Following are photos of the cutting speed control for my copy of the ubiquitous
4"x6" bandsaw.  I thought about and discarded the idea of building a bracket to
compress the cylinder on the cutting stroke.  This would give the advantage of
moving a lot more fluid for the same distance, but would require a lot more work.

Instead, I decided to slightly reduce the thickness of the spring mount to accept
the cylinder yoke, then made a shoulder pin to mount through an existing hole 
(from the spring counterbalance mount) which I enlarged slightly and counterbored
to accept the pin.  The reservoir is a 4 oz. model airplane fuel tank.  The mount
is just scrap steel drilled, bent, and painted.

The pictures are as follows:

SawSpdCtl_01.jpg		bandsaw swivel arm and spring mount, cylinder
SawSpdCtl_02.jpg		reducing thickness with shaper
SawSpdCtl_03.jpg		shoulder pin and counterbored hole (eliminates draft)
SawSpdCtl_04.jpg		cylinder close to sawing position
SawSpdCtl_05.jpg		cylinder with saw in vertical position
SawSpdCtl_06.jpg		reservoir with bracket
SawSpdCtl_07.jpg		complete rig

Pete Keillor