Heres a power hacksaw I cobbled together years ago because I tired of using my arm and couldnt afford an Enco.  There is no lift mech on the backstroke and isn't osha ok.  I've never put anything on you tube, this is an experiment so delete/move if it chews up too much bandwidth or whatever.  

https://m.youtube.com/watch?feature=youtu.be&v=UQ7YmcBbmaU

That's quite the machine. How long did it take to make that cut?

Frosty The Lucky.

That's pretty dang cool! I was going to go the same route but I just came across an old Keller that was in near perfect condition. What size motor are you using?

  Frosty, it's an old video but I would say 5 minutes.  I used old broken industrial bandsaw blades on it and they have aggressive teeth.  I had to use a plasma cutter on the blade mounting holes after destroying several drill bits.  

 

  Thanks mutant.  The motor currently on it is 1/4 hp but I think it had a old unknown washing machine motor on it to start with.  

 

  Im really glad the link thing worked.  I thought a you toob picture would show up with it though.  Kind of fun.