Spot Welding Machine DIY

##Spot Welding Machine DIY:

AC Transformer ZEBRA TAR-220ATT RTRN-A684WRZZ;
2AWG (35 mm2) cable 2.5m long;
140mm PWM cooling fan;
NY-D04 spot welding controller + AC 9V Transformer;
SUNKKO 73B welding pen;
AC-DC 12V 1A PSU;
DC 12V -50~+110°C Digital Thermometer;
DC 12V PWM speed fan controller;
AC70-500V Voltmeter;
Rocker Switch Fused IEC320;
5.5x2.5mm Panel Mount Connector;
160mm Door Handles;
18x15x5mm DIY rubber feet;
M3x5x5mm knurled injection brass nut;
M3x8x1mm red insulating spacer;
M3x7x10mm nylon spacer;
Socket inner hex screws and nuts;

###added 09/20/2022:

Silicone tube 2m long with an ID 8mm and OD 10mm (If a rigid wired was used to wind the transformer, then for greater convenience during welding, I recommend replacing part of the insulation with a silicone tube).