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Associated tools

MIG Welder

This is a Miller Millermatic 211 MIG Welder with Spoolmate 150 aluminum spool gun. *Make sure to watch the Spool Gun video at the bottom of this page if you want to use that…

MIG Welding Badge

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  1. Prerequisites None required
  2. Review materials
  3. Pass quiz
  4. Checkout
Review materials
Badge Video
Pass Quiz

6 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 Evening (5 PM - 8 PM)
Monday
May 25, 2026
Facilitator badge checkout
Schedule 7:30pm
With Mara Heneks
Complete these items to earn the badge.
  • MIG
  • Video watched, quiz taken, any questions?
  • Identify:
  • The controls on the welder
  • The gas and wire being used (CO2/Argon mix, steel wire)
  • What materials can be welded (steel)
  • Do coatings need to be ground off? (Yes, >2” from all welds)
  • Demonstrate proper setup of filler wire, conductors, take apart nozzle
  • Weld 2 pieces of square steel in a tee
  • Appropriate safety gear donned
  • Skin covered with non-synthetics
  • Gloves (non-synthetic), wrists covered
  • Mask (10-13 shade, delay), test by looking at ceiling lights
  • Cap for head
  • Closed shoes
  • Metal cleaned (brush then Simple Green)
  • Fume extractor set up and turned on
  • Turn on gas, set proper flow rate (25cfh)
  • Appropriately clamp work
  • Attach work clamp
  • Trim wire tip (as needed to remove balled tip)
  • Experiment with volts/speeds/travel speed
  • Once calibrated, show a good weld around joint
  • Shut down
  • Wire trimmed & Nozzle cleaned
  • Gas and Fan off
  • Lines coiled
  • Area cleaned
Print Badge Checklist

MIG Welder

Row
Row G
Shelf Number
Shelf 8
Inspection Exemplar Image
Library Item Replacement Value
$1350
Documents
Millermatic 140 manual.pdf

Wire spools available for sale in the Make Haven Store.

Requirement

MIG Welding

Embedded thumbnail for MIG Welding
Badge Slots Required
1 appointment slot
Badge Checkout Requirement
In person checkout required
Estimated Minutes for Checkout
30 Minutes
All Badge Issuers
Christopher Chalsma
Mara Heneks
Alex Murdoch
Nathan Rawling
John Hatch
Lucas Harrison
Anthony Holland
Austin Larkin
Library Item Requirements

Closed-Toe Shoes

Closed toed shoes are required.

The following badges must be earned before borrowing this tool.
Library Item Status
Available
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