1200mmX900mmX170mm 4axis cnc

[Nickhofen]

Is there a reason not to go with that design on the bench?I mean the lower section for the 4 th axis? The bench will have a movable section at the one end that will cover the 4th axis and when is needed I will remove that part so I can machine big parts that are going to be heleded at the A axis.

[Nickhofen]

Bump.....!!!!!

[Nickhofen]

A guy near by me sells one of those as a kit, only the frame, are there any good ?
If I drop some Nema 23 ,3 or 4Nm.
http://www.cnc1.eu/en/KH1000GSKIT.htm
What a headache.

[johngoodrich]

hi. I think your design will be much stronger than the one you have linked to.. There should be no problem with the removable section for your 4th axis as long as it lines up with the rest of the bed

[cropwell]

Looking at that link, my first reaction is that the gantry sides are way too flimsy. They need some triangular bracing at least.

[Nickhofen]

Ok guys, thanks for the reply, I wasn't sure anyone is watching this thread.
I will move forward with my build and abandon the idea to buy the chasis.

[Nickhofen]

Advice needed.

I repost here since at my other thread I didn't get any respond.
I am thinking for something like that for my X axis, I prefer to build it bolt on ,with minimum welding, since it is one man job and better to handle, plus I want to avoid metal stress,that I am going to get with welding.
X axis is made from 90x90x900x4mm steel structural sections
At front and back of the steel tubes I will place two steel plates 5mm to stiffness the structure ,also the two plates ,left and right, are going to be 5 -7 mm.