How to make Luthiers Spool Clamps (and a tip to save you money)

I have a guitar repair coming up that may need some spool clamps and I don't have any. In this video, I'm making a few sets of luthiers spool clamps. These are pretty easy to make and are a great tool to add to your collection. Plus, they're homemade and inexpensive so you can make as many as you need.
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[@scottsnet]

This is awesome, i'm making some this weekend. Thanks for the video

[@homemadetools]

Good job!

[@robertsemans5457]

Great how to video, very concise and clear. Bravo!

[@homebuiltshop]

Thanks!

[@giovannipetitti1588]

good job,

[@fartwrangler]

You could cut the cork disks with a wad punch.

[@UltraD52]

good idea. Maybe glue on the cork first then sand only once. Just a thought.

[@homebuiltshop]

That would have saved me a step. Lol!

[@DrMackSplackem]

6:48 Whoaa there!

[@homebuiltshop]

Haha, did you see it trying to slip out of the chuck?

[@DrMackSplackem]

@@homebuiltshop Yeah, I have mild WWPTSD from when a router bit got away from me while routing a truss rod channel. It's no joke how deep they can dig just from momentum. I still can't figure that one out, something must've contaminated the collet, making it feel securely tightened.

[@gsuderman]

I wonder if it would have been easier to buy a dowel and cut spools off that. Just a thought.

[@homebuiltshop]

That's an option I thought of. Then you have to drill a hole in them. At least this way the hole is already centered. Either way is just fine though. 👍

[@4denis408]

Great stuff! One thing I still need to know, though... Can you provide details on the carriage bolts / wing nuts that you used? It's an integral piece of the project. Where did you get them? what are the specs? Approximate cost to purchase? Thanks!!

[@homebuiltshop]

You can use whatever size bolt best fits the hole you drilled. I used 1/4" (1/4' x 20) diameter carriage bolts to fit the center hole of the clamp. Use whatever size you want and what works for you. You can use about any length that works for you. At my local hardware store, they sell these things by the pound so I think for all the bolts and nuts it was well under $10.

[@hellomate639]

An intuitively sized rod will work - just grab pieces you need. You don't need to overbuild these - they work by distributing load evenly, so each clamp doesn't need to be crazy strong or anything like that.

[@hellomate639]

Also... you can use cork and skip the plastic. You an also buy large dowel rods and cut them yourself (this is what I am planning to do). Don't be afraid to experiment and design, I'd say. Designing should be part of any learning process - it forces you to think about the "whys" of something, which allows you to more easily learn and understand why people are doing things a certain way, which allows you to modify. kzbin.info/www/bejne/eV6pdomwfp2im5o&ab_channel=TheEfficientEngineer Looking at this for a quick overview to give an explanation of physics that I learned from auditing a continuum mechanics class... it's not like you need to know the math, but if you know what the constants mean, it helps you think about what's going on. It's actually something I believe that should be taught in entry level physics in high school - it's just so useful for any DIY designing, understanding these types of forces.

[@butchshootingidiot8721]

How do you use them in Guitar building?

[@Sasquatch10]

I believe they're used a lot in acoustic guitar builds. When gluing the body together you use these along the outer edge to keep everything in place as it dries. If you search spool clamps on google images you'll get a clearer image.

[@CellAmen]

Or cut up a bakers rolling pin and some cork place mats

[@homebuiltshop]

That would work well too!

[@binnsbrian]

Show us how to use a spool clamp.