On 5/20/23 13:39, Chris Albertson wrote:
I think there would be a huge variation. A cheap $100 consumer sewingmachine
would not be at strong as an industrial sewing machine that sells for 20 times
as much.
One problem with many homemade gentry machines is that people us too-thin
material for the base. If the gantry rails are screwed to a sheet of
plywood, the entire machine will be as rigid as a sheet of plywood.
I’ve been working on some kitchens lately and visiting granite yards. They
typically have cut-off leftovers for not a lot of money. A slab of stone would
be much better than a plywood sheet and not expensive if it only has to be
sewing machine sized.
On May 20, 2023, at 9:28 AM, Thomas J Powderly <tjt...@gmail.com> wrote:
I saw an overarm router recently
and wondered if a sewing machine frame was stiff.
Compared to a desktop gantry mill.
I imagined a makita router mounted on the over arm
minimal Z travel ( 150mm at most)
I can find castings for industrial machines pretty cheap in qty 1
What i see are C frames, single casting, with base plate as long as over arm.
While the basic idea is good, I would not consider it unless the frame
was originally designed for heavy duty leather or sail making machines,
which will have considerably stiffer base plates.
Any thoughts?
( I don't have a sewing machine to lean on ;-)
TomP
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Cheers, Gene Heskett.
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