7. Computer controlled machining¶
Weekly Summary¶
- Design something big on Fushion360
- Cutting with ShopBot
Assignments¶
- group assignment
- do your lab’s safety training
- test runout, alignment, fixturing, speeds, feeds, materials, and toolpaths for your machine
- individual assignment
- make (design+mill+assemble) something big (~meter-scale)
- extra credit: don’t use fasteners or glue
- extra credit: include curved surfaces
Group Assignment Link¶
Kamakura Group Assignment Week07
Individual assignment¶
Cutest hero shot of this week!!!!
Design data on Fushion360¶
Design the sketch¶
Setting Parameter following my sketch
I started to sketch the small and large table boards.
And sketched side parts.
lastly leg support.
MAKE SURE to add the dog bones!! It can make 90° corners.
I added 6.35mm diameter circle whole parts of corner inside.
Finish the design data. And try Group assignment to know about kerf.
Change the “thick” to 15.3mm from Group Assignment.
I added a long support for back legs, because it’ll make more stainable and strong.
Export the sketch “Save As DFX”
Move to VCarve¶
Import the file and set as follow;
Job Type : Single Sided
Job Size : 1800 × 900 × 150mm
Z Zero Position : Machine Bed
XY Datum Position : left bottom corner
Setting the “2D Profile Toolpath” as follow;
Start Depth : 0mm
Cut Depth : 15.3mm (Little bit deeper than material thickness)
Add tabs to toolpath : Length 8mm Thickness 3mm (Because Group work was a little bit too big)
from Tool select :
Spindle Speed : 16000r.p.m
Feed rate : 2.5 inches / sec
Check the “Show advanced toolpath options” > Press “Edit Passes”
Changing “Number Of Passes” to 4 that makes more smooth and safety.
Press “Calculate” > “Save Toolpath”
Go to ShopBot¶
Setting the material size > Try air cutting > Cutting (as Group Assignment)
Finish cutting
It took 3min longer than prediction time.
Polishing and Assembling
Done!!
Links¶
- table v4[.f3d]
- table_trace_newest[.dxf]
- stand_table[.crv]
- Table_1-Drill 1[.sbp]
- Table_2-Profile 1[.sbp]
What I learned¶
Kerf is really important especially for big object.
And always safety first!!