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On 25 Jul 2004 05:55:53 -0700, (yihang bmc-unsw)
wrote:
i was thinking of placing them on SUV tyres which should provide
enough clearance for the circular saw. would the weight be sufficient
of will i have to clamp it somehow.

i guess ill get some saw horses for the smaller section. but it seems
to me tyres will be more stable and its not as far off the ground, so
the cutoffs are supported as they come off.
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If you have a level concrete floor to work on, here's what works for
me. I use 6 or 7 furring strips about 4 feet long and lay them down
on the floor, plywood goes on top. The plywood is supported every foot
or so which is more than adequate. The cutoffs are fully supported
and everything is rock solid as you make the cut. I use an 8 foot
piece of MDF for a fence, clamped on each end. Set the depth of cut
for just slightly more than the plywood thickness.