So I got this rope...

[charlie]

...and it doesn't have the double weave to it. It's a BlueWater Accelerator 10.5mm x 60m but it's all the same weave. How do I mark the mid point without hurting the rope?

Cat piss. That's the olde school way climbers marked the middle of the rope.

[Wes]

The coolest mid (and end) marking I have seen was some kinda glow-in-the-dark ink. Seemed like a nice thing for those time when you end up climbing/rapping in the dark.

Wes

[Jerry Bargo]

I've had good luck with stitching a bright, contrasting color of thread around the middle of the rope (just through the sheath). This is a far more time consuming process than you might expect. The long ride to the gorge or your brain-wash time in front of the boob tube might be converted to some value by this exercise in stitchery. I also like to mark the rope 30' from each end with another color to assist my belayor with giving me timely and accurate estimates of when I am about to run out of rope on long pitches (at other destinations, obviously).

[512OW]

I generally slice a 2" section of sheath from the middle, leaving only exposed core. Theres no mistaking the middle then.

[andy_lemon]

You could always take a sodering gun and just soder the middle, leaving a black ring around the sheath. That works for me. If it is too much of an eyesore just cover it up with duck tape.

[Bruisebrother]

If you have to have the middle of your rope marked for you, maybe you should stick to climbing in a gym somewhere!

[J-Rock]

Just tie the two ends together and lower the rope down or coil it and throw it. I've never been more than a few inches from the middle this way and you won't rap off the end of the rope.

[Bruisebrother]

Yah right J-Peeble, you forgot the important part! I've seen you follow your directions and then have to have someone bring the rope back up to you!

[Alan Evil]

The worry is passing the middle on the way up without knowing it. Hopefully it won't be that long until I get on some multi-pitch stuff out west so I would prefer that the belayer be able to shout out that it's time to set an anchor system. I know it's possible to belay from above with the rope nearly run out but then only one of you gets to lead each section.

I've never climbed in a gymn, bruiseboy, and I don't plan on it. I'd rather go hiking in a thunderstorm than hang out at a gymn.

[Bruisebrother]

Sorry, Al-Ev. Didn't know where you were coming from, not knowing you well! But watch out for J-Pebble he's a bit obsessed! Too bad you weren't at The Gunks with us last week.