Instructables
Picture of Laser Guided Hammer

It is one of those "Why didn't I think of that" kind of ideas. The delicate simplicity of the small red dot guiding you along is probably the only way to improve on one of the oldest tools of all time.

The idea came to me in a flash while I was working at the Pier 9 workshop in San Francisco. Most of the tools already have laser guides these days. It just seamed strange that the hammer had been left out of having it's own shiny dot helping the user know where the business end of the tool was about to land. Combining the digital precision of a laser with the brute power of a hammer is a natural pairing.

This is a quick, easy, and affordable project which is accessible to all levels of makers.

 
Remove these adsRemove these ads by Signing Up

Step 1: Assemble the tools and the tools

Picture of Assemble the tools and the tools

This project is literally putting one tool inside another tool. To do so we will need some equipment and tools. Here is a list of what you will need to make this project:

- Small key chain laser pointer (try to find one about 1/2" in diameter) also try to find a cheap one, more on that later.

- Rubber mallet

- Drill press

- Clamps

- Ruler and pencil for marking the center of the Mallet.

With all that assembled lets get started.

Step 2: Mark the center and drill out the laser column

Picture of Mark the center and drill out the laser column
IMG_3396.JPG

To get a laser dot exactly where the hammer is going to strike we will need to drill a hole straight down the mallet. In order to do this with accuracy use a ruler to find the center of the hammer. Use a pencil to mark where the center of the face is.

Gather some clamps. Us the clamps to hold the hammer in place on a drill press.

We will start drilling out the hole with a 1/4" drill bit. Be careful not to go all the way through.

Step the drill bit up to 1/2" and just pierce the front of the hammer head so that light comes out.

1-40 of 44Next »
domenic31 month ago

nice idea

Jugfet5 months ago

What next? a digital coat hanger perhaps?

tisaconundrum6 months ago

Does this count for the laser spectrum contest?

Brilliant.
I'd have set the laser into the front of the hammer, and then tried to figure out how to keep it from moving when whacked. The nonintuitive solution to drill in from the back of the hammer, with a point hole for the dot, is inspired.

And the result is entertaining and funny.

Thank you for sharing. I needed it today.

Mayam786 months ago

In lieu of crafting such an, *ahem*, "device" I'd like to offer a piece of advice told me many moons yore. It's not a joke - literally this is the secret to pinpoint accuracy with a hammer. :

1. Affix your gaze directly and exclusively on the head of the nail or whatever your target may be.

2. Swing away Mr. Sosa!

That's it! Sounds so simple it can't be true but I guarantee, observe this one rule and watch your finger splint budget virtually disappear! I must admit though, I am a big fan of attaching lasers to anything when and wherever possible. Anyone remember 'What's-His-Name's' putter from Caddyshack 2? Pure WIN in it's rawest form right there :).

Mayam78 Mayam786 months ago

Oh sorry, forgot to include my rough idea for a re-conception of the author's device...

So, given the "look directly at the target" rule (which again, it's not meant as sarcasm or anything, simple as it sounds it absolutely works). If a "head-lamp" type laser pointer which could accurately approximate the user's exact line of sight it could allow for finer and more pinpoint accuracy and, with some practice, could essentially function similar to laser sighting on projectile weapons. As example, I like to call myself a competent archer. Hand me a basic long bow without sighting and I can hit an 8" pie plate at about 20-30 yards fairly reliably. Give me a compound with modern sighting and an afternoon and I can stick a half dozen arrows through a 2" bulls-eye at 40+ yards.

For applications like finish carpentry (cabinets, eaves, door framing, et cetera) such a device could find a market.

karlpinturr6 months ago

Should've posted this 10 days earlier...

CurtR karlpinturr6 months ago

Judging by the posts following yours, nobody made the connection with 1 April. Spot on! With such a large hammer head how hard can it be to hit that dog?

Michael_oz6 months ago

Needs two line lasers, 90degree apart, crossing in the middle. Then you don't have a hole where you hit your target...

toddglidden6 months ago

I see how it would work well for the use in the photo (holding the hammer stationary above the object to be hammered). But if you raise the hammer in an arc and actually start swinging it, the laser would only appear milliseconds before impact, not leaving enough time to make adjustments. But other than that, besides the whole self-destruction thing, great project!

MattDoesThat6 months ago

Someone call Jeremy Clarkson. He is the man to market this.

mlee896 months ago

what's next? laser guided dining fork?

skinzy mlee896 months ago

or toothbrush?

three_jeeps6 months ago

now all you need to do is spend hours improving hand-eye coordination so that you can quickly position the laser dot on the nail while the hammer is traveling at the equivalent of linear 1 FPS....um...this is a joke project right?!?!?!

capnbob6 months ago

Maybe this would have worked out better with a laser guided drill to make the hole. I never imagined that hammering was so daunting to begin with.

joshikins6 months ago

Sorry but this just doesn't work. And even if it did there would be no real point do doing it. I don't see how a laser guide would help while swinging something fast... like a hammer, or in this case a mallet. Honestly if you need something to guide your swing you have no buisness swinging it in the first place.

lbrewer426 months ago

OK, how about making a cylindrical, spring-cushioned housing inside the mallet's head to eliminate the impact's effect of the laser? Then drill out a cylindrical block of Lexan to use as the head. Make extra faces of Lexan (surely they will scratch and blur he beam after awhile) that attach to mounts on the hammers face. This would also allow for access to replace batteries in the laser (which, BTW, it might be better to rig a switch on the handle of the laser by drilling holes through the Lexan to access the laser from the outside).

Better yet, have Scotty beam us down a hammer head out of transparent aluminum (hardened of course). But by now he also may have been able to come up with transparent stainless steel.

sumbo6 months ago

I always put my lasers on the nail.so I wont miss it when I hit it with the hammer.

caitlinsdad6 months ago

No need for a laser to guide the hammer. Just put your thumb over the spot you need to nail. The hammer will automatically find its way there.

Yep, that never fails. lol

Ulsha caitlinsdad6 months ago

Murphy's law #7

hehe yup things like that just happen on their own ...

Brilliant! :)

Highly innovative concept! I had a good laugh.

finton6 months ago

Um, nice concept but given that it doesn't actually work, how did it get featured?

hotfarts6 months ago
I'm so glad that people have left caustic remarks about this. To the author: - Mnnnng! Duhhh! Also, I salute you.
dmajor36 months ago
would love to have this, it would be perfect for whack a rat in your attic.
Ulsha6 months ago

I really hope you don't stand directly over the mallet when you swing or you're due for a trip to the hospital when that comes flying back out.

caitlinsdad Ulsha6 months ago

Newton's law #1

rpotts26 months ago
its a rubber mallet. I dont think this is intended for a steel head. can you imagine how long it would take to drill out? good idea, but accuracy on a rubber mallet isnt a big deal. looks fun though.
rishichavda6 months ago

Just a slight problem, when hitting a nail with this hammer (especially quite hard) would the nail not damage the laser part?

Stan1y6 months ago

Problem that I see is the nice flat face of your mallet right where you want what you are hittting to strike has a hole in it

momsnacher6 months ago
thats not a hammer.
Kiteman6 months ago

I have this image of laser-pointer shrapnel shooting out of the other end of the mallet and embedding in anything in the way - ceilings, faces...

vincent75206 months ago

I don't mean to be rude, but if you try to hit your target the way you handle your hammer as shown in image before last success is not likely to happen, with or without laser !…

This in a way could be quite beneficial as you won't have to get a new laser at each blow …

It's just a matter of what one prefers.

Mielameri6 months ago
Simple, brilliant, AWESOME. Thanks for this!
Echucai6 months ago
vaya PARIDA más inútil la virgen!!
wood wizard6 months ago
Precise, brute force. Good idea
thiagohersan6 months ago

It doesn't seem like your ruler has any lasers. Maybe that's why your laser pointer keeps breaking...

Nighteye6 months ago

Honestly if you need a laser to aim with something that's in your hand; you shouldn't even be holding it.

1-40 of 44Next »