- Nov 30, 2006
A holesaw will certainly work for that. I use holesaws for things like this all the time. The only consideration is that I figure a stock holesaw cuts about 1/8" larger than its nominal size. Depends on how well things are tightened down and the shape of the teeth. Some people grind down the teeth to get closer to nominal.What did you use to make the hole -- a holesaw?
From that X-ray picture it looks like the two optics are aimed identically. Or do you have some means of adjusting them? Thanks.
Ouch znomit ! This suggestion really makes me nervous so I have to say something...I added a high/low mode by putting a switch on one of the capacitor pairs..
Ouch znomit !
Ouch znomit ! This suggestion really makes me nervous so I have to say something.
By disconnecting one of the cap pairs, you are un-tuning the circuit an the remaining two caps get hit by rather high AC voltages across them. And they are just two, not 4 that can spread the heat. And you have epoxied them so if they decided to vent, they couldn't.
I recommend you don't disconnect one of the pairs but you bypass all 4 caps: Go back to the original 4-cap arrangement and add your switch b/w the dynamo and the point where the diodes connect the two capacitors. When the switch is closed, you will not have a power peak anywhere and the caps are not at risk. Your legs will also put less power into the dynamo.
Now I doubt that reducing the LED power will be a big relieve on your oncoming traffic. You could try to obtain proper optics for road use (sharp cutoff above a certain vertical angle), flip a diffusor over the light - or you could just point the light downwards in traffic.
On the matter of oncoming traffic in ones beam:
Strangely, in my area, this is much less of an issue than it was some years ago when cars would horn and cyclists would spit or shout. What happened is that meanwhile, more and more cyclists switched to the StVZO-approved Busch & Mueller dynamo LED lights but instead of pointing them down on the road, they point the hotspot right up into other people's eyes. That hotspot is hotter than with an off-road beam. Riders did this with halogen for better visibility, now they do it with LED. Motorists and cyclists seem to put up with it, police can't really fine a cyclist when his StVZO-approved headlamp is slightly unadjusted - the problem is corrected in a second. Bottom line, people got accustomed to being annoyed by bright bike headlights and it seems to be mostly tolerated.