SCblur
Enlightened
- Joined
- Dec 30, 2005
- Messages
- 818
I finally got up the guts to try it, and I'm glad I did cause now I have a perfect L2. Has anybody else done this? I haven't heard of any other bored L2's out there. Here's what I used:
Makita cordless drill
long drill bit 3/8"
100 grit sandpaper (for most of the boring)
250 grit sandpaper (to smooth it out at the end)
duct tape
bench vise
I mounted the body in the bench vise, padding it w/ an old rag. I then wrapped a section of 100 grit sandpaper around the tip of the drill bit, and taped it to the bit at the bottom. The section of useable sandpaper was about 1-1/2". I then used the makita and sandpaper drill bit like a poor man's dremmel tool, and went to work. It took the better part of two hours' work, and I ruined one of my 17670's in the process. But I don't care, cause I finally have an L2 that works on a bigger cell. I'll be doing some runtime tests tonight and tomorrow. I'll post them when I'm done. I'm interested to do a runtime of the L2 up against my 17670 L4, and also compare the 17670 L2 to the 14670 runtime.
EDIT 1:
Okay, I did a side-by-side runtime test w/ an L4, also on a 17670. The L2 started a little brighter than the L4, about 120% I'm guessing. At about the 30 minute mark, they seemed neck and neck for output, and remained neck and neck as far as my eyes could tell, all the way to 65 minutes. At that point, the L2 abruptly dropped out of regulation into low mode (the drop took about 30 seconds to a minute overall).
At this point (85 minutes), I am noticing a percievable decline in the L4 output, and the L2 is running steady in low mode. I will keep the L2 running to see how long the low mode will hold out.
EDIT2:
90 minutes, and the L4 has dimmed to the point that the L2 is again brighter than it. I am noticing that the L4 puts out maximum brightness for approximately 10-15 minutes more than the L2, but the L2 is giving out useable light for a longer periond than the L4. When the L4 starts to die, it dies quick. The L2 however, maintains useful light for quite some time after it drops to low. That might be an important consideration if you'll be using a light in a situation where you might not have a charger/spares readily available. (camping for example)
Makita cordless drill
long drill bit 3/8"
100 grit sandpaper (for most of the boring)
250 grit sandpaper (to smooth it out at the end)
duct tape
bench vise
I mounted the body in the bench vise, padding it w/ an old rag. I then wrapped a section of 100 grit sandpaper around the tip of the drill bit, and taped it to the bit at the bottom. The section of useable sandpaper was about 1-1/2". I then used the makita and sandpaper drill bit like a poor man's dremmel tool, and went to work. It took the better part of two hours' work, and I ruined one of my 17670's in the process. But I don't care, cause I finally have an L2 that works on a bigger cell. I'll be doing some runtime tests tonight and tomorrow. I'll post them when I'm done. I'm interested to do a runtime of the L2 up against my 17670 L4, and also compare the 17670 L2 to the 14670 runtime.
EDIT 1:
Okay, I did a side-by-side runtime test w/ an L4, also on a 17670. The L2 started a little brighter than the L4, about 120% I'm guessing. At about the 30 minute mark, they seemed neck and neck for output, and remained neck and neck as far as my eyes could tell, all the way to 65 minutes. At that point, the L2 abruptly dropped out of regulation into low mode (the drop took about 30 seconds to a minute overall).
At this point (85 minutes), I am noticing a percievable decline in the L4 output, and the L2 is running steady in low mode. I will keep the L2 running to see how long the low mode will hold out.
EDIT2:
90 minutes, and the L4 has dimmed to the point that the L2 is again brighter than it. I am noticing that the L4 puts out maximum brightness for approximately 10-15 minutes more than the L2, but the L2 is giving out useable light for a longer periond than the L4. When the L4 starts to die, it dies quick. The L2 however, maintains useful light for quite some time after it drops to low. That might be an important consideration if you'll be using a light in a situation where you might not have a charger/spares readily available. (camping for example)
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