3D Printed Hammer

A few weeks ago I sent away a CAD model of a jewellers hammer head to Shapeways.  I got the model in the post on on Tuesday of this week.  The hammer head cost just over £24 to print.  I was able to design it the way I wanted it to look and personalised it with my hallmark.

 I was very happy with the finished result of the print.  Each of the faces of the hammer show the layers of the build and require to be sanded and polished.  I have started to sand the flat side if the head which has been quite easy, although takes much longer than other metals.  I am yet to start cleaning up the domed side.  I feel this might be a little more tricky to get perfect.
 After getting very excited about my hammer arriving and picking it up from the local shop I went straight to the park to find a suitable handle.  I picked up a few sticks off the ground that looked roughly the right size and took them back to my flat.  One of the sticks was very weak and snapped.  The other I tested for strength before starting to work with the wood.
 I used my 3D printed chizel to strip and carve the stick.  This is the first time that I have really got to test my chizel.  It worked really well.   It both striped the bark with ease and carved really smooth and accurately.


At the end of the handle I marked with a pen where the wood needed to be removed to fit the head.  I carved and then filed the oval to size.

    I have spend about a day working on the handle so far.  I have been sanding the wood to try and achieve a high polish.

I still have a little more work to do to get the hammer perfect.  I need to make the connection at the top fit better and carve down the top of the shank a little to make it look more like it flows into the head.  I am going to finish the handle by polishing it with Danish oil every day for the next week.  Once I have done this I will attach to head permanently.

Hammers and Mallets

Over the last few months I have been thinking a lot about the tools that I need and the ways in which I can innovatively use the 3D printing process whilst not spending more money than I would to just buy a tool.  I have gone through quite a few different ideas and developed my tooling to where I feel happy to now start testing prototypes.

mallet1

The mallet handle progressed from just directly 3D printing a mallet to breaking it down and looking at each part.  The first idea, was to CNC mill a multifunctional handle which could be used by screwing on and off mallet heads which could be printed or milled from different materials such as wood or hard resin.

I designed a handle which had a nice form and would have looked great in wood.  Before the chance came to mill this I had developed the idea further, which I was glad for.  I decided that I could go even further with the design of the tool and develop it specifically for my own use.  I took clay imprints of my handprints as I would be holding certain tools.  I then 3D scanned these to develop into handles for my tools.

mallet3

I have also been developing various hammers in CAD and testing the cost of them to 3D print against the cost to buy from reputable jewellery suppliers.  The average cost of a jewellers hammer is around £15-£30 depending on the use.  There are some more expensive hammers around £60-£80 with changeable heads.

hammerhead

I kept developing and changing my hammer to make it affordable to print.  I managed to get the cost down to £24.02 to be printed in steel.  One advantage to 3D printing this was that I was able to customise the hammer head with my hallmark.  I will make a separate handle for this hammer to the mallet as it is much smaller.  I may either carve one in wood using my 3D printed chisel or CNC mill another handle with my handprint engrained.

hammerhead.4