by Mr_MegaTronic, published

THWACK by Mr_MegaTronic Nov 13, 2012

Featured Thing!

36 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps



THWACK by Mr_MegaTronic is licensed under the Creative Commons - Attribution license.

Liked By

View All

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag

Thing Statistics

62523Views 12949Downloads Found in Hand Tools


My new YouTube Channel: https://www.youtube.com/channel/UCnnw56J_TeOsF4M_F5pPPJQ

Hit things in style with THWACK! A 3D-printed plastic hammer.

This lean, mean, ball-peen is ready for your general clobbering needs! And while it won't drive a galvanized nail into a pressure-treated fence-post, it will dutifully bludgeon interior nails, bang tight-fitting objects together, annoy individuals with experimental jazz percussion and acceptably intimidate others when held menacingly.


V2 - The peen has facets now to promote better printing at smaller scales and in general.

sudo THWACK - a request from Vik, this is useful for executing "bash" commands.

If you like what I do and want to help me do more, please consider supporting me on my Patreon page! http://www.patreon.com/ErikJDurwoodII Thanks!


Scale to desired size (if you want) and print!

I strongly recommend at least eight shells and 100% in-fill.

More from Hand Tools

view more

All Apps

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Print through a distributed network of 3D printing enthusiasts from across the US, at a fraction of the cost of the competitors. We want to change the world for the better through technology, an...

App Info Launch App

Treatstock is an online platform that offers decentralized manufacturing services such as 3D printing and CNC machining for clients all over the world. We offer free and instant access to comparati...

App Info Launch App

3D print your favourite design with NinjaPrototype, a professional 3D manufacture with consistent quality and speed.

App Info Launch App

The sudo version is priceless. Made one for a close friend. Thank you for posting this!


Tried printing with 8 shells and only 65% infill. Seemed solid enough, but my Thwack broke were the handle and the hammer head connect.

You can't print the hammer standing up. It must be laying on its side. Like wood, a 3d print is strongest along it's "grain.". In this case the layers.

You could have printed it solid and it still would have snapped. It is a good looking print though! :)

Just realized that and was coming back to delete my comment, but I'll leave it for others who think they are smart too. :)

How is this best printed? sorry if i'm reviving this.

Your thwack was apparently so powerful that it burned out my stepper motor. ;(


will be the first thing I (re)print when its back in operating condition.

I was told by someone at a Maker Faire that he uses the THWACK to knock his freshly-printed (cooled) parts off the glass plate of his 3D printer. He believes it's nicer on the Kapton tape than other methods. He mentioned it to me by name.

What's the best orientation for getting the best print? And are supports recommended? I don't have a heated bed, so I guess I'll use a raft when I attempt to print this.

how do you recomend you set this up in makerware
i tried using the supports from makerware and meshmixer but the hammer handle always ends up warping and getting caught by the second extruder. does anyone have a way to fix this or any reccomendations?

I saw this after making an e-Nable prosthetic hand. The guy in the video used it instead of a hammer.

My first print failed, because I had warping on the sides and my print didn't stick. I did 3.2mm shells (8x 0.4mm nozzle), 100% infill, and touching baseplate supports (for the middle).
My 2nd try: I put in a raft and to prevent warping (raft) and that worked :-)

Very cool! I am curious what video did you see it in? Is there a link?

I'm glad you enjoy the design!

unix nerds of the world unit! Thanks for that. sudo indeed.

Me no speaky IPT, but how hard is it to make a derivative with  "sudo" in lower case terminal font on it? If a pain, let me know and I'll do it with more brutal graphics tools :)

I like the way you think.

I can't think of a more appropriate tool to execute a "bash" command than a hammer.  And the divine authority of "sudo" only makes it more "impacting."I'll upload the file this weekend.

Cool, I have a rubber "sudo" mallet but I feel the need for a test object to perfect my IMPLA recipe on and this looks just perfect!

And done.  The "system" font that comes with windows isn't contoured for path-tracing in programs like Autodesk Inventor and Adobe Illustrator so I dove deep in to my 80,000 font collection to find a raster-inspired terminal font.  I hope it works for you!

the design is as good as your sense of humor... I love it!

Nice, I love the idea. What software did you use to render the images? It looks very clean and professional.

Thanks!  I used Autodesk 3D Stuio MAX to render the images  with the V-Ray rendering engine.

I like the arrow at the top, telling the user that either end can be struck.  ... for those as "dumb as a hammer." ;-)

Make a cavity for a very large threaded bolt and you've got yourself a real hammer. You could even have the threaded end protrude from the "peen" side and grind it round.

That is a good idea!  For those who don't want to bother with bolts or grinding, maybe I'll also make one that accepts a coin or something as a striking surface...


My Dad asked me to make a hammer with a spot for a quarter so it could be called a "Quarter Pounder".  

Looks like the perfect hammer for my bump keys!!!

Thanks Eric :-)

Is this printable?

I'm printing one right now to check it out.  As long as your printer can ooze a bridge well enough, I don't see an issue.

I'll let you know!