[Alexandra Shelton]

My foot operated spot welder is giving weak studs with 0.2mm pins on aluminum, and studs pulls off easy. Any solutions?

[Scott Whitaker]

weak studs comes from bad surface prep or settings. Clean aluminum with alcohol thorough, use 0.25mm pins for better grip, And adjust weld time to 0.3 seconds. check ground connection, and keep firm pin contact. this improves stud strength.

[Shannon Butler]

Increase weld time to 0.4 seconds, it helps stud strength.

[Zachary Washington]

clean aluminum with alcohol for better grip, check ground clamp connection, And clean surface with acetone.

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