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  1. #21
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    Default Re: Yet another router table :)

    Quote Originally Posted by v0dka View Post
    I saw that too, i didn't know about it. Just need to know where to buy it here in Belgium
    I believe you just make it yourself. I'm not certain the type of glue to use. Epoxy of some sort?



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    Default Re: Yet another router table :)

    Hi Jack & others - I use epoxy or contact cement. Contact cement has advantages, cheaper and strong. Up to you. And yes you laminate the ply yourself. You can rough the sheet down to size then laminate then finish cut and drill. Use a hard spec aluminium. Not soft stuff. Soft tempers will crush under bolt loads. About 2mm thick is a good starting thickness... Also can laminate extra bits on where local stiffness needed. Laminated metal is common in aircraft industry look up "GLARE" Peter

    https://en.wikipedia.org/wiki/GLARE



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    Default Re: Yet another router table :)

    Hi V0dka - As an aside and since your happy to work in plywood and since your CAD skills are very good I suggest you consider a UHPC machine. Making mdf moulds is straightforward and then you can design and build parts that are more suitable for the job. Your machine has 100's of bolts, brackets spacers, All of these can be consolidated into 2 or 3 simple parts. There are high performance grouts available that are as good as aluminium. Where your heading is a complex, inefficient structure. It can be much simpler, plus concrete & mdf is cheap.. The two vids use epoxy granite but my current costing on UHPC concrete comes out half the price of using epoxy...Peter





    Last edited by peteeng; 03-03-2021 at 03:06 PM.


  4. #24
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    Quote Originally Posted by peteeng View Post
    Hi Jack & others - I use epoxy or contact cement. Contact cement has advantages, cheaper and strong. Up to you. And yes you laminate the ply yourself. You can rough the sheet down to size then laminate then finish cut and drill. Use a hard spec aluminium. Not soft stuff. Soft tempers will crush under bolt loads. About 2mm thick is a good starting thickness... Also can laminate extra bits on where local stiffness needed. Laminated metal is common in aircraft industry look up "GLARE" Peter

    https://en.wikipedia.org/wiki/GLARE
    As I said, the first version will be made out of plywood, and then, machining myself aluminium parts. I will probably use your approach (ply + al) for this first version



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    Default Re: Yet another router table :)

    in parallel of the machine design itself, I'm also diving into the control box design.

    I'm planning to use shielded cable either inside the control box. To wire the stepper driver to the control board, I would like to use FTP cable Cat 6 : 4 twisted pairs ( EN, DIR, PULSE and ALARM). Would the cable gauge be enough ? I think so because these have hust to drive opto coupled inputs. What do you think ?



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Yet another router table :)

Yet another router table :)

Yet another router table :)