Making and Testing a New Woodworking Joint

[@liqing5046]

The author does like to kzbin.infoUgkxkNYRBJuiJ6EwD-tQSAlxg0eFKsnR2cgz from scratch, shaping and trimming wood from large blocks into fine finished products. As another reviewer mentioned, most projects require a lot of high-dollar equipment that most of us don’t have the room or budget for. But, knowing how to do these things, even if we won’t be able to practice the full stack project, is still great.

[@barriowoodworks]

You never know what to expect from a Four Eyes video. Not just from the woodworking aspect but from a production standpoint. Love, the reality tv style presentation. We never really see Chris doing his thing behind the scenes.

[@Foureyes.Furniture]

Thanks. We're definitely planning on showing more of those moments.

[@juancamore05]

Very cool experiment, but I think a better test would be to apply a constant weight over a period of time and increasing little by little until reaching the point of failure. This will approximate real life conditions better than a sudden impact at the highest point of leverage.

[@benmooreman]

Agree - this test may have been more a test of brittle breakage versus stress.

[@code-fox]

Gradual increase in pressure over time is more realistic than a sudden impact? You obviously haven't met my kids!! LOL!!

[@juancamore05]

Lol. It’s funny because I was going to say unless you practice WWE moves at home, but deleted that part of the comment 😂

[@MachineRight]

Isopropyl alcohol is your best friend for removing hot glue, it basically takes its adhesion away and I generally apply it with a q-tip but just make sure it’s soaked works like a charm!

[@hungnguyen12481]

Good experiment. Last break proves that although the beginning of the break was forced at the corner of the epoxy piece, it eventually ripped at the wood-epoxy joint. But it does seem like the epoxy is adequately strong for lighter applications.

[@jbtallullah7009]

The Applebee's was funny, but the infomercial was straight fire. Loved the video.

[@SpencleyDesignCo]

😂I almost peed my pants during the epoxy infomercial

[@Foureyes.Furniture]

Some found it funny, others didn't....just all depends. :P

[@mmckeeha]

If Chris does this again, a standardized way of testing would be nice. Maybe put the leg in a vice and put a small platform on top. Them stack weights

[@williamellis8993]

Great experiment, Chris. Try one with the inside rounded instead of sharp. That would lessen the stress riser at that point. Bill

[@Foureyes.Furniture]

Good call. We were thinking of doing this same thing, and then using templates more like our normal workflow. Might have to play with that. :)

[@juancamore05]

What about doing one with a joint that starts out kind of like a domino but tapering the sides out a bit like an internal dovetail?

[@VanDerPol]

That was exactly my thought, too. Even though there are more optimized geometries (depending on load direction) a large circle with a polished surface will decrease the risk of crack formation. Interestingly, the splinter table broke at the exact same spot.

[@Skimmer203]

Trying something new, with the sort of candid audio? I don't hate it

[@Foureyes.Furniture]

Yeah, we went for a more "documentary" style with this one :)

[@Ethan-qe8pe]

The heat master joke was straight halarious lmao.

[@Foureyes.Furniture]

Glad you enjoyed :)

[@jimkettle4487]

Great to see you experimenting & having fun. That should always be a part of workshop activities.

[@yawnastyfpv6942]

In order to assess the load capacity of these joints, you would have to have a real form piece i.e. wood on wood joint of EACH style. Domino, mortise and tenon, edge surface to edge surface etc, in order to have a proper control subject. Only then can you accurately assess the load capacity of each. Start by increasing wait in increments of your choosing until the control joint fails and apply that same “to failure”process on the epoxy joint. You guys are inspirationally creative and the new content format is a huge success IMO. Please never stop being true to yourselves and the community and keep pushing the envelope. Great work!!

[@yawnastyfpv6942]

Weight

[@richs5422]

How about drilling some 1/16" holes in both pieces and using polished stainless rods to bridge the gap, then filling with epoxy. This "re-bar" would make the joint stronger and might look cool too.

[@ajc-th5ei]

I thought of two things you might try to increase the joint strength: 1) use a key bit to go down, then create a channel the epoxy will flow in so that it is inside the wood acting similar to my second recommendation, but with only the corner showing; or 2) Use a dovetail joint, so that the epoxy is not just on the corner, but within a channel in the wood also. It seemed the epoxy broke right at the connection to the wood itself. So making it inside a channel could greatly strengthen the joint, thereby allowing for a sturdier product while also giving the look being pursued here.

[@martinrandez7021]

Love your channel Chris! Your take on shooting and editing together those segments are very compelling. It's unique and quite refreshing. And so is your personality, your humor. Love it :)

[@ericliddle7556]

Definitely enjoyed the "behind the scenes" style on this one.

[@berndstrauss151]

thanks for the video. It is a nice idea. Try next time to machine a angled domino from clear acrylic on your CNC and then cast that part in Epoxy. This might create a stronger joint

[@Foureyes.Furniture]

Thanks for the tip!

[@stophnerf]

IIRC, fibreglass and epoxy have the same refractive index as each other, so you added a handful of fibreglass strips in the void before pouring the epoxy, they should theoretically disappear in the resin, but add a grain for added strength. Probably wouldn't improve the wood to epoxy bond. Don't quote me on it, I am not an epoxy surgeon.

[@garagemonkeysan]

Great video. Is this how you guys work together everyday? Just messing around. Looks fun. Wow, how deep do you go? Not just filming a fake commericial but filming the concept of the fake commercial. So entertaining. Mahalo for sharing! : )

[@maswis17]

U guys are amazing. Good humor, good skill etc. Thanks for the inspirations . U guys seems like a combination Of Pro Woorworker, Pro cameraman ,and Comedian at once

[@Foureyes.Furniture]

We are definitely all of those things...but definitely far from pro at any of them :)

[@miguelstraw218]

Hey Chris, enjoy your videos lol. Something on epoxy for other experiments. treat the wood first with a small amount of epoxy, then, give it a light sanding before you do the actual pour. this would prevent the bubbles. As someone that loves to work with epoxy, I freaking enjoyed this one (especially the informercial lol)

[@Foureyes.Furniture]

Good tip...thanks Miguel, and glad you enjoyed :)

[@handymadness]

Love the impromptu format.

[@taylorlibby7642]

Cool. I love empirical evidence and the process of testing in and of itself is fascinating to me. Thanks.

[@Foureyes.Furniture]

Glad you enjoyed it!

[@Gazman299]

Long brass screws through the invisible joints wood look sexy, and more than likely make the joint much stronger. Installed before the pour for resin clarity.

[@onehandedmaker]

Greetings from Australia. Love your work and channel.

[@reframeyourbody]

Supper cool look and idea! Just though you could screw the legs to a table top and test them in a more realistic scenario... Standing, or dancing on the table... Then as the first breaks you replace it with a vertical leg until the last standing...

[@Foureyes.Furniture]

Plus it would be a good excuse for me to get to dance on camera more :)

[@Nicolchu_]

loving that Air Jordan push-stick....

[@kennethnielsen3864]

Looking super cool.

[@Foureyes.Furniture]

Thank you! Cheers!

[@emeraldqueen1994]

Tip : hot glue is easy to remove with alcohol

[@joemacleod-iredale2888]

Very fancy boomerangs sir!

[@sailingeric]

You have inspired me with many a table build, now something new to try!

[@Foureyes.Furniture]

Go for it!

[@Odium1002]

Breaking stuff for s living sometimes. For the next time what you could do is clamp part of the leg, not including the joint part, and then using a string and someway to fasten weights, continue loading the other part of the leg with increasing weights. Then you know which mass was required to break the joint.

[@mrtnsnp]

Embedding some glass fiber would make the joint a lot stronger. You could link that with domino recesses. The fiber would be invisible in the result.

[@acultivatedspecies]

Love that style of video from you guys, thanks, keep it up.

[@MTJESQinMN]

Try spraying your mold with poly vinyl alcohol. You won't need to use a chisel to separate the part from the mold.

[@JohnMadeit]

Definitely want to try this design feature. It looks very cool.

[@Foureyes.Furniture]

Go for it!

[@kavinda_dilshan_paramsoodi]

watch this video in the middle of the night, and don't forget to use your headphone. Listen to those crispy feeling sound noises that come from the hot glue gun. Damn, that makes me feel so good.

[@zachwolf5122]

I like this format

[@nofodesignco.9980]

I really enjoy when you do these types of videos, but I thought the filming style was a little distracting. Keep up the good work though!

[@MadeByMarylou]

I loved this video style!

[@inceptiondeck]

Aw is was hoping for a mini Four legged table then you stand on it... great idea and a great video :)

[@joeljenkinson]

Would be awesome to see a test where you set up a jig to hold each leg in place and you pack weights on each of them, to see what strength the joint is. Can they take a toddler standing on a coffee table? Or maybe strong enough to hold an adult sitting on the table.

[@sreda_w]

in the epoxy experiment, you had to make domino holes in the wooden parts so that the epoxy would flow into them. This would have greatly increased reliability.

[@IAmKyleBrown]

Very cool look, and would be very fun if proven feasible. Maybe consider testing by clamping it to a table and then measuring the force to pull it apart.

[@Foureyes.Furniture]

Yeah, I was going to rig something up, but I got lazy

[@IAmKyleBrown]

@@Foureyes.Furniture just like the rest of us! Thanks again, this has me thinking ideas for a current project where some appearance of floating would help.

[@geraldpatrick9463]

I think the concept of "invisible joints" is interesting. I wonder if you couldn't achieve the same look with acrylic. You could use mortise and tenon joint with it and use a draw pin dowel to pull the joint together. I believe the acrylic would be stronger.

[@TimberBiscuitWoodworks]

I like this style of video! It's cool to see how you worked through the problems in "real-time" not to mention this is an interesting experiment. Floating TaBar coming soon!!

[@Foureyes.Furniture]

I'm in!

[@DanteYewToob]

I think for something small this could work well with thick acrylic cut to form mortise and tenon joints instead of casting epoxy… just as an alternative. I really like this idea though.. perhaps in the right situation you could get the epoxy/acrylic to be truly invisible with the right lighting… some cool levitating shelves or a small “magic” end table.

[@alanworks4354]

I'm wondering if the bubbles took away some of the strength. If you ever do any more experiments, try popping the bubbles with a torch, or maybe put the epoxy in a pressure pot before pouring. Loved the vid, though.

[@Foureyes.Furniture]

Good call. I'm sure it did weaken it a bit.

[@cursplat]

RTR

[@cedarriverwoodworking]

If you were going for documentary/ found footage (Blair witch shaky), you nailed it. Personally I like your more "produced" videos.

[@bambiertje]

If you want to make a joint like this really strong, put some fiberglass into the epoxy. It will still cure pretty much transparent but the epoxy would be much stronger. Or you could even start out by making a fiberglass domino, glueing that in and then pouring regular epoxy around.

[@Wordsnwood]

Cool joint, but I really think you should have tried a bit more to come up with a way to test it with a more consistent load. I've seen many videos by Matthias Wandel / Woodgears where he tested joints and he used basic things like a bathroom scale.

[@teejer90]

I was thinking maybe a floating spline would be stronger? Kinda like the epoxy with the domino mortise only with a spline groove in either leg piece

[@Foureyes.Furniture]

Definitely...and might look cool

[@TrapperWorks]

Talk about gimmicks, I can see right through this one! Appreciate you and your content!

[@Foureyes.Furniture]

I see what you did there :)

[@alduinc]

You destroyed the splinter console legs?!? It was beautiful 😭😁

[@djdishwasher]

Isopropyl alcohol is your best friend when it comes to cleaning up sticky resin residue. Or just sticky residue in general.

[@dirtyketchup]

It seems to be that the weakest points are where it grabs onto the wood, like its tensile strength far outweighs its mechanical grip to the wood surface. However, on your splinter piece, because the wood pieces were cuts, the epoxy seemed to have way more surface faces to hold onto, and I think that's why it didn't fail at those places. Typically, for woodworking applications, I don't usually see epoxy being used strictly on smooth cut surfaces. I wonder if there is another way to increase the mechanical grip to a wood face like that.

[@kkoff200]

I now have an urge to make epoxy and wood boomerangs.

[@Foureyes.Furniture]

I was talking about making a boomerang the other day :)

[@ChrisPage68]

@@Foureyes.Furniture Don't worry - it'll come back to you...😉

[@feltron]

Based off the thumbnail I came here to see you make a boomerang. Instead I get to see you break potential furniture legs.

[@catgynt9148]

Would your joints be stronger if you were to drill / gouge out domino holes and allow them to be filled with the resin materials.? Interesting educational experiments. Thanks for sharing this insightful video. Wishing you and your family a blessed new year. Peace brother

[@JohnFnLopez]

I wonder if dowel holes or biscuit holes in the joint for epoxy to fill would also add strength?

[@AllCost]

Hi, I follow your channel since you used the garage at home, I am an admirer of your techniques. I would like to leave a tip that maybe can improve the strength of the pieces. Try to machine a pit simulating a domino by filling the space with epoxy between the two pieces by forging an anchor between the two ends and making a single piece with a contact area of 95% more. Sorry for the English, I used google translator. Olá, acompanho seu canal desde que você usava a garagem de casa, sou um admirador das suas tecnica. Queria deixar uma dica que talvez possa melhorar a resistencia da peças. Tente usinar uma cava simulando um domino, ao preencher o espaço com epoxy entre as duas peças forjando uma ancora entre as duas extremidade e tonando uma unica peça e com uma área de contato de 95% a mais. Desculpe o inglês, usei google tradutor.

[@bopx]

lumber rack build video please

[@Foureyes.Furniture]

we definitely need one. Not sure if it'll be video worthy

[@lukerabin5079]

From my Australian sensibility, if you’re a Cubs fan, I can understand why you’re able to see what unfolds from a process when you’re not at all assured of a positive outcome. It’s a Cubs fan thing, right? 🤣 Go Sox!🥳

[@ChrisPage68]

A side table with epoxy legs or base would be a great floating piece.

[@karenmitchell6814]

Does acrylic show through resin? If not, what about using some short acrylic rods as dowels into the wood and the resin?

[@cguron]

Cool experiment to test the strength of joints for comparison. What if you embed high strength metal within epoxy? Would the joint be stronger?

[@mmmmmmm8706]

Always good. The small table design looks great. I wonder how much stronger the table leg joint would be as a a single piece instead of joineried together?

[@SamChaneyProductions]

This is really cool but it would be great if you made a simple testing setup to measure impact force

[@gaffyh1745]

Could you try a long dovetail joint in the wood and buy a piece of acrylic instead, give it the receiving dovetail joint and glue it in (or not) and see if that is stronger? Should be faster too as no need to wait for it to cure

[@nicolaspillot5789]

You could see matthias wandel's videos about testing wood joints and glues, i don't recall if he tested epoxy or not

[@craigchingren-hamann9700]

Chris - you and Mattias Wandell should get together and he could SCIENTIFCALLY test strength. Maybe you could make the joints and he could test them for you?

[@selwynadelson]

When cutting on your table saw you don't seem to produce sawdust or there is none apparent on the saw table even though you show no dust collector. How do you do this?

[@sudiku21]

I wouldn't call that an accurate experiment, but it could give you an idea. It's a good idea for something that only has to support its own weight and a little more. One ting that i noticed on this video is that you have some leakes on the vacum line hanging on the wall. I honestly think that the hot glue you used to hold the pieces in place would seal them pretty well. 😂

[@tunAliUTube]

No engineer know about this for sure. You just become an engineer for this topic, minus testing with a numeric result. Engineer need to test them when their is no code and regulation to follow with. Good job man.

[@tothag84]

I like this new style of video. Simple ☺. Also, I've noticed you speak more distinguished with your beard. I'll be curious to see if that changes once you shave it off 😂

[@dianeewoldt3035]

I LOVE the design, but wouldn’t an acrylic piece be a better solution than an epoxy pour? Tenon both ends of the spacer into mortises in the wood. Any milling can be polished to a glass sheen with Novus polishing compounds (or other brands). It would be definitely stronger, remain clear as long as epoxy and probably cheaper. My 2 cents,

[@boosbeest1146]

Do like the rougher video style. How about more of this with some old school "David Attenborough" voice over hybrid-ish. But on the content side: keep it up! Have been feeding my burgeoning "when i have time in the weekend maybe" wood stroking hobby for quite a while now. (should probably spend less time on youtube...) oh and something else. My one car garage also needs a lumber rack...(project?!) Thanks, and greetings from the Netherlands

[@IncendiaryMedia]

Do you think you could do this experiment again with some kind of glass fiber reinforcement? I'm not sure if there's a good reinforcement medium that closely enough matches the epoxy's refractive index, however.

[@dimitarpetrov6357]

Do it the same way but at the end of epoxy from the both side must be tenon and mortise in the wood..

[@ginav3879]

I'd love to see an epoxy bridle joint.

[@Foureyes.Furniture]

I'm not opposed to it.

[@PapaFlammy69]

That was sick, Chris

[@PapaFlammy69]

Loved the epoxy removal service ad btw XD

[@threehammers2516]

I was wondering when you were gonna break the legs on that other table! Been a while since that video came out haha

[@FrankGraffagnino]

love this idea and the creativity... but the dang camera kept making me nauseous.

[@lolaa2200]

Maybe try it with fiberglass flakes ?

[@darcipeeps]

Your pushblock is cool

[@someguynj]

What if you cut holes or ridges into the wood surface that the epoxy adheres to so you can dramatically increase the surface area and directional variety of the adhesion? Cool video as always.

[@donnygrahambuilds]

Fun experiment to mess around with. Priceless commentary - heat gun got me, and the infomercial almost left me in tears lol Also - whats the deal with the head...I'm guessing camera? Warby Parker getting into the tech game? haha

[@Foureyes.Furniture]

It's my fifth eye...channel name will be changing soon. Actually, it's a microphone :)

[@matinylam8349]

I think you should drill some hole in the wood side then fill it with epoxy. It may stronger.

[@bretticus4]

epoxy-removal commercial had me rolling. hilarious. you could get a little more scientific with the break-strength tests in an easy way: clamp the "vertical" leg to a table and start adding weights to a platform screwed to the horizontal one. you can then compare how much weight it takes to break each one.

[@Foureyes.Furniture]

For as much as I do it, I should just invest in some kind of joint breaking device. Glad you enjoyed the infomercial.

[@brianbu01]

Adding fiberglass would make it a ton stronger and still keep it transparent.

[@Danielism]

Laser cut a template to router the inside corner of the leg? It won't have a crisp edge, but a rounded inner corner is stronger than a crease

[@frank3722]

What type of wood was it? Is it k own to be waxy? Is it a dense wood? I think epoxy will hold to a non waxy wood or one with more porosity so that the epoxy might soak into the wood. Not sure if warming the epoxy a little would help it to penetrate would change things. Sure, too much heat could set it off too. I would put each part in a warm bath to help thin it a little

[@benmooreman]

What next? Epoxy half-lap joint? Epoxy castle joint? Expoxy dovetail? Tongue and groove?

[@Foureyes.Furniture]

All of the above :)

[@rickydegringo]

You're my new favourite channel. I am wondering though, the Song headphones, are they good at cancelling out machine noise (saws and sanders etc) when working?

[@patelkrunal311]

How do you afford all this Walnut and where do you source it from?

[@andreazanda8139]

they exhibit other resins besides the epoxy. test with vinylester and softer but adheres better

[@MrWizards1974]

Remake them all and send them to MatthiasWandel for proper testing.

[@samuelalcivar178]

Chris: "If its got melamine stuck to it, I'll heat it off" Me: TAKE MY MONEY. 🤣🤣

[@mrfochs]

Hear me out here... Resin Dovetails! One side is wood and the other is resin poured into the tail spots...

[@coreygagner7645]

John Malecki did that for a couple videos. It's been a while since I watched, so I don't remember how it went: kzbin.info/www/bejne/ap6udGysq7FoZ5I kzbin.info/www/bejne/kH2zi3d7ndmDiLM