Othermill

Othermill
Othermill

The Othermill is our desktop CNC mill, used to prototype PCBs and cut 2D or 3D shapes out of various materials.

Policies
MakerSpace Safety Orientation and Othermill Training are required to use this machine.
MakerSpace staff must change out cutting bits.
Users must vacuum out inside of machine after every use.

Software
Bantam Tools Desktop Milling Machine Software (Required to run machine and generate cut files for PCBs or 2D cuts)
Accepted Filetypes:
Eagle BRD (.brd)
Gerber RS-274X (.gtl and .grb)
G-Code (.nc and .tap)
SVG (.svg)
Fusion 360 (Recommended for generating advanced toolpaths from 3D models)

Nominal Cutting Area (with spoilboard)
5.5 × 4.5 × 1.35 in
140 × 114 × 34.3 mm

Allowed Materials
FR-1 PCB Blanks (Available for purchase in the MakerSpace, single & double sided)
Acylic
Machining Max
Linoleum
Aluminum
Delrin
Wood
ABS
Polycarbonate

Forbidden Materials
× 
Heavy Metals (including Lead)
× Solid Copper
× Steel
× Titianium
× Glass
× Carbon Nano Fiber
× Fiberglass
× FR-3 Boards
× FR-4 Boards

Available Cutting Tools
These tools are shared, and may occasionally break during use. Please let us know so we can keep these in stock, and check your toolpaths if needed. Anyone who breaks more than 2 tools will be charged $15 for each additional tool broken.
Flat End Mill (1/8", 1/16", 1/32" 1/64")
Ball End Mill (1/8", 1/16", 1/32")
30º V-bit (For engraving PCBs)
80º V-bit (For engraving metals)
If you plan to purchase your own tool, check with a staff member to check compatibility first.

Resources
Official Operation and Techniques
CAD & CAM for Othermill
Feeds & Speeds
PCB Milling Workflow
Tool Library for Fusion 360
Othermill Guide to Fusion 360
MakerSpace Fusion 360 CAM Guide

Material Settings (Feeds & Speeds)
View file here.

View full guide on Othermill

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