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How to Build a Power Hammer: My Power Hammer Plans for a Homemade DaVinci Cam Helve Hammer

December 15, 2019

How to Build a Power Hammer: My Power Hammer Plans for a Homemade Power Hammer DaVinci Cam Helve Hammer Design Quick change sledge hammer for forging dies simple to build cost effective space efficient relatively lightweight and portable variable speed Hammer Designed and built by Roy Adams of Christ Centered Ironworks Approximate cost to build using new materials is $225 USD Plans available at


  • Reply Andrew Willis November 28, 2015 at 12:49 pm

    How effective is it? Can you describe how much material you are able to move in one heat? Is it more than you can do with a hand used hammer? If so would you guess that you can move twice as much material?

  • Reply Ronnie McKee November 28, 2015 at 1:20 pm

    I really like that hammer. I think it is a great design for small home shop hobbyist. Thanks for posting the video, nice job 🙂

  • Reply John Dias November 28, 2015 at 2:43 pm

    Let us know when you have the plans.

  • Reply Brian Mendenhall November 28, 2015 at 5:55 pm

    oh if that isn't a bit of genius…….. thank you. you just changed my life. …….

  • Reply miteeoak November 28, 2015 at 10:17 pm

    Brilliant. I can't wait to see the plans.

  • Reply Roy Adams November 28, 2015 at 10:57 pm

    thank you all for the great comments 🙂
    to answer a couple of questions this hammer will move in its current configuration 3/8" stock efficiently it has a 8lb hammer head . a larger hammer head would move more.
    this is a proof of concept hammer and the plans will very slightly to accomodate a harder swinging hammer head 🙂

  • Reply zues1992 December 1, 2015 at 12:35 pm

    agreed can't wait to see the plan's

  • Reply Cory Morris December 11, 2015 at 6:38 am

    such a great idea

  • Reply Stephen Weaver December 13, 2015 at 8:49 pm

    Thanks for sharing this! I've recently gotten my father's tools, and will need a triphammer!

  • Reply zues1992 December 17, 2015 at 3:27 am

    would really love the plans to it.

  • Reply OrionsAnvil December 22, 2015 at 10:21 pm

    Wow, that's pretty slick!

  • Reply Rick Rabjohn December 28, 2015 at 2:31 am

    Great hammer – can you share what motor your using?

  • Reply Jim & Shirley January 9, 2016 at 4:54 am


  • Reply tinfoilsombrero February 4, 2016 at 3:24 am


  • Reply Destin Gardner February 12, 2016 at 5:45 am

    man I need to make one bad please post video of how it's made

  • Reply mario medina March 3, 2016 at 4:30 am

    this video is amazing, i will make my hammer exactly like yours

  • Reply John Hauserman April 22, 2016 at 7:20 pm

    Dude you are a genius.

  • Reply HappyandAtheist May 24, 2016 at 1:50 am

    ingenious 🙂

  • Reply Steve Sauls May 27, 2016 at 9:08 pm

    Nice!  Now I want to build one!

  • Reply Majin Snake December 24, 2016 at 3:22 am

    Nice work!

  • Reply Eduardo Bonani January 9, 2017 at 3:24 pm

    Simple and perfect!

  • Reply Eduardo Bonani January 9, 2017 at 4:21 pm

    Simple and perfect!

  • Reply kranthi reddy dungala February 8, 2017 at 5:49 pm

    hello sir I am trying to do this project could you please send design calculations of each component & specifications.

  • Reply Robin Negus February 10, 2017 at 1:57 am

    neat concept!

  • Reply artisansportsman February 23, 2017 at 11:11 pm

    I like this little hammer it's simple & it doesn't take up too much space .
    It looks easy to make, thanks for sharing think i will have a go at making one for my garage.

  • Reply EMN Irons March 11, 2017 at 7:29 pm

    so any old high torque drill hooked to a pulley would work?

  • Reply nopethegeek March 16, 2017 at 11:52 am

    this is by far THE best design I've seen for a power hammer yet. its simple, inexpensive, and yet highly effective all at the same time. You have inspired me to construct my own design, building on your concept. Thanks for sharing!! 🙂

  • Reply Alex Mercier March 31, 2017 at 10:23 am

    you realize we no longer need your plans to make this right? just looking at tbe video and how ut works i can already build one and understand how it works xD

  • Reply Donald Carbone April 6, 2017 at 8:19 pm

    Actually that is pretty darn cool

  • Reply Doug Bish May 14, 2017 at 11:30 pm

    LOVE it!

  • Reply RFAM05 May 16, 2017 at 3:34 am

    Love it!

  • Reply Abyss May 24, 2017 at 2:06 am

    what is the rpm of your motor?

  • Reply Robby Mc June 1, 2017 at 5:25 am

    I've watched a dozen of these build a power hammer videos… Yours made me laugh but it's the most practical and my favorite by far I might actually be able to build one of those ?? GOOD JOB!!!

  • Reply Christ Centered Ironworks July 10, 2017 at 11:48 pm

    I gathered up some resources for those of you building this hammer. I've got links to some of the parts I've used below:
    3" and 4" pulley:
    49" V Belt
    The "motor" (high torque drill)
    Sledge Hammer:
    There is a bit more info in the video's description. Make sure you check out my channel for my newest power hammer builds. And as always, I've got cool resources and plans at WWW.BLACKSMITHPDFS.COM !

  • Reply tball 1902 August 23, 2017 at 5:17 pm

    a better why would be to add a bungge cord to the sledge hammer to make it fall heavier

  • Reply Mike Bergman September 21, 2017 at 6:02 am

    This is the coolest idea for a quick build power hammer. You sir, are a crafty man. I like it..

  • Reply ernestusilgrande December 17, 2017 at 8:20 pm

    bravo leonardo

  • Reply farmwork686 Mi February 11, 2018 at 3:31 am

    New videos plz

  • Reply Easy to tips and tricks ect February 21, 2018 at 8:44 pm

    Pretty cool bro keep up the good work and God bless Ken

  • Reply Easy to tips and tricks ect February 21, 2018 at 8:46 pm

    Very cool and simple good job no way like the old way!

  • Reply Grandma Stuffums February 27, 2018 at 3:24 pm

    where can I get those pulleys?

  • Reply Lorne Kelly March 23, 2018 at 5:59 pm

    Thanks for the plans, I followed them and then made a few modifications…

  • Reply Robert Hageman April 10, 2018 at 8:46 am

    Pretty ingenious… looks like theres a lot of stresses going on… the framework shakes and the motor doesnt sound too happy… the cam looks prone to splitting at some point, but its cool for us po folks!

  • Reply Wandering the Wilderness April 20, 2018 at 12:56 am

    I’ve recently started blacksmithing and I’m a Christian as well. Just wanted to say I’m learning a lot from u. Nice vids.

  • Reply Big Dan May 5, 2018 at 2:33 pm

    This isn't the first power hammer of this style that I've seen.. but definitely the least expensive to build considering that most people have more wood lying around than they do metal. Anything is a relief when your swinging arm is done.

  • Reply Tina May 29, 2018 at 1:20 pm

    Roy, this is great. We are a DIY family of crafters, but it never occurred to me that one could build one’s own power hammer.

  • Reply The Ungoliant July 1, 2018 at 7:37 pm

    Well shoot, I guess I know what my next project will be.. 🙂 This is awesome.

  • Reply Theophilus Jedediah October 21, 2018 at 11:30 pm

    For math heads… the ratio for length to width of rectangles of 1.61803 39887 49894 84820 has been considered the most pleasing to the eye. This ratio was named the golden ratio by the Greeks. In the world of mathematics, the numeric value is called "phi", named for the Greek sculptor Phidias. Leonardo d was credited with using it in many of his inventions both functional and failed.

  • Reply Stanley Vo November 6, 2018 at 7:49 pm

    Nice marching…! I will do one like this ….thank you.

  • Reply keegan lantz December 4, 2018 at 8:25 pm

    Fuck yes

  • Reply Matthew Hegstrom January 17, 2019 at 2:39 pm

    Hey, I’m just getting started in blacksmithing, for a hobby possibly more and I’m more interested in making swords and knifes. How do I know what kind of steel to buy?

  • Reply Cristian Ariel February 4, 2019 at 5:34 pm

    Good afternoon. I liked what you did. Can you pass me the measurements? The length of the mass (hammer) the high etc. Thank you very much from Argentina.

  • Reply Joseph Z March 11, 2019 at 3:06 am

    Any thought to counterbalance the opposite side of the cam? It seems that would take some of the side to side wobble out.

  • Reply Wiktor Kowalb November 25, 2019 at 3:45 pm

    класньій молот, и недорогой! а подскажи оборотьі двигателя? а напрямую с двигателя или редуктор? на ручке молота где касается ексцентрик приделай подшипник, а то рукоять перетрет.

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