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  #1  
Old Fri 06 June 2008, 20:52
pafnc
Just call me: paul
 
charlotte NC
United States of America
maximum tabel size ?

whats the longest table i can build can it be 20 feet long and how much more will this cost other than the steel
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  #2  
Old Fri 06 June 2008, 22:20
dmoore
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Quote:
Originally Posted by pafnc View Post
whats the longest table i can build can it be 20 feet long and how much more will this cost other than the steel
Let me ask what you have planned for your machine:
  • Materials cut
  • Size of materials
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  #3  
Old Fri 06 June 2008, 23:28
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Here is a 20' long MechMate <-----link

The length of table is virtually unlimited since all the intelligent motors and electrics sit on the gantry - the table is very dumb.

Once you go over about 12ft long, start thinking of more legs bolted to a concrete floor.....or, increasing material cross-sections of the longitudnal frames.

The costs escalate for the steel, but also for the cables, cable carrier (e-chains are not essential), gear racks.

Handling a dust collection hose of that length could become a big problem. If you have a lot of ceiling height above, you could think of suspending a hose (plus the cables)......
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  #4  
Old Sat 07 June 2008, 06:10
pafnc
Just call me: paul
 
charlotte NC
United States of America
David one of the things i would like to do is route stair stringers
which i can get 9 .25 inches x 20 feet
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  #5  
Old Sat 07 June 2008, 11:29
dmoore
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Quote:
Originally Posted by pafnc View Post
David one of the things i would like to do is route stair stringers which i can get 9 .25 inches x 20 feet
Let the internet be your friend.... search around and you'll find some stuff like this:

http://www.talkshopbot.com/forum/mes...tml?1201906860

http://www.talkshopbot.com/forum/mes...tml?1082996801

You could easily build a 10ft machine and cut the 20+ft stringers.
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