after reading a lot of threads i reached this as a startup design ..the machine will Click image for larger version.  Name: Screenshot 2016-01-26 10.28.09.png  Views: 517  Size: 356.0 KB  ID: 17472Click image for larger version.  Name: Screenshot 2016-01-26 10.28.29.png  Views: 508  Size: 249.5 KB  ID: 17474Click image for larger version.  Name: Screenshot 2016-01-26 10.28.57.png  Views: 459  Size: 200.8 KB  ID: 17475Click image for larger version.  Name: Screenshot 2016-01-26 10.29.11.png  Views: 447  Size: 209.7 KB  ID: 17476Click image for larger version.  Name: Screenshot 2016-01-26 10.29.37.png  Views: 436  Size: 275.2 KB  ID: 17477Click image for larger version.  Name: Screenshot 2016-01-26 10.29.46.png  Views: 421  Size: 427.9 KB  ID: 17478Click image for larger version.  Name: Screenshot 2016-01-26 10.30.06.png  Views: 438  Size: 242.6 KB  ID: 17479Click image for larger version.  Name: Screenshot 2016-01-26 10.30.27.png  Views: 412  Size: 316.4 KB  ID: 17480Click image for larger version.  Name: Screenshot 2016-01-26 10.31.02.png  Views: 374  Size: 287.8 KB  ID: 17481
be used for engraving marble sheets (really heavy) ,for the y i will use 6mm steel sheets bent to form a cross section of 30cm *40cm,i will be using R&P sustem with gear reduction 1:5 for the steppers
waiting for your input ...thnx