luni, 26 iunie 2017

7x10 lathe mods to CNC - part 1

   At the begining of this year, I got my hands on a small 7x10 lathe, in relative good condition, with moderate wear. Having allready an Optimum BF20L milling machine, wich is similar to the Grizzly 0704, I was in desperate need of a lathe.
   And here it is :). Judging by brand, is italian made, by aspect is 100% made in China and rebranded, like other 7x lathes.
   First things first I've removed the gear box to make room for the X axis motor.

   The gear box, although made out of plastic gears is quite noisy, imprecise, and gives the sensation of a cheap product, wich in fact it is. The price for a new one is around 700 - 800 US dollars, maybe a bit less if you get a coupen from Aliexpress :P.
    I've found a pice of textolite, that remained from another project, and cutted a nice flange to hold the X axis motor. You can notice the new flange holded in place by an M8 screw. Another support bracket is needed , made out of aluminum, that will keep the flange tight on the main screw bushing.
     And this is the main support for the motor.
     Spacers were made out of calibrated 10mm bar, scavenged from old printers. The motor was also recovered from an old copy machine.
    The end result seems promising. Still waiting for the shaft coupler, wich has 10/12mm holes.

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