Motorized Dirt Soil Screening Machine

RedDirt · Jul 7, 2008

SkunkWerX said:
and then have some sort of screw clamp (like a C-clamp) that would clamp it down tight. This is probably just a dream in the pursuit of a truly "quick change" and "no tools" method to change a screen.

Maybe a cam action clamp or one of the over-the-center lever type clamp would work.

SkunkWerX · Jul 7, 2008

Redirt,
Actually leaving the shocks tubes in would keep it from springing "up" initially, as unloaded shocks are bottomed UP (opposite of bottomed Out). What you are seeing in there is a free floating piece of 1.5" PVC pipe inserted to keep the coils from being too wobbly in a lateral direction.
The shock tube was cut out for the reason you stated. It was like a shockectomoy.

Akpilot, yes the wheels are helpful. But they are way too small. I may try a set of cheapo HarborFreight wheel barrow style wheels later.

Larry,
Great idea! Mine has several holes in it, but I ended up using the "closest" one, so, it defeated further adjustment. I like the slot idea, with a weight that could be moved up and down the slot, to find the sweep spot.

*I need approx. a 5 or 6 inch round disk, 1/4" or 3/8" thickness, anyone???
Maybe with a slot cut in it?

I think a disk with a slot in it would be very nice for adjustments and fine tuning.

GuglioLS · Jul 7, 2008

SkunkWerX said:
*I need approx. a 5 or 6 inch round disk, 1/4" or 3/8" thickness, anyone???
Maybe with a slot cut in it?

I think a disk with a slot in it would be very nice for adjustments and fine tuning.

What is the thickness and length of the blunt force trauma "flywheel" that you have now? I am thinking at least a 3/8" thick disk.
What size slot do you need? i.e. what is the diameter of the stud used to bold on the off balance flywheel?

Larry

SkunkWerX · Jul 7, 2008

3/8th" is what it is now, 2" wide, and agree with your thoughts on the disc being similar thickness.

I like "Flywheel -o- Death" as it reminds me of a Medieval spinning torture device.

"I'll tell you anything!! Just get that thing away from my face!!"

PM sent.

chickenman · Jul 7, 2008

McMaster-Carr

page 1350

is what i used for flex mounts much easier than springs

its the shake speed not the distance that makes a difference

SkunkWerX · Jul 7, 2008

chickenman said:
McMaster-Carr

page 1350

is what i used for flex mounts much easier than springs

its the shake speed not the distance that makes a difference

Thanks Chickenman.
Mine doesn't "move" a lot, in fact, as you look at it, you don't really see it, but place your hand on the screen and you feel it.

GuglioLS · Jul 7, 2008

SkunkWerX

Got your PM - OK here is my version of the flywheel-o-death...

Two 1/4" thick disks with a fancy plasma cutout, bolt the two disks together on the shaft, then rotate one in relation to the other as needed to get the amount of imbalance required. This design requires zero machining. All you would have to do is take the file to a plasma cutter and have them cut out. Do you have a metal shop nearby with a CNC plasma cutter? If not, I could take it to my plasma cutter buddy. This part is only 6" dia and shouldn't cost more than 20 - 30 bucks maybe even less. Will the shaft accommodate a 1/2" thick disk?

Let me know what do you think.

Larry

chickenman · Jul 7, 2008

GuglioLS said:
SkunkWerX

Got your PM - OK here is my version of the flywheel-o-death...

Two 1/4" thick disks with a fancy plasma cutout, bolt the two disks together on the shaft, then rotate one in relation to the other as needed to get the amount of imbalance required. This design requires zero machining. All you would have to do is take the file to a plasma cutter and have them cut out. Do you have a metal shop nearby with a CNC plasma cutter? If not, I could take it to my plasma cutter buddy. This part is only 6" dia and shouldn't cost more than 20 - 30 bucks maybe even less. Will the shaft accommodate a 1/2" thick disk?

Let me know what do you think.

Larry

or you could use a surpluss large sproket with a hole drilled near the edge and weight bolted on

SkunkWerX · Jul 8, 2008

Larry that desgin is ingenius!!!

I will have to check my clearances to make sure there is room for both 1/4" thicknesses, plus my stop collars to keep it from rotating freely.

But, that is certainly a very clever way for infinite adjustment of the weight!

I like it, I like it!