CNC - Root2CNC
- Owner/Loaner: MakerStation
- Serial Number: N/A
- Make/Model: Root2 v1
- Arrival Date: November 2016
- Usability: {{{usagerestrictions}}}
- Contact: Bret Lanius
- Where: Classroom area
Contents
Info
We have a Root2CNC desktop CNC mill courtesy of work and contributions from Bret Lanius, Dan Odom, Tanju Bayramoglu, and others. The project is being led by Bret.
General Specs
- Single print nozzle/Single color
- Material: Wood types, Plastic types
- Build Dimensions: 152mm x 152mm x 158mm (6in x 6in x 6.2in)
- Spindle z-axis range:
- Multi-Software Compatible: Freedom to use any number of CAD/CAM software programs
- Operating Ranges
Permissions
- RESTRICTED - must consult with Bret Lanius prior to operation until the Root2 is fully commissioned
- Longer term, the Root2CNC will be access control limited to people that have completed basic training
Restrictions
Discouraged Materials:
- Plastics of unknown composition
- Aluminum - requires advanced operational knowledge
- Steel - not allowed
- Titanium - not allowed
- Brass
- Bronze
- Copper - limited to PCB etching, requires advanced operational knowledge
Basic Instructions
Successful Milling is all about Speeds and Feeds
Speeds refers to your spindle speed in rpm.
In a series of experiments performed early on in machining, it was determined that spindle speed is the biggest determiner of tool's life.
Running too fast generates excess heat (there are others ways to generate heat too), which softens the tool and ultimately allows the edge to dull.
Feeds refers to the feedrate, in linear mm per minute.
Feedrate is all about the tradeoff between maximizing the material removal rate. Material removal rate is how fast in cubic units the mill is making chips--the faster the better for most machinists, right up until it creates problems.
The most common problem is tool breakage or chipping when you feed too quickly.
Wood
Milling Soft Woods: Popular softwoods include pine, ...
Milling Hard Woods: Oak, ...
Plastic
Plexiglass Acrylic: Plexiglass is xxxx, readily available and can be found at local hardware stores and online
- Brittle
Lexan Polycarbonate Lexan is xxx, it can sometimes be found at local hardware stores
Foam
Circuit Boards
Circuit Board Milling
Advanced Operational Knowledge
There are some more advanced tasks that not everyone needs to know to print, but needs to know to troubleshoot:
Warnings
- Keep loose hair and sleeves away from all moving parts.
- Dust control
- Avoid inhaling dusts generated from milling operations
Safety
- Keep loose hair and sleeves away from all moving parts.
- Do not touch
- Dust
- Material Safety Data Sheets
- Root2CNC is not intended for:
- (A) Beginners
- (B) Cutting, milling, engraving metals
- (C)
