450x300 Aluminium extrusion build from scrap/used parts

[driftspin]

Well free is the magic word :-)

Just make sure ther is enough meat to tap threads in for the linear rail bolts.

Also you need at least 4cm of width flatsurface to pour epoxy on the steel.
Make sure you have that.

Grtz Bert



Verstuurd vanaf mijn SM-A320FL met Tapatalk

Btw,

Why are the the z carriages up that high?
And close to gether?

Move those to the top and lower horizontal plates.

So top Z and Y and bottom Z and Y carriage are really close to gether, assuming X is the bed.

Grtz Bert.



Verstuurd vanaf mijn SM-A320FL met Tapatalk

[Nealieboyee]

Btw,

Why are the the z carriages up that high?
And close to gether?

Move those to the top and lower horizontal plates.

So top Z and Y and bottom Z and Y carriage are really close to gether, assuming X is the bed.

Thanks for your comments.

I did that because the further I move them apart, the less z height I have, because I have only 300mm rails for the Z axis.

Here is the machine at the moment. The z axis is at the lowest point of its travel. I've modelled the ballscrews and rails etc exactly as they are. They arrived a few days ago. Still waiting for the second ballscrew for the x axis.

My only problem was trying to keep the z axis as close to the Y as possible, so that there is less overhang or twist forward on the gantry. So I had to move the ballscrew to the back of the gantry. Not ideal, but with everything being 16mm and 20mm alu plate, I figured it wouldn't pose too much of a problem. Thoughts?

I have now sourced 80x80x5mm steel box section, and I got it through a friend at work for £76 for a 7.5m length. Not too bad!

I've also ordered a 2.2kw water cooled spindle, 425oz motors and drivers. I'll be buying the transformers and caps soon for the power supply. Any idea what control board I should use?

Note I haven't modelled the second ballscrew for the x axis. Its basically a copy of the right hand side one.

Please let me know your thoughts?











Cheers
Neal