This would be perfect for what you want to do critterhunter.
flat board metal or whatever attach a vertical rod to it..... take 2 large wheel collers and tack weld them together at a 90deg. offset slide them down the vert rod insert 2 horizontal rods into those. Take 2 more collers drill an tiny whole in it to feed a cutting wire through. That can be for angled cuts..... take another coller make it the same way and the other 2 fix it to the tip of the top rod and pass through a whole for a band saw type .... drill wholes further and further away from the center and you can put a wood screw in it for a lathe type ... mahe sure you make another coller with a point on the top to hold in place too ...