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Business of Machining

John Grimsmo of Grimsmo Knives and John Saunders of NYC CNC discuss their success, struggles, goals and more as machinists, business owners and entrepreneurs.
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Now displaying: Page 1
May 1, 2020

CNC Lathes, Mills, Manufacturing & Small Business

TOPICS

  • CNC Lathe & Mill Trials and Errors
  • Subspindle Stabilization Solutions
  • 5-Axis Window Machining, Tabs, and Hot Glue
  • A Different Workholding Solution You Might Not Have Tried
  • Will the KERN make the Linda Wheel obsolete?
  • Dovetail Workholding Instills Confidence
  • Technician Time
  • Shedding The Bootstrap Mindset 


RAISING A BURR? DISH.
Saunders aims to avoid a post-machining deburr process for the square, tapered mod vise washers. He discusses the results of chamfering with the Harvey double-sided, double-angle cutter, using the subspindle and a 3D printed mandrel to stabilize the washer during part off, and a new idea that involves a 1" square collet.

Solutions Should Not Cause More Problems
When trying to improve machining strategies and workflow processes, make sure you're considering reliability, scalability, and poka-yoke. If the solution is clunky and prone to error, don't settle!

5-Axis Window Machining, Tabs, and Hot Glue
While touring Stewart-Haas Racing (video coming soon), the decal crew asked the V.P. of Operations, Tony Frazier, if their machine shop could fashion an aluminum decal squeegee and Saunders offered to help! He gears up to record voice over for the entire process. Although it's not a technique that lends itself to automation, Grimsmo still wants to have that trick in his back pocket!

A Workholding Solution You Might Have Never Tried
Saunders shares an awesome workholding technique when it comes to machining parts that are difficult to hold AND it can also provide reliable machining datum for Op 2.

Technician Time
Covid-19 lockdown might have some silver lining after all. Without distractions, Grimsmo finds himself getting very comfortable with the KERN in terms of probing, measuring, pallet changing, mounting vises to pallets, and making incredible progress on the rask knife tombstone fixture. Perhaps when the lockdown is lifted, there will be a new rask in the offering!

LINDA WHEEL OR SWARF!?
If you're a veteran of this podcast, you already know about the "Linda Wheel." The Linda Wheel Arrives in all the way back in Episode 12. The question is, will the KERN render the Linda Wheel obsolete?

Dovetail Workholding FTW
Remember that scary block of 4140? Grimsmo's now sold on dovetail workholding!

Bootstrapper Mindset Holding You Back?
When you're a bootstrapper by nature, the problem is you're using limits to plan while your business is growing! While this mindset does serve a great purpose, the trick is to know when to use it and when to abandon it.

 

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