Almost forgot to add the link to the e-drawing. It is quite simple but should be good enough for you to get started. imgur.com/a/dIIQWqd EDIT: Revised drawing with slightly reduced angles to help prevent the moving jaw from sticking.
great version of this type of clamp and thanks for the drawing. TheMetalRaymond did a similar thing, but bigger, chunkier and didn't bother with the dovetail. ua-cam.com/video/IR2p9ceg1bw/v-deo.html The other thing he did which might interest you before you harden the front edge is the step the front so it has a much lower front face. You could easily do the same with you clamp if it were a bit thicker or you could bolt a jaw onto it. That way you'd be able to completely face a slab of material like the one you demoed.
Beautifully simple design, I really like it. In the absence of hard teeth to bite into the workpiece you could probably use a piece of emery paper between the clamp and workpiece to get some extra bite.
@@Hendreh1 The effectiveness of the clamping force is dependent on how steep or shallow the wedging angle is. There are 2 piece bed jaw systems working on this principle that hold the workpiece very firmly
@@howardosborne8647 as I said , I have really used These clamps. And the angle was not an issue . But the Holding force of the t-nut in the table . It Moves sideways.
Great project and simple to make, I can see having a set of these will get me down to ground zero when the vice isn't the greatest choice. Cheers and thanks!
The ole k.i.s.s. method for the win! I always feel you need to clamp something down, not across but that is a solid idea. The best part is if you need to clamp low objects you could use some thin stock in between the clamp and the part to be machined to give the cutter clearance? Just thinking out loud on that one. Keep up the good work!
Congratulations for your work. I have just one suggestion for the moving part of the clamp. As you you tighten the screw, the T bolt will be both moved forward and upwards. This tiny forward movement could damage your milling bed from underneath. In order to prevent that, just mill an ellipse into the moving part, instead of a exact hole for the allen screw. I believe that this will allow a kind of "tilt" of the screw and this will prevent the milling bed from getting damaged. I am not quite sure if this is the best solution for that, but it is the one that I thought now.
Have always had to use hold down dogs but often they get in the way and anytime you unclamp and reclamp to continue a pass you chance introducing errors. I love these and plan to build some of varying thicknesses. Thanks for a great video!
This is brillant ! I am watching your videos for a long time and really appreciate all you achieve with hobby tools. And by the way, english is not my mother language, I love your accent !!!
Nice video. If you take a few millimeters off the bottom of the moving jaw (making it shorter than the fixed piece), it will probably be useful in more situations/configurations.
Great design and I may well make up some myself. For the moveable jaw, if you milled it with an L shape so that only the bottom 5 - 10 mm is holding the work, this pushes the clamp back and allows access to mill the top of the work.
I made a prototype without them, and you might see them in the video where I use them. They worked fine, but I seemed to get slightly better clamping with the dovetails, and they were a little easier to set up ands store. That's how I saw it, but you can always do it without them if want. Cheers
Nicely done, I think I might make some of these for my CNC! To get around the height issue, you could put another piece of material under the work piece to raise it up slightly. You would need something approximately the same size though, which might not always be practical.
I am concerned by potential T-slot damage. The fixed jaw is clamped to the table, with a compressive force applied to the cast iron table - equal and opposite along the T-slot bolt. The moving jaw is pulled down to the T-slot nut, but there is no equal and opposite force applied in the axis of the bolt (there is a gap between the jaw and the table), so there will be a torque and tension in the T-slot. Overtighten the clamp and the T-slot might break.
@@artisanmakes Make friends at a local scrap yard! Tell them you're a hobby machinist and take along some items you have made. Offcuts from screw-machine shops and fabricators go a long way to reducing costs. Tool steel you can get from annealed automotive springs. For complex items such as machined-from-solid crank shafts I purchase a piece of stressproof aka 1144 machinery steel. Your low rise clamps are very nice and useful indeed. To resist wear and tear, case hardening or pack hardening would be a useful.
when you were adding the angle, around 2:30 or so, i noticed you did a deeper cut left to right than right to left - was there a reason for doing so? looks as though maybe right to left was a ""spring pass"", i didn't think that would be necessary for a fly cutter?
I made a prototype without them, and you might see them in the video where I use them. They worked fine, but I seemed to get slightly better clamping with the dovetails, and they were a little easier to set up. That's how I saw it. Cheers
Those should have a slight dab of moly or graphite grease, on the sliding surfaces of the dovetails and the Tnuts should be well greased aswell as the whole mechanism has a lot of interference with itself, the part its holding and the table`s tslots via tnuts while being tightened... A great design, tho its one, like a two piece vise, that i would use with a separate tslot base affixed to the mill table, as not to mangle the table, given that it essentially relies on the strength of the Tslots for its max clamping capacity, and when shit shifts around, you tend to crank it down doubly as hard, and that is a surefire way to excavate a chunk of your table... And the only thing as bad as that is getting caught by a machine itself and being mangled unto death...
Nicely made. Making the clamp with a dove tail isn't really necessary. A square slot or no slot at all would suffice. The clamping jaw isn't seeing any side loading or twisting as it is screwed down. Slotting the clamp screw hole, as some have suggested, isn't much needed either. A good clearance hole in the moving clamping block would be ample. Once set, the clamping block is only moving a few thousants of an inch against the work as it is clamped down If you don't bother cutting mating tongues and slots, you could make two or three of these clamps in no time. As rarely as you need them, I wouldn't bother hardening them. That way you can always modify the jaws for a specific job or just cut into them if needed since replacements are so easy to make.
You don't have to add them.i made one without them and the clamping force was slightly better with them. Plus it helps align them so they are easier to set up and store. In my opinion they are worth adding
Instead of hardening the clamping jaw, you could incorporate hardened serrated gripper inserts. McMaster Carr and CarrLane carry these. I was a tool and die designer years ago and designed many a fix and fixture with these type gripper inserts.
Nice project. I would think that the dovetail isn't actually needed. Just the slot and tang would hold it in place. Not everyone is going to have dovetail cutters.
You don't have to add them.i made one without them and the clamping force was slightly better with them. Plus it helps align them so they are easier to set up and store. In my opinion they are worth adding but of course you can change up the design as much as you want to suit your set up.
I'm pretty sure you also need double T-slot nuts for this project ;) Basically a double length nut with two threads. It will serve many purposes: - clamp alignment - keeps the clamps together in storage - better force distribution and above everything else: It will just make some additional content for us to consume 😁😁😁
Great idea and video. I've started making a set of these using your drawing as a starting point - just finished the dovetails (my first ever). I notice you have changed the drawing slightly so the moving jaw is the male part of the dovetail, but in the video you have them the other way round? Is there a preferred orientation for this kind of application or does it really not matter?
Nice video Artisan! If it would help you, there are hardened grip inserts on the market for brand name vise jaws. You could machine pockets for these and add them in your design if need arise. Have fun
So much effort for something that I wouldn’t trust unless I was absolutely stuck for options. I’ve been doing CNC machining for nearly 20yrs now, similar clamps to this are sold to the industry and I’ve had to use them maybe 3 or 4 times, they can be problematic and I would really be taking it easy with my cuts.
I wouldn't use these for industrial machining, but this whole channel is not geared towards that type of machining, its just a hobby. With that said these clamps seem to be very effective for the work i do and I'd trust them as much as I've had to trust toe clamps in the past.
Hi, could you tell me why the dovetail slots are necessary? Would a regular straight slot not suffice? or maybe no slots at all since the bolts will keep the clamps from sliding away? This is a genuine question to gain understanding and not intended to question your design.
Keeping them unhardened also means you can use them on finished surfaces on some materials and it won’t mar them. Of course you can add a softer face if that is a concern for other materials.
You could make extra long T-Nuts with an additional threaded hole and run a stud and nut through it as well, clamping the nut and a 123 block onto the top of the table. This would greatly increase the resistance of the fixed block to keep it from moving.
I will say that these are a modified version of clamps I (eventually) learned to love. This is a great alternative. Only downside is the possibility of pulling the part down to the table. Aka if the part is warped and you pull it straight, when you loosen the clamps, the part will spring back to not flat.
Not a downside of the clamps, every holding method has the same problem. The problem can be solved by shimming the workpiece from the clamping location, so that it when it pulls down, it as a solid rest under it, thus no warping.
Will the off-axis engagement of the inner t-nut cause damage to your t-slots/t-nuts? I'm guessing that the cam-over will be pretty small, but I can't figure out if it is too small to cause problems. (PS comment mostly for algo bump ;-)
To answer your question, i don't know but I wouldn't assume so. If it is something that you might be worried about you can always just make one long t nut with two threaded holes so any deflection is taken up by the cap screw threads and the t nut should sit flush.
Very nice job well designed and executed. Can you tell me what is the end mill holder in the last scene? I know you usually use R32 collets but this looks different. Cheers,
Im am going to try to make some of them, the only thing i would add is some serrations on the clamping face & maybe case harden them. Is it possible to get the drawings in PDF format?
Great project & tutorial! QUESTION: Does the fact they're not hardened yield a better bite? Seems the softer metal would be "stickier" whereas hardened metal would be more "slippery." So, the un-hardened may actually function better, no? I could be wrong. I'm thinking in terms of woodworking where we want soft-wood or even cork-lined clamp jaw faces for best holding function. Wondering if same principal applies to metal ??? Thank you!
Yeah definitely. A good analogy that I use is that copper soft jaws usually hold much better than hardened steel but of course you have to deal with wear and tear. I'm sure if would apply here and if you choose to to harden it would depend on your use case
Maybe a little less convenient and not as elegant, but certainly easier to make, especially if you don't have a dovetail cutter. Just a simple slot and tenon to stop sideways movement.
Almost forgot to add the link to the e-drawing. It is quite simple but should be good enough for you to get started. imgur.com/a/dIIQWqd
EDIT: Revised drawing with slightly reduced angles to help prevent the moving jaw from sticking.
link is not working But thats great and simple thanks for sharing cant wait to make my self.
Thanks mate, now I have something to work on rather than sitting on the Couch. Cheers my friend.👍🍻
@@mysterysniper910 the link works fine here
Maybe next time you use a file and hacksaw to cut steel, instead try using a cut off tool 😜 or steel cutting wire 🤣
great version of this type of clamp and thanks for the drawing.
TheMetalRaymond did a similar thing, but bigger, chunkier and didn't bother with the dovetail.
ua-cam.com/video/IR2p9ceg1bw/v-deo.html
The other thing he did which might interest you before you harden the front edge is the step the front so it has a much lower front face. You could easily do the same with you clamp if it were a bit thicker or you could bolt a jaw onto it. That way you'd be able to completely face a slab of material like the one you demoed.
Beautifully simple design, I really like it. In the absence of hard teeth to bite into the workpiece you could probably use a piece of emery paper between the clamp and workpiece to get some extra bite.
Awesome idea. I nevet thought of that.
I had once these clamps . Be aware they hold much less than a vise or regular clamps
@@Hendreh1 The effectiveness of the clamping force is dependent on how steep or shallow the wedging angle is. There are 2 piece bed jaw systems working on this principle that hold the workpiece very firmly
@@howardosborne8647 as I said , I have really used These clamps. And the angle was not an issue . But the Holding force of the t-nut in the table . It Moves sideways.
@@Hendreh1 The simple solution there is to make a longer Tee nut which has a larger surface footprint.
Nice work, man! You've got me thinking of some projects I would need these for just as an excuse to make a set
Side project- 1
Go ahead, i'd love to see you improve upon these
@@artisanmakes Not much I would change honestly. Maybe a unified t-nut so it all stays together. But thats just me being picky 😁
@@InheritanceMachining Looking forward to it...this is gonna be good!
Side projects for the side projects??
I really appreciate the lengths you’re willing to go to maximize what you can do on a modest sized mill.
Wow....easy to make , reliable method of clamping, and cheap.... all 3 points a home diy machinist is looking for thanks for sharing!!!!!
Great project and simple to make, I can see having a set of these will get me down to ground zero when the vice isn't the greatest choice. Cheers and thanks!
The ole k.i.s.s. method for the win!
I always feel you need to clamp something down, not across but that is a solid idea. The best part is if you need to clamp low objects you could use some thin stock in between
the clamp and the part to be machined to give the cutter clearance? Just thinking out loud on that one.
Keep up the good work!
Yeah I'm sure there are many ways of going about using them
I actually love how clean your machine is and how nice you keep it. My machines are always covered in coolant and swarf. Great work 👌
Congratulations for your work. I have just one suggestion for the moving part of the clamp. As you you tighten the screw, the T bolt will be both moved forward and upwards. This tiny forward movement could damage your milling bed from underneath. In order to prevent that, just mill an ellipse into the moving part, instead of a exact hole for the allen screw. I believe that this will allow a kind of "tilt" of the screw and this will prevent the milling bed from getting damaged. I am not quite sure if this is the best solution for that, but it is the one that I thought now.
What an elegant solution! I've been pondering how to make a clamp to do this job I will be making my own set very soon!
I like the design and simplicity of these clamps. I reckon these would also be useful on the shaper table to hold stock for light finishing cuts.
I like it and a sliver of sandpaper between the part and the clamp could be added for extra holding. Thanks for sharing!
What an Excellent design, simple and effective, the way it should be…
Have always had to use hold down dogs but often they get in the way and anytime you unclamp and reclamp to continue a pass you chance introducing errors. I love these and plan to build some of varying thicknesses. Thanks for a great video!
This is brillant !
I am watching your videos for a long time and really appreciate all you achieve with hobby tools. And by the way, english is not my mother language, I love your accent !!!
Nice video. If you take a few millimeters off the bottom of the moving jaw (making it shorter than the fixed piece), it will probably be useful in more situations/configurations.
I am sure that would be an excellent idea
Great design and I may well make up some myself.
For the moveable jaw, if you milled it with an L shape so that only the bottom 5 - 10 mm is holding the work, this pushes the clamp back and allows access to mill the top of the work.
Nice.
I never think of using my fly cutters that way. Smart
Idk about anyone else but I really enjoy watching / hearing that fly cutter
Man your parts have come a really long ways. Nice work brother. Those dovetail clamps look really nice.
Thanks. That is a really simple but very useful tool.
Cheers from Canada
Interesting idea. I'm guessing it would work without the dovetails too...
I made a prototype without them, and you might see them in the video where I use them. They worked fine, but I seemed to get slightly better clamping with the dovetails, and they were a little easier to set up ands store. That's how I saw it, but you can always do it without them if want. Cheers
I'd guess even a simple keyway would be fine. Anything to keep the halves located in the presence of lateral force would serve the purpose, no?
Im sure you could approach this many different ways and get similar results
Nicely done, I think I might make some of these for my CNC! To get around the height issue, you could put another piece of material under the work piece to raise it up slightly. You would need something approximately the same size though, which might not always be practical.
I was thinking of the same thing. Perhaps the riser piece could be longer on one axis and clamped at the ends sticking past the actual work piece?
Thatsa fantastic mechanism, simple but elegant and sensible....very cool.
Wonderful design. I thought of a floating vice (e.g. this old tony)... yours is much simpler and a very elegant design.
That's absolutely ingenious!
Thanks for a very adaptable idea. Simply brilliant
I am concerned by potential T-slot damage. The fixed jaw is clamped to the table, with a compressive force applied to the cast iron table - equal and opposite along the T-slot bolt. The moving jaw is pulled down to the T-slot nut, but there is no equal and opposite force applied in the axis of the bolt (there is a gap between the jaw and the table), so there will be a torque and tension in the T-slot. Overtighten the clamp and the T-slot might break.
LOL, why better then the ones This Old Tony tried to make.
Simple and effective design. Love it.
Great design! I’ve been looking for something exactly like this. Any chance you’ll be making any more?
I probably will once I get more material, everything seems to be on backorder at the suppliers these days :)
@@artisanmakes Make friends at a local scrap yard! Tell them you're a hobby machinist and take along some items you have made.
Offcuts from screw-machine shops and fabricators go a long way to reducing costs.
Tool steel you can get from annealed automotive springs.
For complex items such as machined-from-solid crank shafts I purchase a piece of stressproof aka 1144 machinery steel.
Your low rise clamps are very nice and useful indeed. To resist wear and tear, case hardening or pack hardening would be a useful.
when you were adding the angle, around 2:30 or so, i noticed you did a deeper cut left to right than right to left - was there a reason for doing so? looks as though maybe right to left was a ""spring pass"", i didn't think that would be necessary for a fly cutter?
The insert was a bit worn on the front but still very sharp on the back so it could take a deeper cut on the back pass
@@artisanmakes Ahh that makes perfect sense, thanks (:
I like the Eccentric Cam Lock style but I can see myself making a set of these in S7 and run them Thru the Ovens.
Beautiful design! Hats off to you.
Great idea and execution. True engineering.
Thank you very much!
I like yours better than most store bought ones!
Very clever! :)
Like it, the dove tale wasnt entirely nessasery,, as the bolts center in the tslot? Whats your thoughts?
I made a prototype without them, and you might see them in the video where I use them. They worked fine, but I seemed to get slightly better clamping with the dovetails, and they were a little easier to set up. That's how I saw it. Cheers
Very good design! So far, I like your the most, than I like Harold Hall's. I'll be needing them really soon.
Those should have a slight dab of moly or graphite grease, on the sliding surfaces of the dovetails and the Tnuts should be well greased aswell as the whole mechanism has a lot of interference with itself, the part its holding and the table`s tslots via tnuts while being tightened... A great design, tho its one, like a two piece vise, that i would use with a separate tslot base affixed to the mill table, as not to mangle the table, given that it essentially relies on the strength of the Tslots for its max clamping capacity, and when shit shifts around, you tend to crank it down doubly as hard, and that is a surefire way to excavate a chunk of your table... And the only thing as bad as that is getting caught by a machine itself and being mangled unto death...
Side clamps underestimated but very important
Hi , Thank you for sharing this helpful item, will be a great asset, thanks for supplying the plan. Top videos and top knowledge passed on.
Nice idea. I wonder though - Couldn't a simpler 'tongue and groove' joint be made to work just as well?
Thanks for sharing this with us!
Nicely made. Making the clamp with a dove tail isn't really necessary. A square slot or no slot at all would suffice. The clamping jaw isn't seeing any side loading or twisting as it is screwed down. Slotting the clamp screw hole, as some have suggested, isn't much needed either. A good clearance hole in the moving clamping block would be ample. Once set, the clamping block is only moving a few thousants of an inch against the work as it is clamped down
If you don't bother cutting mating tongues and slots, you could make two or three of these clamps in no time. As rarely as you need them, I wouldn't bother hardening them. That way you can always modify the jaws for a specific job or just cut into them if needed since replacements are so easy to make.
My thoughts exactly!
You don't have to add them.i made one without them and the clamping force was slightly better with them. Plus it helps align them so they are easier to set up and store. In my opinion they are worth adding
Instead of hardening the clamping jaw, you could incorporate hardened serrated gripper inserts. McMaster Carr and CarrLane carry these. I was a tool and die designer years ago and designed many a fix and fixture with these type gripper inserts.
Nice project. I would think that the dovetail isn't actually needed. Just the slot and tang would hold it in place. Not everyone is going to have dovetail cutters.
You don't have to add them.i made one without them and the clamping force was slightly better with them. Plus it helps align them so they are easier to set up and store. In my opinion they are worth adding but of course you can change up the design as much as you want to suit your set up.
Well thought out young fellar--first class idea and explanation..--thanks a million E
This is absolutely wonderful.
Awesome. Thanks for the video and the drawing
Hey, that’s a great idea. Well done!
Lovely work, if the piece clamping the work had a step to clear the cutting tool I think that would help as well, nicely done.
I'm pretty sure you also need double T-slot nuts for this project ;) Basically a double length nut with two threads. It will serve many purposes:
- clamp alignment
- keeps the clamps together in storage
- better force distribution
and above everything else: It will just make some additional content for us to consume 😁😁😁
that would actually work against the mechanics of the clamp as the two bolts slightly move together while clamping...
Good work yet again, and thanks for including the drawings. We shared this video on our homemade tools forum this week 😎
Great work. Amazing stuff
Great idea!
Nice work. Have you considered case hardening your clamp? From what I read, it will improve their wear characteristics dramatically.
Wait about two weeks and ill have a case hardening video up. Case hardening does work but it is a very involved and drawn out process. cheers
Great idea and video. I've started making a set of these using your drawing as a starting point - just finished the dovetails (my first ever). I notice you have changed the drawing slightly so the moving jaw is the male part of the dovetail, but in the video you have them the other way round? Is there a preferred orientation for this kind of application or does it really not matter?
really nice , definately make some for my mill, thankyou for the video
I got curious about how would you make the one with the captive screw
very nice, but the second locking bolt should be a stud for more downword gripping movement !!
Excellent clamps my friend!
Nice video Artisan!
If it would help you, there are hardened grip inserts on the market for brand name vise jaws. You could machine pockets for these and add them in your design if need arise.
Have fun
What a clever design.
Great Idea. I will definitely make a couple of them.
I think with the softer metal, it will hold up together better. If it's harder, it easier slip the workpiece.
Probably but in sure there are some set ups where one might benefit from having a hardened jaw. Cheers
So much effort for something that I wouldn’t trust unless I was absolutely stuck for options. I’ve been doing CNC machining for nearly 20yrs now, similar clamps to this are sold to the industry and I’ve had to use them maybe 3 or 4 times, they can be problematic and I would really be taking it easy with my cuts.
I wouldn't use these for industrial machining, but this whole channel is not geared towards that type of machining, its just a hobby. With that said these clamps seem to be very effective for the work i do and I'd trust them as much as I've had to trust toe clamps in the past.
Hi, could you tell me why the dovetail slots are necessary? Would a regular straight slot not suffice? or maybe no slots at all since the bolts will keep the clamps from sliding away? This is a genuine question to gain understanding and not intended to question your design.
Helps keep everything aligned when it’s not clamped
Keeping them unhardened also means you can use them on finished surfaces on some materials and it won’t mar them. Of course you can add a softer face if that is a concern for other materials.
Couldn't yo use a spacer or set of small parallels to lift the part above the clamps??
Ill make a pair based on your excellent design
I think that’s a GREAT idea
I like it . Simple and works excellent.
such a cool design
I like it, I want to make it! What are the tolerances in metric of the dovetails?
I think a tang on the bottom would be of help. It would keep it from twisting
That's a clever idea!
You could make extra long T-Nuts with an additional threaded hole and run a stud and nut through it as well, clamping the nut and a 123 block onto the top of the table. This would greatly increase the resistance of the fixed block to keep it from moving.
Yes, I'm sure that would work very well
Great video. I just might make a few of these today. :) Thanks for sharing.
Thank You man for your work
I will say that these are a modified version of clamps I (eventually) learned to love. This is a great alternative. Only downside is the possibility of pulling the part down to the table. Aka if the part is warped and you pull it straight, when you loosen the clamps, the part will spring back to not flat.
Not a downside of the clamps, every holding method has the same problem. The problem can be solved by shimming the workpiece from the clamping location, so that it when it pulls down, it as a solid rest under it, thus no warping.
Will the off-axis engagement of the inner t-nut cause damage to your t-slots/t-nuts? I'm guessing that the cam-over will be pretty small, but I can't figure out if it is too small to cause problems. (PS comment mostly for algo bump ;-)
To answer your question, i don't know but I wouldn't assume so. If it is something that you might be worried about you can always just make one long t nut with two threaded holes so any deflection is taken up by the cap screw threads and the t nut should sit flush.
@@artisanmakes of you do that you will probably need to make the hole in the moving part of the clamp into a slot
You could also do that too
Hi, superb design. Can the clamp push the part flat downward to the table? Or will there be a little gap?
dove tail or just a groove? for those who don't have a dove tail cutter?
That is indeed a good idea.
Nice work 👍
Excellent job. Very good idea.
Nice! Love the downward clamping force these must offer over other designs
Very nice job well designed and executed. Can you tell me what is the end mill holder in the last scene? I know you usually use R32 collets but this looks different. Cheers,
Looks like an hydraulic chuck...
@@Jabba410 Im relatively new to machining so never heard or seen one before. A little googling revealed something new- thanks.
It is a custom heat shrink tool that i made a while back
Love it. Simple. Thanks for sharing!
Im am going to try to make some of them, the only thing i would add is some serrations on the clamping face & maybe case harden them.
Is it possible to get the drawings in PDF format?
Great project & tutorial! QUESTION: Does the fact they're not hardened yield a better bite? Seems the softer metal would be "stickier" whereas hardened metal would be more "slippery." So, the un-hardened may actually function better, no? I could be wrong. I'm thinking in terms of woodworking where we want soft-wood or even cork-lined clamp jaw faces for best holding function. Wondering if same principal applies to metal ??? Thank you!
Yeah definitely. A good analogy that I use is that copper soft jaws usually hold much better than hardened steel but of course you have to deal with wear and tear. I'm sure if would apply here and if you choose to to harden it would depend on your use case
That is so clever!
I´m gonna make myself a set of those I think :D
Really nice idea, probably worth not hardening them to protect the stock?
That would really be up to you and what you intend to use these for. I wont but I am sure that some people will.
Could these be made with straight cuts instead of dovetails to simplify the machining or would they not work correctly like that?
you certainly can, they just take a bit more care to keep aligned before tightening
Simple and effective, nice work
Why not prefer a cam screw eccentric clamp instead? That way you would have access to all the part?
Maybe a little less convenient and not as elegant, but certainly easier to make, especially if you don't have a dovetail cutter. Just a simple slot and tenon to stop sideways movement.
Nice simple clamp cheers.
Nicely done, thank you for sharing the process.
really smart idea