Scraping a Hobby Mill Like a Pro: The Column

This is the final episode in the precision hand scraping series for the 5 axis CNC hobby mill conversion project - this time, we near perfectly square up the column, straighten out the Z guide ways, and get the spindle perfectly square to the table.

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Previous scraping video:    • Scraping a Hobby Mill Like a Pro: The Saddle  

Follow Mr. Detective Scrapist as he investigates the mystery of the not-square spindle of the hobby mill 5 axis CNC conversion. Finding the flaws and correcting them one by one by use of 0.0001” precision measurement and hand scraping, he brings this crook spindle down, and then scrapes it, and then puts it back up again, and measures it again, and brings it back down again and repeats that process again and again.

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Learn how to Scrape:
As always, a big thank you to Marcus for all his help and generosity in giving me a space to film. He doesn’t want me to say this here, but he offers 1-on-1 scraping classes in the Gold Coast of Australia. Spend a day learning how to scrape basically anything you can carry to the class. Find him on Instagram @christensenmachineworks.

Sections:
0:51 Start with flat flat ways
3:50 Column dovetails
6:06 Z carriage flat ways
8:44 FlexiSpot Ad Integration
11:06 Z carriage fixed dovetail
11:57 Z carriage gib and dovetail
14:05 Spindle head flatness
16:58 Z carriage - spindle head interface
17:30 Column squareness
22:04 Spindle squareness