Quick update on the wallbreaker. First, I was having trouble with the line sticking to the eyebolts using monofilament. Several people suggested I try spiderwire, so I picked some 20lb spiderwire twine, and it worked great. Nice smooth motion, no need to apply oil (though there was probably some residual on the eyebolts). I ran it for 9 hours Friday without a hitch, this is the verion built for the how-to using the A/C vent motor.
Thanks to building 3 kits today, and feedback from Erebus over at HauntForum, the how-to has been updated with several fixes and improvements, including the use of pulleys for the torso movement. If you plan on using it I suggest you dowload the latest, which is always available on the top right of this blog.
Below is a quick video of the wallbreaker built with the how-to (minus the hands and foam skull), including the pulleys on the torso movement.