Gentle Friends,
I've just returned from a group of errands that included a visit to TV to show off my latest projects, talk a little shop and have a laugh or two. Another Forum Member timed a visit so we could gang up on Tim. Too bad Travis was off, he was part of my reason for the trip. On the way I hit another local hardware store, got 3 more potential springs from a different maker (Hillman), all washouts. When I got home my package from McMaster Carr was here with the ideal part for the
Ti Cera with strap (or switch) issues project I think:
http://www.mcmaster.com/?orderview=new#catalog/119/1215/=md6jmx
This guy is .720 inches outside, just small enough to fit the .750 tube past the strap, it slips in and out nicely. It's made of much heavier wire (.071 not .041) giving us nearly four times the steel to conduct (lower resistance and therefore losses). It's also a 'just right' fit on the 14500 battery due to optimum wire size. The ends are ground square (much improved contact at top and bottom), again adding even more heat to the core from losses elsewhere. It's stiffer (thicker wire, same length) but the free length is only half an inch longer so it loads very easily now (no need to tape the dimes).
To convert over you remove the 18650, drop in the spring, drop the 14500 in the spring, put six (give or take) loose dimes on top, put the inverted Doob Tube cap in last as a spacer and to protect the spring on the end cap which you now screw on. Cera lights up just before the cap gets tight (and turns off by backing the cap off a turn from snug). My Cera has what I think are 'typical to good' strap connections and my switch is the latest production (I'm told). In doing A/B testing (quickly shifting batteries between hits) I honestly can't tell a real difference between the AW IMR 15400 and the 2250, switch and side strap with my Ti EO cart. At first I thought the 18650 was faster (although both reached the same level), then I realized it was easy and fast to dump all the pieces out and drop the single 18650 battery in and go. With the 14500 I had to deal with all the pieces, so the core was cooling down...... Once I realized I was goofing up the test it was nearly too late. But the last two hits (from cold standing starts against the clock) seem to be a push to me.
The 14500 won't last anywhere near as long, of course (maybe only 1/4 or 1/3 the capacity) but it'll give you way more serious hits than most mortals can deal with. Say 10 minutes? What started out as a field test/work around for the strip issue is getting to the point I'm about to recommend the springs to any Cera owner with 14500s, a Doob Tube (cap) and sixty cents. In the bargain (if you call it that) you get a 'latching' twist on/twist off switch. I'm not too comfortable with that, still, since I have a Cera that's had 3 accidents that way (two different borrowers) boiling all the oil out over time, but the fleas come with the dog. I'll have to be content with the hope folks will treat it with due respect and not leave it cooking away on it's own I guess. At least the 14500s will run down faster, I guess?
Bummer you have to buy six and all, and MC doesn't tell you shipping until after it's shipped. But first class mail for this box (several pounds of other stuff) was five bucks. I think this spring is an excellent accessory to Cera even if your switch and strap have never given you pause for concern. Cheap insurance and a useful option for running the Cera as well IMO.
So now you know as much as me..... Thanks for the attention.
…The new bowl actually tasted good to me! Blasphemy! Someone get this man some fresh flowers!
What's the old joke about the man hitting himself on the head? When asked why he said, "because it feels so good when I stop!".
Love it, thanks.
OF