Thread: Mounting motor under table?
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06-09-2011 #41
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17-09-2011 #42
I've been bouncing some of these shapes and ideas around and I'm left with the feeling that, while the idea really appeals to me, I'd end up with the combined table element somewhere in the region of 170+mm deep if I try to fit the motors in the way planned. For some reason that just doesn't feel... right. I have no idea if there is a mechanical reason for this to be wrong, it just seems odd.
This design lark is harder than it looks, especially when you have a tendancy - nay, burning desire! - to reinvent the wheel at every opportunity :confused:
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17-09-2011 #43
Don't sound over deep to me but it would really help if we had a nice pritty drawing to look at.:whistling:
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17-09-2011 #44
Oh I do love making pretty drawings... one on the way then, if not in the next hour then tomorrow!
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17-09-2011 #45
Right. Cobbled something together while the rest of the family were subjecting themselves to XFactor :whistling:
I've had a glass or three of wine so you'll need to excuse a few glaring errors (yes, one of the motors is physically inside a wall as I forgot to "carry the one" while doodling numbers on the back of a fag packet...). One side is missing for visibility, and because I realised another "carry the one" error made it physically impossible
For size reference, the big blocks along the bottom are 80x80, the others are 80x40. My initial idea for the top table was to use L brackets to connect to the blocks on the rails of the bottom table. No idea if they would be suitably strong enough but it seemed like a good idea at the time (cue cutaway of top table showing L bracket)
I've not put in the Z, just roughly indicated where the spindle would be. I also want to think about what I can do to make the gantry stronger, bracing etc, for most mass and rigidity within my capabilties - so no welded steel tubes or fancy epoxies :cry:
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17-09-2011 #46
I also realise it would be flippin' hard to clean as it, but I have plans for tackling that as well! That will be another thread later on in the year!
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18-09-2011 #47
Hi rogue,
Ah ah I see what you mean know.? . . . Just a quicky as it's early and I'm on way to motoX.
I would scrap the top moving portion as it's too bulky, overly complicates and add's no extra strength or bennifit over the Z axis running across the fixed gantry in the usual way.
Would be cheaper due to less materials and less work.
Yes triangulate and brace the hell out the gantry and base frame.
If you have a need or want an idea for capabilty to have a high Zaxis but with absolute max strength at the cutter, so very little tool flex then let me know and I'll post a suggestion.? . . . If not then won't waste my time. . Lol
Ok time to jump on a road bike to go race dirt bike.!! . . . . .Arg I hate road bikes but got to get there fast.!!
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18-09-2011 #48
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18-09-2011 #49This design lark is harder than it looks, especially when you have a tendancy - nay, burning desire! - to reinvent the wheel at every opportunity :confused:
it still beats watching the X-factor though
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18-09-2011 #50
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