CAD + Digital Fabrication

Use these wiki pages to get started and understand...

CAD: (Computer Aided Drafting(Design)) @BSM we use SolidWorks or OnShape

CAM: (Computer Automated Manufacturing) @ BSM we use Mesh CAM or SolidWorks CAM

3D Printing @ BSM we have Prusa i3 Mk3s Creality CR-10V3 and Stacker S2 printers

Laser Cutting @ BSM we have a ULS VLS 6.60 laser cutter

CNC: (Computer Numerically Controlled) Technically 3D printers and laser cutters are CNC too, but for the purposes of this class we use CNC to refer to the CNC mill and CNC router in the shop.

CNC router Tips and Tricks:

Router Operation tips and tricks

Tips and Tricks

Tip 1- When fastening down the desired cutting piece, use an impact drill instead of a regular drill. This will prevent screws and screw heads snapping and stripping.

Tip 2. If the desired material is too thick, (Such as aluminum) Consider drilling pilot holes first.

Tip 3- Always make sure that the vacuum is running and pulling excess composite out of the router axis. (having too much crud laying around can cause malfunction and could possible break drill bits or the machine)

Tip 4- Changing drill bits- When changing a drill bit, first make sure it is rated for use on a router. (Meaning it can be secured and handle the load of the machine) Also, use correct black colored wrenches meant for use on the router chuck.

Step 1. Remove dust cover (thing with brussels) by pulling down on the piece.

(Warning: Make sure the drill bit is sharp and secured before router use!)

Step 2. When the drill bit is in the machine, watch closely when turned on to prevent the bit “Diving” into the material. This is dangerous because the drill bit could break and be sent flying across the room.

Tip 5.- Only certain programs work with the router. For example- Use Meshcam instead of Cad Programs. If you do not use these programs, the cut will not complete and material will be wasted.

Problem Solving- When the router turns off unexpectedly, or engraves incorrectly, stop the cutting.

Router raising and disconnecting- When this happens, first make sure the file is uploaded all the way, make sure connections are good from computer to router, and the base (cutting material is level).

Here is a list of possible causes for issues:

• Control card is loose or malfunctioning.

• Stepper motor failure.

• Drive failure or current subdivision and software settings are inconsistent.

• Z axis motor line fault.

• Spindle motor failure.

• Inverter interference or data setting is wrong.

• Electrostatic interference.

• Computer virus or system problems.

• Make Sure G code is correct, and try different program if trouble occurs.

Caring/cleaning For the Machine- Before or after you use the router, make sure to clean the motors and electrical components. If not properly cared for, the motor can overheat and serious harm to the machine may occur. You can clean it with a towel, air compressor, or the canned compressed air.