Semi-Auto Power Shrinker/Stretcher?!

Here's a must-have video that will guide you through building a pneumatic stand for your manual shrinker stretcher set. The pneumatic cylinder takes the effort out of using a shrinker stretcher and the pressure regulator ensures that every bite of the shrinker and stretcher is consistent for even gradual bends. The overall size of this unit takes up an even smaller footprint than a manual hand-operated unit and a MUCH smaller footprint than a foot-operated machine.

Be sure to stay to the end of the video for a blueprint for the build so you can build your own.

0:00 Intro
1:11 Why Pneumatic?
3:10 My Amazon Shopping Spree
3:47 Two Types of Pneumatic Pedal Valves
5:52 The Design Process
7:59 Cutting Out Parts
14:30 Assembly Time
17:14 First Test
17:53 What Does a Shrinker/Stretcher Do?
19:20 Blueprints!

As an Amazon Associate, I earn from qualifying purchases.

Parker Air Cylinder 2” Diameter 6” Stroke

Air Pressure Regulator

5 Way Foot Pedal Valve

Air Line and Fittings

1/2” 20 Clevis

3/8” Quick Release Pin (Bottom)

1/2” Quick Release Pin (Top)

1/2” Bronze Bushings

NOT currently available on Amazon
1" DOM tubing with 1/8" wall. For handles.

1/2-20 Stainless Jam Nut

The Tools Featured in This Video:

As an Amazon Associate, I earn from qualifying purchases.

Empire Abrasives
Get 10% Off! Use Promo Code GarageFab

Harbor Freight Grinder
Corded 4-1/2 in. 5 Amp Angle Grinder

Welder ESAB Fabricator

Plasma Cutter Hypertherm

Vise Wilton

Hole Cutters - Hougen

Sheet Metal Shears - Kett

The Video Production Equipment I Use:

Cameras:

Sony A7iii Mirrorless Camera

Lumix G7 Mirrorless Camera

Audio Equipment:

Rode Wireless Go Lav

Giant Squid Lav

Sound Recorder Zoom H4n Pro

Tripod Manfrotto

Tripod Head

Neewer Camera Slider

Teleprompter

Lighting:

Flashpoint Ring Light

Phottix Nuada R3

[dennistwitchell]

Just built mine and had to use a Tailon sc50-100 cylinder as the one you used seems to no longer be available. Mine uses a 4 inch stroke, which seems.more than enough. Requires a cooresponding pivot that screws onto the base and the yoke is bigger than the one in the video.

[jayinmi]

I've seen a couple of videos of people making their own foot pedal operated stands, but never a pneumatic one. This is awesome.

[stevehaulsforyou]

Dude amazing content. Can't wait till I'm doing this stuff also

[jakeevans]

Really really enjoy all your videos, can't wait for more to come out.
Keep up the good work 😊

[robertshelton]

Okay call me stupid I still can't find the list of parts from Amazon sorry to put you through so much trouble

[UnconventionalMetal]

I just watched this again. I forgot about the offset hole drill trick👍, and excellent job on the truck in your intro. Good to see a TPI intake still being used today.

[CraigHollabaugh]

I know nothing about pneumatic cylinder force until today. I finally, after years, looked it up. Wow, I need to start using these. Thanks, I'll be making something similar soon for my shrinker/stretcher.

[smokeyray]

OK Mr. Wizzard, pretty clever! I just bought a set of these and will be using your idea. You know I don't believe a lot of folks understand how much work and engineering it takes to build something like this. If you had to buy, it would be pricey. Thanks for the info. Keep up the good work!

[FueRent]

Eyeballing fabrication, and making blueprint AFTER the fact... Wesome

[shannonortega]

I would love to see the layout of your shop. I also build cars and motorcycles from my home. Shop space just cost to much right now. I'm always looking for new space saving ideas. BTW no idea why this is under my wife's name. Lol. Tim, Liquid Cycle Designs

[MarkDAmico-ip]

Do you have a link to the bits/hole saws you're using? Great video btw. As soon as I find a suitable replacement to the air cylinder which is NLA, I think I'm going to dive into this project for my shrinker/stretchers.

[siTTinLo]

Dude, they run the ads regardless so you might as well get paid for your content. I felt the same way as you until I realized this. Either way, I like your channel.

[ralphchristopherson]

Really Really appreciate your ideas and sharing them with us! I’ll be in my garage now avoiding the honey due list 😅

[mikealdag]

Even perfecter !! Awesome lol great video ! Thank you

[charlesstatkus]

I show my appreciation by Subscribing to your channel. All I can say is WOW! Just getting into metal fab. Powder coating would be the extreme in perfection. Got my Shrinker/Stretcher with stand today (Amazon Sunday FedEx). Ordering the suggested parts for air assist! Thank you!

[jimmyh]

Just simply awesome! Thank you for sharing your ideas. You are keeping it real. Keep it up.

[DG_Fabrication]

You got me Hook line and shrinker haha I ordered everything but they didn’t have the cylinder. Going to see if all hose to see if I can order it

[barrettbecker]

Excellent, joined and subscribed and ordered the parts, but can’t find the blueprint?

[wallyarent]

My screen shot did not work well
Do you have a website with it on it(print of device)
Thank you great channel

[andrewclark]

mine is a singular unit with swappable dies, should I just chop the design in half?