Jerommel's Hand Job 2018 - 6th annual BLF / Old Lumen Scratch Made Light Contest

Giveaways and Contests
4

Well, you did say it would be compact… :open_mouth:

5

Looks good mate!

Why take the wrapper of? why not just use a 18650?

6

Great start :star: looking good :+1:

7

Interesting!

8

Well, i bought 2 of those 20700’s almost a year ago now, but i haven’t got anything to use them in…
And then i found that, with a little persuasion, it can fit inside a 22mm diameter copper pipe when you remove the wrapper.
Triple board and optic also fit snugly in this size tube.

9

Great start to your build :+1:

I have a couple of those charging circuits for my build - Interesting to see how you cut them down like that.

10

Cool :+1:

11

Looks interesting! Pretty compact indeed.

12

Nice :wink:

13

Very nice with a couple of cool new concepts! :+1: :+1:

14

Thanks for the encouraging comments!

I could have used the Convoy S9 e-switch driver with USB charging port, but i didn’t like the idea of parasitic drain, so i used a reverse clicky set up in stead.
This takes up more space though, and it will be a bit more of a challenge to sort out the switch button.

And that will be the next part of the build:
Holes for the USB port, charging LED light and switch button.
Also have to widen the copper tube a tad to get the assembly in without too much force.
Lining the lot up properly will be a bit of a challenge too…

15

Very cool, very nice, Jerommel. :+1:

16

Looking great, Jerommel! Very cool setup so far, I like how you’ve got everything stacked tight and epoxied in place (JB Weld?). Interesting how you’ve trimmed down the charging circuit. Are the eliminated bits just for over/under voltage protection?

17

The battery does not have its vent holes anymore btw, whatever the implication is of that.

18

Pipe Bomb! :smiling_imp:

19

Yeah, maybe i’ll send it to some globalists… :smiley: :partying_face:

But it’s true, it’s gonna have a harder time venting.
I decided it was not that important.

20

Nice work Jeroen. Looking forward seeing the end result.

21

:smiley: :+1:

22

Well, let’s hope not that it will end like that… ^

I will update this evening / night with pics.
Had a bit of a set back, but that’s what you get when you build hastily and without proper planning up front…

23

Me too ! :beer: