Update
Ballscrew installed
https://www.cnczone.com/forums/attachment.php?attachmentid=417470&stc=1
Side plates and guide rails installed...
Type: Posts; User: daveysapps
Update
Ballscrew installed
https://www.cnczone.com/forums/attachment.php?attachmentid=417470&stc=1
Side plates and guide rails installed...
Awesome work on the machining and fabrication!!!
So I am getting ready to install the Y-axis Chinese ball screw under the table ( I am calling my Y-axis the long axis that drives the gantry). I am inspecting screw straightness/run-out prior to...
FYI, by no means do I consider myself to be a welder.
Project update.
Welded base
https://www.cnczone.com/forums/attachment.php?attachmentid=412160&stc=1
Laser cut sheet metal
...
To cut down on the number of machined components, the thought is to use a table structure that is known to have a relatively good straightness tolerance ie extruded Al, and skin it with a material...
Looking at the specs, I thought that 20mm rails would be adequate.
Thats x2 on not having a counterbalance for the z... good deal, one less component to design around.
thanks folks!
Update;
Reduced gantry side plate height by 2.25".
Designed z axis assembly with supported profile rails (6.5" of travel).
What are people's thoughts on a counterbalance for the z axis?
...
millhouse,
I understand the advantages of the designs that you are suggesting, but I am thinking that the tall gantry plate design will suffice for my needs. Perhaps there will be a second build...
Ok, I am thinking that I will start with a single centered ball screw drive for the gantry, but will make provisions to easily add a second ball screw (one on LH side and one on RH side) if the...
I am not too concerned about table deflection from the unsupported nature of the design. I did an FEA analysis on the table with a 300lb static load on the center of the table and there was only...
I was hoping that with a 35" wide gantry and a bearing block span of 11.88", that I would get minimal racking. Perhaps I should increase the span of the bearing blocks to reduce the likelihood of...
Understood, I had a typo. I meant to say faster. Thanks
1) Good eye on the gantry height, as there is an unnesssacary drop between the z axis and the bottom of gantry. I will address this.
2) I wouldn’t have guessed that the 960 steppers would have been...
Well I thought that I would try my hand at building a CNC router, and would like to post my current design status to see if anyone has feedback on my current machine design.
Specs:
X axis;
26"...