Final_v2_new.nc
The CNC router in the corner has been a big step for the workshop. It cuts carcass parts, drawer boxes and shaped components accurately and quickly. But the machine PC has a folder full of files with names like 'sideboard_final_v2_new'. The designer works on a laptop and brings files over on a USB stick. When a client orders a second sideboard like the one from last year, nobody is sure which file cut the first one, or whether that file includes the change the client asked for halfway through.
One morning, the operator cuts a full sheet of oak-veneered ply from a program that was superseded the week before.
Files drift away from designs
CNC work creates a chain: design, CAM or nesting, machine program, cut parts. Each step produces a file, and each file can be changed separately.
- Programs are stored on the machine PC with informal names.
- Files move between computers on USB sticks.
- The link between the design version and the program is not recorded.
- Tooling and material assumptions are not stored with the program.
- Old versions are not removed, so the operator chooses between several.
What mismatched files cost
Cutting from the wrong program wastes sheet material and machine time, and sheets of veneered board or solid timber panels are not cheap. Repeat orders take longer than they should because the file has to be found or rebuilt. When the designer is off, nobody else can confidently run a job. And if the machine PC fails, the programs on it may go with it.
File control for CNC work
- Programs are saved to one shared store, not the machine PC or a USB stick, linked to the job and to the design version they came from.
- Each program record notes the material and thickness, sheet size, tooling and any setup notes the operator needs.
- When a design changes, programs from the old version are marked superseded and the operator no longer sees them in the job's list.
- The machine PC shows the operator only the approved programs for the job at hand, in the right order.
- Completed cuts are recorded against the job, including any recut and why.
- For repeats, the designer searches by client, piece or design and finds the design and its programs together.
| Question | Today | With file control |
|---|---|---|
| Which program is current? | Guess from the name | Approved version only |
| What design did it come from? | Unknown | Linked design version |
| What material and tools? | Ask the designer | Stored with the program |
| Where is last year's file? | Search three computers | Searchable by job and client |
| What if the PC dies? | Files lost | Shared store backed up |
We work with your existing CAD and CAM tools. The file control sits around them rather than replacing them.
A CNC you can hand to someone else
Operators cut from the right program because it is the only one they are offered. Repeats start from the linked design and programs. The designer can be off without the machine stopping. And a record of cuts and recuts builds up, which helps you see where material is wasted.
It also makes the machine less dependent on one person. A second maker can learn to run jobs from a list of approved programs with setup notes, without needing the designer standing next to them. And when you look at buying a second machine or changing CAM software, you have an organised library of programs to move across instead of a folder of guesses.
Is your CNC folder a mess?
- Programs live on the machine PC with informal names.
- Files travel on USB sticks.
- You have cut parts from an old program.
- Repeat orders mean rebuilding programs.
- Only one person can prepare and run CNC jobs.