smart way to go.

 

[michael3]

great, Thanks. I appreciate your input. That finalizes it. I have been wondering for a while about this and have tried posting it several times. Thanks for responding to my post and helping me out.