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Associated tools

Required

Bench Grinder

The bench grinder has abrasive wheels that can be used to grind ferrous (iron containing) metals.

Required

CBN Bench Grinder

The Cubic Boron Nitride wheels are used for grinding carbide and hardened steel, primarily for lathe turning tools.

Required

Polishing/Buffing Wheel

For polishing metal. 

Bench Grinder Badge

Log in to see your progress on this badge.

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  1. Prerequisites None required
  2. Review materials
  3. Pass quiz
  4. Checkout
Review materials
Badge Video
badge Video Timestamps
Overview of available bench grinders
Wire wheel safety tips
Traditional bench grinder features
Proper use and safety on grinding wheels
Identifying wheel grits and maintenance
Using vice grips for small parts
CBN wheels and their uses
Sharpening carbide on CBN wheels
Adjusting tool rests and wheel operation
Polishing wheel and compounds
Safety and cleanup for polishing
Pass Quiz

4 questions · You can retake if you don't pass.

Badge Checkout Requirement
In person checkout required
Facilitator Checkout

Pick a checkout time below. All bookings flow through the appointment system — please do not arrange checkouts via Slack.

Day Morning (before 12 PM) Afternoon (12 - 5 PM) Evening (after 5 PM)
Sunday
October 25, 2026		  
Facilitator badge checkout
Sign in to schedule 3:00pm
With Lucas Harrison
  
Monday
October 26, 2026		    
Facilitator badge checkout
Sign in to schedule 7:30pm
With Mara Heneks
Wednesday
October 28, 2026		    
Facilitator badge checkout
Sign in to schedule 6:00pm
With Andrew Neely
Thursday
October 29, 2026
Facilitator badge checkout
Sign in to schedule 10:00am
With John Hatch
    
Sunday
November 1, 2026		  
Facilitator badge checkout
Sign in to schedule 3:00pm
With Lucas Harrison
  
Monday
November 2, 2026		    
Facilitator badge checkout
Sign in to schedule 7:30pm
With Mara Heneks
Wednesday
November 4, 2026		    
Facilitator badge checkout
Sign in to schedule 6:00pm
With Andrew Neely
Thursday
November 5, 2026
Facilitator badge checkout
Sign in to schedule 10:00am
With John Hatch
    
DEPRICATED OLD Checklist
https://docs.google.com/document/d/1DBPADxsQG0Blm4fVxPWyVUEzJiBNkUgTpmJlE3yTCwY…
Complete these items to earn the badge.
  • Video watched, quiz taken, hair/clothing properly restrained, any questions?
  • Identify and describe the two wheels, when another wheel might be wanted
  • Can aluminum be ground on the wheel? (no)
  • Grind a piece of metal
  • Good grip on workpiece
  • Workpiece level on the tool rest, or angled down if held above the tool rest
  • Not pushing hard
  • Cleaning up tool
  • Vacuumed up after use
Print Badge Checklist

Polishing/Buffing Wheel

Associated Slack Channel
#metal
Description

For polishing metal. 

Requirements for Use
Required Badge

Bench Grinder

Badge Checkout Requirement
In person checkout required
Log in to see status
Log in to check eligibility

Bench Grinder

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Need the checklist, documentation or quiz? Open the full badge page.

Talk to a facilitator

Facilitators run badge checkouts and are also glad to help with project-specific advice, a refresher, or planning a build.

4 facilitators, 8 upcoming times in the next two weeks · Next: Sun Oct 25, 3:00pm

See facilitator schedule

Facilitator schedule · Polishing/Buffing Wheel

Facilitators run badge checkouts and are also glad to help with project-specific advice, a refresher, or planning a build.

Day Morning (before 12 PM) Afternoon (12 - 5 PM) Evening (after 5 PM)
Sunday
October 25, 2026		  
Facilitator badge checkout
Sign in to schedule 3:00pm
With Lucas Harrison
  
Monday
October 26, 2026		    
Facilitator badge checkout
Sign in to schedule 7:30pm
With Mara Heneks
Wednesday
October 28, 2026		    
Facilitator badge checkout
Sign in to schedule 6:00pm
With Andrew Neely
Thursday
October 29, 2026
Facilitator badge checkout
Sign in to schedule 10:00am
With John Hatch
    
Sunday
November 1, 2026		  
Facilitator badge checkout
Sign in to schedule 3:00pm
With Lucas Harrison
  
Monday
November 2, 2026		    
Facilitator badge checkout
Sign in to schedule 7:30pm
With Mara Heneks
Wednesday
November 4, 2026		    
Facilitator badge checkout
Sign in to schedule 6:00pm
With Andrew Neely
Thursday
November 5, 2026
Facilitator badge checkout
Sign in to schedule 10:00am
With John Hatch
    

Every facilitator, every tool: the full facilitator schedule.

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