Introduction: Making a Kant Twist Clamp


Face it, tools are cool! Sometimes tools are so cool that you want them, regardless if they are unavailable to you. Such was the case with the Kant twist clamp. Living in Sweden these clamps are not available, and entirely unheard of, but the desire to have one was still there. Aside from being a useful little tool for many clamping operations, they're also quite an aesthetic tool to have around, and with a little bit of effort, and skill, not too hard to make yourself.

I've made the plans I got inspired by available at the following link, if you plan to use them you may want to adjust the measurements to fit your application: http://switchandlever.com/plans/kant_twist_clamp_plans.pdf

What you will need:

Materials

Sheet metal, for making the arms, preferably a non-flexible steel 1,5 mm thick
Steel rod, for pins, shaft, handle and hinges
Brass, for the gripping blocks/jaws, it's good practice to make them from softer material, so they do not mar what you're clamping
Small screw, for locking shaft in place
Loctite Threadlock, to hold screw and handle in place

Tools

Metal lathe

Milling machine, with suitable endmills and drills
Belt sander, can be replaced by more manual filing
Band saw, can be replaced by hacksaw
Taps and dies, for threading the shaft
Ball peen hammer, for peening the rivets
Files and sandpaper, for refining shape and giving a nice finish to parts
Anvil, or other suitable hard surface to use while riveting


It's not an especially hard project to do, but it does help if you feel at least somewhat comfortable moving around a machine shop, especially so you know enough not to hurt yourself due to ignorance. Anything you may end up doing to yourself as a result of trying to make a clamp like in the video is your sole responsibility, but do be careful and rather think things through once more than do something you're not comfortable with.

Hope you enjoy the video, there will be more to come so stay tuned!

Comments

AndrewG256 (author)2016-12-13

The store seems to be offline. Is it possible to still buy the plans?

Store is functional. Go to the link above, even though it results in an error page, hit the store link at top right and get them from there. Cheers!

GeorgA6 (author)2016-07-26

Paralelltving heter dom på svenska

http://www.verktygonline.se/verktyg-pa-natet/hallande-spannverktyg/skruvtving/paralelltving/

Shuvo Jayz (author)2016-03-30

The link's dead. Ain't no plan here! I am making one of these twist clamps and I need your help to understand the working of the tool properly.

Indeed, the link moved. If you go to the store link at top right on that page you can buy the plans from there. Cheers!

nstraw (author)2015-10-25

link is dead and now costs $10 for the plans

Switch and Lever (author)nstraw2015-10-26

Yep, that is true. I decided as I was putting a lot of time and effort into making these videos and plans, and getting little in return, that I would offer the plans for cheap rather than for free.

savageeuge (author)2014-04-10

Can you please post the print outs you made of the brackets. Thanks

Hmm, it shouldn't be hard to reproduce them from the plans posted, though if you wish I can send you a DXF file with the flat drawings.

Marsh (author)2014-04-03

I've seen this same clamp made entirely out of wood too!

Switch and Lever (author)Marsh2014-04-04

Indeed! John Heisz (of ibuildit.ca) has made one. I had been looking at the Kant twists for a while, but when he made his wooden clamp I got inspired to finally start work on my own metal one. I definitely recommend checking out his videos if you don't know about him.

Cheers!

Marsh (author)Switch and Lever2014-04-07

That's him! I'm a subscriber on YouTube. Great stuff there!

Vidar_76 (author)2014-04-05

Nice done!
Thinking of how to convince my headmaster that my 9-12 year old pupils really needs the metal machines...

Start the lathe, toss them at it, whoever makes it through to the other side graduates as being allowed to use them. Easy!

The same as i do with knifes and chisels :D

Mikeyfl (author)2014-04-04

I made one just like this 40 years ago when I was an apprentice at apprentice school, I still have it in a toolbox somewhere Nice project

Switch and Lever (author)Mikeyfl2014-04-06

That's the beauty of home made tools, make them properly and they'll last forever. Can't wait until this gets some patina and dirt on it from use.

sir_ghattas (author)2014-04-02

Great design, love the simplicity.

Yeah, I really like them. Thank you!

AJMansfield (author)2014-04-03

I love your videos, can't wait for more!

There will be, for sure. All it depends on is how much free time I have available. Thank you!

tapiwoski (author)2014-04-01

hermoso trabajo!!! felicitaciones...

I don't know what that means, but thank you...I guess?

Ha. He says: "beautiful work! congratulations ..."

You may want to bookmark this site and have it readily available.

http://translate.google.com/

Yep, I'm very aware of Google Translate, but in my experience it makes absolutely horrible work of online commentary, so if I don't understand I'd rather ask than assume a meaning which may be wrong.

Thanks though!

means beautiful work! Greeting Card (more or less)

do not know much English

Ah, thank you, you're welcome!

2ndopinion (author)2014-04-03

Great instruct....thanks.

Cheers!

Coffeinated (author)2014-04-03

They are actually available in Germany, google for a Kant-Twist Schraubzwinge. There shouldn't be any import charges inside the EU. Still, you would have to pay the shipping, but maybe, if you need a bigger one or something, that would be an option :)

Oh yeah, I see. They're made by a different company than the US ones (and seems to be quite a bit more expensive from the online retailers). Thanks though, I didn't know they existed elsewhere.

agis68 (author)2014-04-04

great idea and instructable

Switch and Lever (author)agis682014-04-04

Cheers! Glad you liked it!

blipvert (author)2014-04-04

What cad package do you use? I like the assembly animations and the isometric parts plans. Great instructable!

It's all Solidworks, super handy package to learn.

samchamb (author)2014-04-04

clearly a work of art .

Thank you, and I would definitely say that about the original one, but since I more or less just copied it I wouldn't call what I'm making "art"

Cheers!

Sergiozal (author)2014-04-04

Completelly unusefull instructional. - you just need to buy a milling machine, a drilling machining, a lathe and a bunch of measuring and lay-out tools to do something that worths a couple tents of dollars. But it is a good class for mid-professional students

While I understand your frustration, I made that clear in the description. If all you have is a nail file and some q-tips, this is not going to work for you (then again, neither is most of the other instructables here). You can, however, go to a Techshop if there is one nearby, or you can explore methods using alternative tooling to get the job done.

Thanks for your comment!

nathanrudolf (author)Sergiozal2014-04-04

So, because you don't have the correct tools, it must be "unuseful" (otherwise known as useless) for everyone? Then by your logic, 90% of the instructables are useless to everyone because they'd have to buy an arduino, or later cutter, or sewing machine, or screwdriver... I don't have a mill, but after calling some machine shops, I found out I'm able to get some time to use one.

wambs8 (author)2014-04-01

Great Video. I have been wanting a set of these for work, but they are kind of expensive. I guess I will be making a set of them

Thanks

Switch and Lever (author)wambs82014-04-02

Depends on the size you want, you can get ones which are similar to the size I made for around $10-12. If you frequent flea markets and such these come up from time to time as I've understood from my US machine shop friends.

Yeah - you can get them new for $10 or less - or spend more depending on size, etc.

http://www.use-enco.com/CGI/INLMK32?PARTPG=INSRAR2

Greg Pless (author)2014-04-01

Well done and Great Video! Now you only have to make five different sizes and two of each for your shop. ;-)

Yes, when I have more time, so 2015 sometime. Haha!

nong_noi (author)2014-03-31

Wow, that was great. You did such a great job documenting your process. I love Kant Twists but never thought of making my own. I'm surprised you don't have access to them in Sweden. Can you order from US websites? I guess you have the pride of showing them off as they look as good as the actual thing.

Good job!

I could definitely order them from the US, but then I'm slapped with import charges which makes them at least 30-40% more expensive than the original US price. For that I'd gladly spend some free time and make them, and at the same time hone my craft and problem solving.

Cheers!

pfred2 (author)2014-03-31

We had one of those clamps at the machine shop I used to work at. I'd use it to clamp bars together on the roller table loading them into a hydraulic automatic feed horizontal band saw. That sure was one amazing saw. The clamp was kind of a POS though. I guess the clamp did the job. It was kind of bent a bit from being over tightened. That saw would cut cold rolled steel like it was soft pine though.

Switch and Lever (author)pfred22014-04-02

Yeah, that's I guess the downside, they're not made for the most hardcore of clamping operations, but do definitely have their place in the clamp-park.

cobourgdave (author)2014-03-31

Very nice instructable. Clear, concise and easy to follow.

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