Business of Machining

Business of Machining

John Grimsmo of Grimsmo Knives and John Saunders of Saunders Machine Works discuss their success, struggles, goals and more as machinists, business owners and entrepreneurs.

Episodes

November 14, 2025 49 mins

Topics:

  • Blocking wax
  • Measuring porosity in metal
  • Nesting software
  • White light interferometer
  • Audio issues fixed?
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Topics:

  • Audio issues on podcast?
  • Waterjet mod vises
  • Kern float sensors
  • The power of vision systems and AI


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October 31, 2025 52 mins

Topics:

  • Should we die with zero?
  • Measuring anodizing hardness
  • Engineering change notifications
  • Home assistant
  • Foam update
  • Video on probing
  • Lights Out Automation - integrator
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Topics:

  • Foam update
  • Rachel Whiteread art exhibit
  • 15 minute trackers
  • Mailcall from Abom79
  • Buying a paving company
  • Water filtration






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Topics:

  • Stress relieving titanium
  • Robot flip fixtures
  • Foam update
  • Raspberry Pi Home Assistant and webcams
  • Probing too much
  • Telescopes and lenses
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October 10, 2025 51 mins

Topics:

  • Tariffs
  • Visit to Tuck's Garage
  • Johnny Five is almost alive
  • Speedio S700 purchased!
  • Fieldly.ai (necklace pendant)
  • DIY foam inserts
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October 3, 2025 46 mins

Topics:

  • Tough days
  • CMTS tradeshow
  • Selling machines and building the shop
  • Gorilla Stand micro adjustment
  • Kuka arm rubber scraper: https://www.youtube.com/watch?v=ZS4Bpr2BgnE
  • Influencer marketing
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September 26, 2025 50 mins

TOPICS:

  • Watchmaking
  • CA Glue
  • White light interferomety
  • DIFFRACTION LIMITED VIDEO MUST WATCH:
  • https://youtu.be/MgQbPdiuUTw?si=cvqbxAIJuswziIl9
  • Cheat sheet for different AI's. 
  • Notebook LM
  • Tool wear issues on small parts


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September 19, 2025 52 mins

TOPICS:

  • New computer specs
  • UR10e robot
  • Building a white light interferometer
  • Watchmaking
  • Selling the Okuma horizontal
  • Finishing Johnny Five
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September 12, 2025 56 mins

TOPICS:

  • Tradeshows, Kern Precision days
  • Adam from Laney Machine Tech
  • Cyrus from Cylos Garage
  • White Light Interferometry
  • SMW expanding pins
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September 5, 2025 40 mins

TOPICS:

  • Drilling and tool life
  • Through spindle coolant
  • Speedio S500 details
  • Argon results in heat treat
  • Gorilla stand


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August 29, 2025 53 mins

TOPICS:

  • Argon purging heat treat bags
  • Revisiting tool life in steel
  • Tapping, form tapping, threadmilling
  • Machining graphite
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August 22, 2025 48 mins

TOPICS:

  • I hate rework
  • Aligning the Erowa chuck on the Kern
  • Expanding clamps
  • One piece flow vs batchwork
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TOPICS:

  • Saunders smashed his finger
  • Met NileRED
  • What's the ideal retirement home shop?
  • Corporate Saga pens
  • Inventory
  • Vapor blasting
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August 1, 2025 49 mins
  • I vs We in business
  • Dave Precise:  "The best decision is the one that will let you make the next decision faster"
  • AI vs search engines
  • 5 axis work
  • Vapor honing
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July 11, 2025 50 mins

TOPICS:

  • Atlanta retrieval mission
  • Kern coolant float fixed-ish
  • Johnny Five motor gears
  • M2 buttons
  • Dave Precise episode on Within Tolerance


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TOPICS:

  • Air compressor and coolant problems
  • Johnny Five electrical schematic
  • M2 steel testing
  • Hard threading
  • Prototyping 5 axis parts


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June 27, 2025 47 mins

TOPICS:

  • UPS knives to Blade Show still stuck in Atlanta
  • 465 Custom stainless steel
  • Firechrome material
  • Reinvest or take out money?
  • Was there a point where you wanted to throw in the towel?


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TOPICS:

  • Crazy adventures at Blade Show 2025
  • Saunders crashed the Okuma
  • Moduleworks visited SMW
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June 6, 2025 49 mins

TOPICS:

  • Kern runs great now!  
  • Normal days vs rework days
  • High, Low, Buffalo
  • Blade Show 2025
  • 465 custom material
  • Helicoil stories


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