Power hammer how-to

How I built my Davinci cam power hammer

[@Sickofsociety1]

This is my favorite design of the great DaVinci hammer. The hit rate is perfect and I'm going to look in different ways of increasing the strike weight. Springs would do it and I might go with a heavier head. Extremely well done. Thank you Sir.

[@cameronlewis995]

strap a section of 1.5" rod to the face of your hammer and you can get a more aggressive hit as well for drawing out! GREAT JOB!

[@trickywoo356]

I've been 'shopping' around youtube for which plan I'm going to use and the one on display here has my skin tingling to start building it... I like how you created the cam with wood and steel. I've got some 4140 2" round stock here that I'll use for the hammer; I think the circumference is less than your hammer but I've got about a meter of it so I can cut whatever length I need to get the desired weight. Many thanks for posting this; you just decided what my next build project is to become :)

[@johncrowe5164]

This is the Best Power Hammer Video I've Seen on KZbin! It's Simple Enough Most People Could Build it. It Also Looks to be Very Effective! Thanks

[@ColdWarVet607]

Nicely done! The turnbuckle tension adjust was a great idea. Great job, loved it!

[@davebridges6130]

I like the design. Simple & effective.

[@hdrjunkie]

It’s videos like this that keep me coming back to you tube, even with their crazy amount of ads on every video nowadays! Lol

[@Rocksaplenty]

(ublock origin, or skip to end and restart video on mobile)

[@hdrjunkie]

@@Rocksaplenty ??? “Unlock Origin” ?? Don’t know what that means... but I tried the other thing and it does not work. I still get all the ads.

[@Rocksaplenty]

@@hdrjunkie scroll all the way to the end and refresh the video. Sometimes the yellow spots are there but don't play. Also, ublock origin; spell check got mw

[@hdrjunkie]

@@Rocksaplenty ok I’ll try it again thanks!!!

[@petejay75]

You can also copy the link to the video and paste it into VLC player, which will then allow you to watch the video without any ads at all.

[@prairiecracker214]

Thanks for showing it operating, it is so disappointing to go through a whole video of someone showing their hammer but never seeing it perform. I think this worked out well, when you quoted how many strokes I thought that sounded way fast but seeing it work changed your mind. Thanks for sharing and I wish you much happy hammering

[@slimsammyone]

Awesome job. This is what KZbin should be.

[@raulduke7142]

What? You dont like the dancing and singing? I agree. This is a quality video.

[@gedhuffadine5796]

I have been looking at vids for a power hammer to date this is the best design well done great work

[@erolynbeachside2477]

The way is put together it's just really neat. I like the Nautilus of the cam the neat little reinforcement things that he put around in different places to make it last. and I really like the way that the rail section is bolted on with spikes and it's just a neat design.

[@RayFromTheHayclan]

Thank you.

[@beshkodiak]

About 25 years ago i had a full time smithy on my home property. I had a Little Giant 100 lb. hammer that i bolted to a concrete pad that i poured. I wanted to make sure it would not crack, nor let the hammer pound itself into the ground so i made that footing 3x5 feet x 4 foot thick with a re-bar cage reinforcement. That hammer was still loud.

[@pottervi]

Wow I'm impressed. When I first saw it I had my doubts but it looks great

[@Glaswalker1001]

"I have neighbors who life quite close to me, so I build a POWERHAMMER! But I used wood so they didn't find out until it's to late." Just kidding, nice video.

[@brendanshorter5550]

Wow. Works so much better than I expected.

[@MarcosAntonio-qi9cp]

Gracias por compartirlo! Es uno de los mejores modelos de martillo mecánico que encontré. El modelo es bastante compacto y simple, y los detalles están explicados magistralmente. Saludos!

[@guyh.4553]

Watching this again. Still awesome. The easy way to test the spring is to get a "pull scale", hook it up to the spring, & pull till you can't anymore the read the poundage. That's how much it is

[@markf6743]

Nice job Ray. I especially like the adjustable clutch and the cheap and effective concrete base. :)

[@danandreinicoara1872]

All the best ,a realy good explanation for us !Greeting from Austria!

[@jaredblumenshine]

It's cool to see the way people build things like this. I'm looking to build one myself but if I'm going to spend 500 dollars in parts I'd just buy one online. I'm not criticizing you by any means I think you did an awesome job

[@johnmac651]

Great video Ray and very nice setup. Looking forward to more videos from you. Cheers

[@perapetrovic2038]

Bravo Doctore !!!!! Svaka čast !!!!

[@RayFromTheHayclan]

👍

[@traceyluck8722]

Ray you may try a old truck hood spring for more power on the down for the hammer, Helluva job Sir I really like your design thanks

[@RayFromTheHayclan]

Thanks Tracey. Check out my power hammer update video where I added a larger spring. kzbin.info/www/bejne/hWWZlIePnLSKgaM

[@dashippo]

Honestly, that's fantastic.

[@olifobs3944]

Very nice work!! Alot of good ideas used

[@CreacionesAlejandro.]

Saludos Amigo.. Éxito y bendiciones desde Puerto Vallarta Jalisco México #PuroParriba

[@dbaider9467]

You have a brilliant mind.

[@experimentandoenlacocina5399]

The project looked very sloppy to me at the beginning, but when that started to hammer, man, I was totally impressed I have to say. Nice work!!

[@rancidpitts8243]

Pretty does not make anything work better. It's the Engineering, not the pretty that makes it what it does.

[@Dominick13777]

Love this thing!!! This most definitely will be helpful. Thank you.

[@boonedalton6201]

I saw in a previous heleve hammer video where the guy had put a spring towards the end of the handle aswell, nice hammer

[@boonedalton6201]

Also what is your rpm

[@johnperkins8895]

Nice work sir. I made one a couple years ago using the frame from a hospital bed.

[@leeknivek]

add two more springs of that size, and consider a different drive setup. 14:1 is beyond extreme for a v belt, so perhaps a jack shaft with two reductions (4:1, 4:1) will allow the engine to transmit more power and without wearing your belts too quickly. alternatively, a tire drive works well, too, and allows some variance in speed vs. power with fine foot control. ie, the tire is 20" diameter, say, fully inflated but when the pulley presses harder on it the diameter "becomes" 19" or 18", lower reduction, more speed. the reason power hammers are so complicated is to allow variance in speed, stroke, and power. otherwise, you'd just have an A-frame drop hammer.

[@RayFromTheHayclan]

Thank you Kevin. Some great suggestions.I would like to have more control of the hammer speed. A tire would be a good way to accomplish that.

[@JacktheFireEater]

What type of tire would you have to use for that, so that the belt wouldn't just slip off?

[@MerrimanDevonshire]

Mind you, if you want to keep your home address and credit card numbers private, avoid showing receipts from the local hardware store in your videos (5:30 mark)

[@rollandrasamimanana681]

Greats! Good design. I share the comment "simple & effective". Thanks for sharing

[@viscache1]

‘DaVinci Cam’ is actually a proportional mathematical ratio discovered by Greek mathematicians in the 1-3rd BC. It was appropriated by mr L DaVinci in many of his designs both failed and successful. But to call the ‘Golden Ratio a ‘DaVinci Cam or anything other than the Greek Golden Ratio or as many believe, ‘The Euclidean Ratio’ is inaccurate. Thanks for a great video! Looks like a hammer within my means!

[@Mbro420]

Fibonacci sequence

[@joetrump5844]

Thank you for sharing......... This set up, when tuned to what you are looking for (60# to 80# strike)....... is capable of doing what a $20,000.00 to $30,000.00 multiple ton press can do. Just looking at it....... with a little scavenging, and a little planning, That sucker is going to be an addition to my tinkering shop. 😎

[@garethbaus5471]

It is definitely a great tool at an affordable price, but it doesn't appear to offer the same precision and verity of function as a hydraulic press.

[@markthornhill519]

Hey be careful a lot of the plastic/ fiberglass handles are not as strong as they appear. Ive found some to be mere pegs inside the steel with some rubber or resin holding it in place...very deceiving. Might want to go to a steel handle. Just a thought. But i like the set up...simple yet works...great job

[@mephInc]

Even a wood handle would "let you know" that it's failing. These fiberglass ones just explode.

[@RandalLovelace]

Overall the design is beautiful and fully functional (oddly in craft work form usually follows function). Well done. Thinking about that spring set up, wondering if a system of springs (ie add one when working larger/thicker material, remove one when working finer/smaller materials) may be a thought for you?

[@RayFromTheHayclan]

Thank you Randal! Different spring sizes would work well with various stock sizes. I'm hoping to make improvements in the future, (variable speed control, quick change of springs and or head change out.)

[@joshm3484]

It's a cool design, but there's a reason you don't see too many using that cam. Using springs for the downward blow means the motor has to work against the springs to raise the hammer, limiting the spring weight that you can use. As you already have a cam lifting the hammer, it's more efficient to also have the cam lower the hammer, which can mean more powerful blows. Of course, all blacksmiths have their own preferences, and if that design works well for you, no need to change it.

[@westvirginiahellbilly8124]

To find out what the spring resistance is ,”poundage “ , simply figure out how far the spring has to stretch upwards , then just mark that point on the side , then un-hook the hammer and lean it back out of the way of the spring then tie it up there temporarily , that bastard sure would hurt if it fell down and hit ya !! LOL O.K., now make a trip to the nearest sporting good shop and buy a spring action fish and game scale , and when you get back just hook the scale to the spring and pull up to the farthest point of stretch , then just add what ever the scale read to the 10lbs weight of the hammer weight and that will tell you just about what the strike force is , well pretty close anyway !! Good luck and damn nice first hammer build !! But , I’m just a ol’ dumb ass coal miner from the hills of good ol’ W.V. LMAO , GOOD LUCK !!!

[@sandwon]

Great job on building this Great Machine!!!

[@RayFromTheHayclan]

Thank you.

[@ZfromC]

The belt tensioner is very elegant.

[@tacworx2]

Nice video heck of a layout!!! Well done sir!!

[@turso362]

Way to go great build I built my power hammer as well definitely a fun project.... keep up the good work!!

[@shanemiller285]

Very nicely done bud but you could have done it out of metal for that price from the scrap yard lol still love what you got iv been thinking about building me one like this with multiple size hammers weights

[@thomasbarrett8861]

Very cool hammer!! I’m gonna scrounge up some parts and get started on mine.

[@michaeljanes3726]

Are there any detailed plans and specs on this build It looks very nice Thanks for any help

[@japudjuha]

Awesome ingenuity mate well done 👍

[@Sickofsociety1]

Very nice. I may build 2 separate types. One being the hammer you built. Really nice!

[@jasdixon2497]

They are a little costly ($200) but you could consider using a VFD on your electric motor to adjust the hammer speed without having to rely on a foot pedal tensioner, it would save belts, and be easier to operate.

[@davepelfrey3958]

A really good and informative video. I like it alot.

[@guyh.4553]

THANK YOU! THANK YOU! THANK YOU! I have been looking for something like this for A LONG TIME!!!!! Do you have plan? THANK YOU! THANK YOU! THANK YOU!

[@TheKing-rp9by]

I to would like the blueprints to this machine

[@SculptyWorks]

This is brilliant. I love the simple ingenuity! :)

[@richardchase4019]

That's pretty cool......now last but least.... please make some belt guards

[@tom_olofsson]

Very nice setup.

[@RayFromTheHayclan]

Thank you.

[@kensmapleleafretirement]

Nice job. That is an ingenious piece of work... Thank you for sharing.....

[@davek5057]

Pretty cool.. nice job.. works really well

[@popps2502]

Good video in joyed watching.

[@jasonlloyd3400]

Awesome video and idea.

[@lemix69]

That's actually called a snail cam as it is shaped like a snails shell, I'm not sure, where you got the name Davinci cam, but I've seen these built before for various functions, one of which another person used it to drive their power hammer.

[@douglasarrington8461]

Very nicely done I might have to make me one

[@rudolf-art-videos106]

Hi, I love the design and would like to build one myself. Have you got any plans, drawings for this one to download, free or for a fee?

[@bobbythompson3544]

Ray you just derailed the Orange Blossom Special, Box Car Willie is super pissed, run like hell!

[@БивачокАлександраВикторовича]

Отличная идея. Просто и эффективно. Like

[@christroutman9573]

I would like to build this. Do you have a material list. And what kind of motor and gear reducer are you using?

[@BlackPowderGeek]

Can you share any more information on the spring you ended up using? I am building a similar hammer to (hopefully) dish sheet metal, and I am going to need more force then just the drop of the hammer. Thanks for the video btw.

[@highping1786]

I bet the neighbors love it.

[@tanksouth]

Install some unfaced fiberglass batts between your wall studs. It can be held in place with poultry netting. It will make it way quieter in your shop.

[@RayFromTheHayclan]

Yeah that would be nice.

[@толикчерненко-ь9з]

Братуха, это гениально, молодец классно

[@valvol4388]

толик черненко , Толик , он конечно навряд ли прочитал и понял твой коммент. Но ты сто пудово прав!!

[@ВадимЖуравлев-ъ9в]

Да уж хорошая штучка .И руки свободны ,да и не такая сложная .Можно повторить своими руками и без сварки.

[@nichobarricco5149]

Looks good for altering leaf springs. Maybe turn the base 90 degrees?

[@waterboy8999]

Great job! Maybe a bit taller would save your back. Best wishes from Scotland.

[@mattberg6785]

I think that's pretty sharp. The only negative I see is the height. Looks likes an uncomfortable stoop over time. But all in all that's a great machine. I'm sure you could experiment with heavier springs or hammers.

[@Schrodingers_kid]

Simple,but smart

[@johngrace199]

Brilliant...great job.

[@RickRabjohn]

Hey Hey Ray - I love your hammer - I like how you wrapped the wood cam with steel - very smart. I've added you to my Blacksmith Power Hammer Playlist of Fame providing you full bragging rights :-)) Wish you happy hammering; Booyah!

[@RayFromTheHayclan]

Thanks Rick. Hoping to make some improvements soon. Happy hammering!

[@theusconstitution1776]

Rick Rabjohn I

[@krashunburn]

It will cost a bit of cash, but if you have a testing lab nearby they should be able to do what is called an onsite drop-weight impact test. That will tell you exactly how much force your setup is applying.

[@nickkk420]

Cud always use a scale

[@krashunburn]

@@nickkk420 Depends on how accurate you want to be. Keep in mind that typical scales are not designed to take impacts, much less measure them. Scales that can are owned be testing companies. Refer to my original suggestion.

[@romeotayag1954]

Thanks for the video I’m almost complete in making mine. What type of motor are you using. I put a DC treadmill motor on mine . It’s a 3 hp you thank that will be strong enough? Thank you

[@RayFromTheHayclan]

I'm using a 1hp motor which has been plenty powerful enough.

[@chriswoods3188]

That's just genuine. Great job.

[@billhatcher2984]

If you want to increase the hammering strength go to a junk yard and get a pair of hood hinge springboard of something with a really big hood like a cady or an old truck

[@lostarrow861]

Very impressive, well done!

[@Anon.Emouse]

HEADPHONE USERS - WARNING. Lower your volume at 4:59

[@phillipbywater2546]

As if they will see your comment in time 🤦‍♂️

[@betafishjeremy7454]

The only thing that would make this better is measurements and links to the things you purchased

[@DrewD748]

Just an Idea, what about welding one side of the weight portion if an adjustable dumbbell to the top of the hammer and then add weight as needed.

[@sutiyosowijanarko1854]

GENIUS Thank you teacher.

[@jlgordon96]

This is really cool! Glad i found this video.

[@dadygee]

Lawnmower clutch wheel for the hammer engage? Looks like the one I have under my 1989 lawn tractor :)

[@nickdannunzio7683]

Nice... (you may want to remove all the scrap paper and post it notes from under the hot metal to avoid burning your shop down)

[@williamwaid8549]

do you have a set of plans for this, I would love to try and build one

[@josephaschulze8560]

Nice job

[@ИванВасильев-ж4ы]

Very gud job

[@cbpuzzle]

Just use a fish or luggage pull scale to measure any extension spring tension.

[@MrRogerhalliday]

Great piece of work. Can we have details to build one here in Sri lanka ceylon

[@lemoncola1164]

i would love to make a hammer like this, but i intend to make a heavier hammer that lifts about a foot higher cause i need to move some large chunks of steel

[@markb4106]

Great video. I'm starting to get involved with metal working. I'm 56 with arthritis so it's hard to hammer for a long time and I want to build something very similar to this. Who was the guy you mentioned about making the Davinci cam I would like to get the details. Thanks for your video. Hammer Time😁😁

[@RayFromTheHayclan]

His name is Rick Rabjohn.

[@Rebar77_real]

You could swap in a different cam for planishing instead of running the large cam at high rpms, probably, eh?

[@brucecampbellforpresident1393]

Man that is awesome thanks for sharing ✌️

[@giachohanglocphat7051]

Great, i will do the same, thank you so much, best wishes !

[@Edgunsuk]

excellent but invest in a brush you have smashed your scale back in to your work (uk blacksmith here btw)

[@JacobAHull-nx6rx]

Man..that's awesome

[@MattulaTaylor]

Very nice!