File Handles

This week I printed off six file handles for my 3D printed tool box.  I had previously been using corks from old wine bottles.  I drilled holes into the prints and chemically bonded the file into the handles.


    I was fairly happy with the look of the final pieces however white is not the most practical colour for the workshop!  I drilled through the side of one of them an realised I should have printed them with the holes in.

The biggest disappointment came when I tested the half round file and realised that the handles need to work both ways up.  I am there for going to go back to the drawing board and make a newer and more comfortable version.

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

 

3D Printed Crochet Hook

For most of my life I have had a real adversion to making anything in textiles or fabric.  Today I got over that fear and decided that I should lean in order to be able to make the fabric items for my house.  I started by looking up YouTube videos on how to crochet.  I then made a crochet hook in Rhino and printed it from my home M3D.  I printed using the highest quality settings and it took 2 hours to print.


First attempt at crochet from para cord.

I managed to sort out the problems I was having with my printer changing where it was building on the bed mid build.  This was down to the filament catching and not unraveling properly while printing.


First piece, half made.


Second sample.

The crocheting took a few attempts and unraveling before I got the hang of it.  I was worried about the hook not being strong enough  however it held up throughout the day’s work.  I printed the hook at around 4mm thickness.  The tool was easy to use, however the part the finger should grip was a little low and so I need to develop the handle of the design to make it a little more comfortable.


3D printed crochet hook.

One of the other problems with using the hook straight off the machine is the support structure left on the handle.  When removing the support it left small spikes of plastic that weren’t comfortable on the hand.  I could either file these away or print on a machine that builds from the base rather that supports.


Underside of crochet hook showing rogue support material.