This DIY leg curl extension machine attaches to your power rack and is great for accessory work on leg day. Standing leg curls, seated leg extensions, and hanging hamstring curls.

A written version of this tutorial is available here: https://garagegymexperiment.com/2021/...

Materials:
8ft 2x6 https://homedepot.sjv.io/Eaq3VK
Steel square tube https://amzn.to/3oYrBoy
¾ inch threaded rod https://homedepot.sjv.io/x95ayd
3 inch fixed caster https://amzn.to/2YJfYqS
2 inch dowel https://homedepot.sjv.io/2r56Ma
1 inch thick upholstery foam Amazon link (https://amzn.to/3wRIDFp), Home Depot link (https://homedepot.sjv.io/a1K06M)
1 yard of black vinyl fabric Amazon link (https://amzn.to/3if7waa)
3 inch wood screws https://homedepot.sjv.io/ORK09z
2.5 inch wood screws Amazon link (https://amzn.to/2WC711y), Home Depot link (https://homedepot.sjv.io/mg2V2O)
Black spray paint (https://amzn.to/34EKOzZ), Home Depot link (https://homedepot.sjv.io/2rKAJQ)
1 Mending plate Amazon link (https://amzn.to/2UGm4pY), Home Depot link (https://homedepot.sjv.io/MX56GK)
Rubber stopper https://amzn.to/3oUzknl
Black double pointed tacks https://amzn.to/3DRCWen
8” foam pads https://amzn.to/3AGiM4F)
Foam gym floor tile (optional) https://amzn.to/3vR0GLS)
UHMW plastic (optional) https://amzn.to/3lAuutp
1 ⅜ torque washer
1 ⅜ carriage bolt 12 inches long
1 ⅜ washer
1 ⅜ lock nut
2 ¾ lock washer
4 ¾ washers
6 ¾ nuts
4 1/4” bolts, 2.5 inch long with lock nuts and washers
2 ⅞ bolts, washers and nuts

Tools:
Dewalt sliding mitre saw Amazon link (https://amzn.to/3pdqFe3), Home Depot link (https://homedepot.sjv.io/3P7GRB)
Dewalt cordless drill Amazon link (https://amzn.to/3g2VM7L), Home Depot link (https://homedepot.sjv.io/doRm3K)
Bosch cordless drill set Amazon link (https://amzn.to/2TGLLpz)
Drill press Amazon link (https://amzn.to/3wh8beK), Home Depot link (https://homedepot.sjv.io/doRm3K) alternatively, the holes can also be drilled using a cordless drill
Angle grinder Amazon link (https://amzn.to/3Cu1fPB), Home Depot link (https://homedepot.sjv.io/JrLYLq)
Belt sander Amazon link (https://amzn.to/3ArRmA9), Home Depot link (https://homedepot.sjv.io/0JxBxR)
Dewalt random orbit sander Amazon link (https://amzn.to/3vUK2Ku), Home Depot link (https://homedepot.sjv.io/gbo2L9)
Staple gun Amazon link (https://amzn.to/3yYqSWP), Home Depot Link (https://homedepot.sjv.io/e4R6Jj)
1 inch forstner bit Amazon link (https://amzn.to/3uJm44s), Home Depot link (https://homedepot.sjv.io/LPDQoZ)
12 inch long 3/8 drill bit Amazon link (https://amzn.to/3pNU4vA), Home Depot link (https://homedepot.sjv.io/qng7kL)
Bench Vise https://amzn.to/3iWD6cb
¾ inch drill bit https://amzn.to/3iYTrgC
⅜ drill bit https://amzn.to/2YIOAIU
¼ drill bit https://amzn.to/2YKWXnh
Clamps https://amzn.to/3AzFgV5

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This video is not sponsored. Some of the links are affiliates which means if you purchase through the link, I’ll receive a small commission.

#kaizendiygym #diygymequipment #diyhomegym
0:00 Intro
0:29 Safety
0:52 Metal work
2:50 Weight sleeve
4:17 Option 1
7:30 Option 2
9:40 Q and A