Computer-Controlled Machining

CNC Machine

This time, we weren’t just loading files and pressing "Start." We got into the software side, made proper settings, and actually understood what was happening.

A. Setting Up the File

We started by bringing our design into (software name—VCarve, Fusion 360, etc.) and checking a few things:

File format – DXF or SVG worked best.

Material size – Because if the software thinks our wood is 10mm thick and it's actually 12mm… well, that’s a problem.

Toolpaths – We set whether we wanted pocket cuts, profile cuts, or engraving.

B. Toolpath Settings (a.k.a. Making Sure It Cuts Right)

Once the design was in, we set up how the CNC should cut:

Bit selection – 'Flat-end' for clean cuts, 'ball-end' for curves, 'V-bit' for engraving.

Feed rate & spindle speed – Too fast? Bit breaks. Too slow? Material burns. We found a balance.

Depth per pass – Instead of forcing the bit to cut everything in one go (bad idea), we set it to cut in layers.

Tabs – So our cut parts didn’t suddenly pop out and get hit by the spindle.

C. Setting Up the CNC Machine

Once the file was good to go, we moved to the machine:

Zeroed X, Y, Z – Either manually or using the probe. No one wanted the bit slamming into the material.

Previewed the cut – To catch mistakes before ruining our stock.

Loaded the right bit – Because using the wrong one = chaos.

Hit Start & Hoped for the Best

With everything set, we ran the job and watched closely. No weird noises? Material staying put? Good.
Definitely felt more in control this time—less guessing, more knowing what’s actually happening!

D. CNC Safety Measures

Personal Safety First

Wear safety goggles – Tiny chips fly fast, and eyes don’t grow back.
No loose clothing or jewelry – The spinning bit doesn’t care if it’s your favorite hoodie.
No gloves – Hands have better control without them, and gloves can get caught in the machine.
Closed-toe shoes only – Because dropping sharp tools on your foot is not fun.
Tie back long hair – Unless you want the CNC pulling you in (which you don’t).

Machine Safety Checks

Bit properly tightened – A loose bit can fly out like a projectile.
Material is clamped securely – If it moves mid-cut, things go wrong fast.
Speed & feed rates checked – Too fast? Bit breaks. Too slow? Material burns.
Dust & chip control – Kept things clean so we could see and breathe properly.
Zeroing X, Y, Z correctly – So the CNC knew where to start and didn’t crash into our stock.

After the Cut

Turn off the spindle before touching anything.
Clean up chips and dust with a brush or vacuum.
Check the bit’s condition – If dull, replace it before the next cut.

These were few protocols we followed throughout our course.

Prior CNC Furniture: Designing, Cutting & Assembling from Scratch

A. Sketching in Fusion

B. Extruding

C. Manufacturing

D. Hero Shots of Furniture

Abstract CNC Furniture: A Stool with a Twist

A. Initial Idea and Concept

I’m designing a wooden stool that doesn’t need any nails, screws, or glue—just an interlocking mechanism that holds everything together. The structure is entirely self-supporting, with smooth, organic curves that aren’t just for looks but also help balance the weight naturally.

What makes it even more interesting is the hidden coffee table underneath. It fits perfectly within the stool’s shape, almost camouflaged, and can be pulled out whenever needed. This makes the design both compact and multifunctional, great for small spaces.

The whole idea is to treat furniture like a puzzle—fun to assemble, visually unique, and structurally clever. It’s an experiment in form, function, and balance, using only the precision of interlocking wood to keep everything in place.