Excellent Stewart! Your ingenuity knows no bounds. As a physicist I always think it is a bit like being an astronaut (in two axis) as the slightest force swings one out of the way of where you what to be or what you want to do! Thanks for suggesting I watch this.

Wow, very cool setup 4 arborist climb. Combining pcs from arborist, rope rescue & construction creates this cool rope climbing tool. Thx 4 sharing on the internet. Keep on climbing.

Very impressive. I hope someday you can sell the plans for this device so that many of us can have an affordable ascender.

Very nice

Good job !

Exactly what I was looking for! I want to build something similar for lifting up to 60 pounds of gear at a time up 150 to 200ft. It'd need to be wireless such as Bluetooth controller for the drill. Will not be used for lifting persons. I need it to haul gear up water towers.

Fab.

awesome !!

Thanks for the vids man, they're awesome. I was thinking of just getting the r550 brand new and just going from there, are there any reasons not to buy the new model? do you have to get the r500, thanks again

ignoring losses an 8 ah 20 volt battery having 160 watthours could lift 58 kilos a 1000 metres. now we don't live in a frictionless world, so assuming 75% going into heat via the motor and gearbox and elongation of the rope and friction in the pulley and the manufacturer lying about the battery and whatnot, ~250 metres would still be quite impressive. this would make big wall hauling a breeze. the person climbs, their luggage flies. (8*20*3600 ~= 58*9.81*1000, Potential energy in joules = mass in kg x gravitational acceleration x height in metres, conversion between watthours and joules is 3600 times)

where can i buy

did any of your modifications change the rate of ascent or is that how fast the R500 ascends with a high speed drill?