Where to buy spindle

[Boyan Silyavski]

Hi Guys,

I don't seem to be getting a lot of love here but hopefully you can confirm or suggest something better regarding my findings.

What i don't like about your design, now that i have seen the more detailed drawings is that the spindle center is overhanging so much that is in front of the gantry leg front bearing block. Do something about that. Instead of triangles you can offset the gantry a bit back, so the forces equalize.
This is a major design flaw in my opinion.
Read more here http://www.cncroutersource.com/do-it...NC-router.html The picture below is from that link and illustrates how basic forces work there.




I would have used servos. I would have definitely used 220v AC drives even for steppers, so seems your choice is right there.

I would definitely flip the Z design, so that the moving plate is the longer part , with the rails there, and that the Bearing blocks are on the fixed plate

[EddyCurrent]

silyavski, I just beat you to it but that's the damn diagram I've trying to find again for ages, so thanks for finding it.

[JAZZCNC]

I would definitely flip the Z design, so that the moving plate is the longer part , with the rails there, and that the Bearing blocks are on the fixed plate

As you know Boyan I would normally agree with you on this one but in this case then it really is best this way due to tool length and the fact the spindle never goes much below the bottom of the gantry as Vass is cutting large blocks of ice with long tool so needs the inverse travel.

To be honest I didn't pay much attention to the design and more focused on the component selection but I must agree with Eddy and Boyan that the gantry would beneifit from moving the CG back. It looks to me like your using Solid works so this will show the CG hows does it look.?