6. Large format CNC (computer controlled Machining)¶
This week I worked on CNC machines
CNC¶
CNC is the automated control of machining tools (such as drills, lathes, mills, grinders, routers and 3D printers) by means of a computer. A CNC machine processes a piece of material (metal, plastic, wood, ceramic, or composite) to meet specifications by following coded programmed instructions and without a manual operator directly controlling the machining operation.
Vcarve¶
We used Vcarve software for CNC machine Download the software Here
Group Assignment¶
Group assignment is on ayman yunes page
Individual Assignment¶
Idea¶
I used fusion 360 to design a shelve .
I will design a cat by using many shapes and sketch.
So I added a two circles for head and body with two triangle for ears .
I added two circles foe eyes
then added a triangle and sketched some lines to complete cat’s face
Here I made two rectangular for shelve with added some joints
I added rectangular on the body for fit the joints in it
Cutting¶
Here is what it would look like my design in the cnc machine and how the machine cutting it.
The material we will use is plywood, and by using Vcarve Noting the plywood dimensions is 1220mm x 2440mm x 12mm
Since this machine cannot cut 90 degree angle in the corners so a “Dog-Bone Fillet” is accessible in the Vcrave application. then clicking on the Dog-Bone.
These are the values needed to cut with the plywood material which is defined the cutting depth 13mm, the thickness of the blade 3mm and the speed of the moving blade head 30 inch/min, The feed rate 110, and the rotational speed of the blade 14000 rpm.
This is the preview of the toolpath
My design¶
You can find my design Here
Problems¶
It was my first time to make something quite big, my design was actually small so I asked for help to adjust the size by scale. I faced a problem using the hammer to put the joints together, but my colleague helped me with it.