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07-12-2016 #11
Thanks mike - 1 question,
Your gantry sides are 20mm - these are the largest plate connecting the Y and X axis, where did you use the 15mm plate for?
Any did you use plate for the Z / X axis.
I have also used high grade extrusion, the bare weight of the aluminium along for me was 76 kg. I think the Y axis was 9 kg/m, and the X axis around 5-6.
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07-12-2016 #12
Hi Nick
I used 15mm plate at either end of the long extrusions (x-axis) (see my build log photos for the bed construction). For the Z axis construction I used 20mm 5083 cast and machined toolplate. It has a very fine and accurate surface finish which is critical for the setup and accuracy of that axis.
Regards
Mike
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07-12-2016 #13
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07-12-2016 #14
I did the same as you, only I'd built it hence how I know!! I bought two of these style for mine and they're great.
Last edited by njhussey; 07-12-2016 at 02:22 PM.
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08-12-2016 #15
44 Pounds !!!!!!!!!!!!!!!!!!!!!!!!!!!! wtf, is that hand cnc'd or something !
I think I will make a horizontal plate, that protrudes over the top of the housing, and just rotate it 90 degrees, bolt from above.
I have spare 13mm plate around, so job done
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08-12-2016 #16
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13-12-2016 #17
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31-12-2016 #18
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31-12-2016 #19
Hi Nick
You have been busy! so have I, finally got my machine cutting. Anyway the 20mm plate on the gantry sides will give stiffness in the Y/Z plane. BTW I noticed on your Z-axis plate the bolts are raised. You should counter bore these so that the trucks for your Z axis will have some where to be located. Remember Jazz's comments about mounting the rails on the back of the plate which holds the spindle and the trucks and ballscrew get fitted to the plate as shown in your photo.
All the best and have a successfull 2017!
Regards
Mike
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01-01-2017 #20
Yeah, thanks for that, I realized this as I was staring at it yesterday, will have to counter bore to even get cart to slide past the bolt head I think.
I've decided to go the other route and mount the rail on the sides of the plate pictured, and just have the cart on the back of the spindle.
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