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Old 03-22-2010, 08:14 PM   #1 (permalink)
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space saver model....

What about a space saver cnc plasma table that had the bed at a high angle like a panel saw? Add a stout ridge on the bottom edge of the table to hold the material inside the travel of the machine.Then make it a 5 x 5 table that can index cut longer 5" wide material or do 4x8 half sheets really easy.

Just a thought. If any company would be willing to listen you guys would....
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Old 03-22-2010, 08:30 PM   #2 (permalink)
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For some reason I'm thinking that the plasma process wouldn't work as well with the work vertical instead of horizontal. Seems to me gravity helps clear the dross from the cut path. Also when you finished cutting a part wouldn't it fall against the bottom of the table? Cut enough parts in sequence and i see it jamming the gantry.
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Old 03-23-2010, 02:00 AM   #3 (permalink)
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If all you wanted was to rip a larger sheet down like a panel saw then yeah, if you always used a new square sheet then yeah, but if you were trying to use leftovers that weren't square I think that would be a problem.
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Old 03-23-2010, 09:36 AM   #4 (permalink)
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We have had customers make vertical tables before. That is the thing about selling gantry kits. People come up with a million ways to support their material. One time I saw one upside down. It looked like a volcano erupting everytime the cutter fired. I would not recommend that. You have to think about the fact that the motors free wheel when they don't have power to them. If you mount something vertically, then you have to counterweight the part that will fall when you kill the power to the motor. Also, it will lose some speed because it has to overcome its own weight.
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Old 03-23-2010, 03:50 PM   #5 (permalink)
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I would think figuring out some sort of way to make the machine mount to the wall and fold up for storage would be simpler and create less headaches...
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Old 03-23-2010, 04:13 PM   #6 (permalink)
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I would think figuring out some sort of way to make the machine mount to the wall and fold up for storage would be simpler and create less headaches...
Maybe with a 2x2 you could get away with it, but anything larger, even a 4x4 would be a pretty risky move. And then to ensure that the rails are square, parallel and everything is calibrated properly would be a real mfer everytime you wanted to use it. IMO, these really need to be thought of as shop machinery, not a tool you put up on the shelf when you don't need it. Although the 2x2 has done a hell of a job of bridging the gap even in the way people think of cnc equipment.
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Old 03-24-2010, 01:44 AM   #7 (permalink)
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Also, it will lose some speed because it has to overcome its own weight.
Oof. I didn't even think of that. Having the weight slow the gantry on the up swing, and speed it up on the down swing would make calibration a nightmare.
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Old 03-24-2010, 08:02 AM   #8 (permalink)
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Oof. I didn't even think of that. Having the weight slow the gantry on the up swing, and speed it up on the down swing would make calibration a nightmare.
It's more of the fact that when you are traveling downward and have to immediately change your direction to go back upward, this is a lot of weight to stop and instantly (or close to it) reverse. With the proper gear reduction and settings it can be done. For Plasma cutting, I wouldn't recommend it!
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Old 03-24-2010, 07:55 PM   #9 (permalink)
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If you're looking for space savings, I'd look at something that swung out from the wall with a couple of drop down legs so that it operated horizontal rather than trying to make it work vertically. Then when you're done with it, it could "collapse" against the wall again.
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Old 03-24-2010, 09:27 PM   #10 (permalink)
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Check this http://cnczone.com/forums/showthread...light=portable


The PDF has details on what the guy was designing.

Cliffs Notes:
Name:  folding cnc.jpg
Views: 276
Size:  24.3 KB

Not really an option with the TM but still an awesome design.
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