3D Printed Bench Cookies

I recently discovered those helpful things called bench cookies, that can have a lot of different uses for woodworking:

-Raise your workpiece to avoid scratching your work surface while sanding, routing, or sawing

-Raise your workpiece when you use a plunge saw for large wood pieces

As the one sold in different online shops, those bench cookies have a rough surface to have a high friction contact between the cookie and the workplan.

More accessories will come in the future (cones, raisers, etc), at the moment I only designed screwable adapters to use the bench cookies with 20mm holes (like the MFT system) to secure them onto a MFT Table.

The dimensions of the cookies are the following : 70mm (diameter) * 25mm (height)

This is my first Instructables, I am open to any comment that could improve those explanations !

Some of the provided links are affiliated links

For each Bench Cookie you'll need :

-A 3D printer (printed on a Prusa MK3)

-PLA/ABS/PET or whatever you're confortable with. I personally used ABS as I had a spool to finish

-1 M8 nut

-1 M4 nut

-1 M4*10mm flat head screw (also works with countersunk screws)

-Some sand if you want to fill them with something to make them heavier

-Rubber pads (I personally bought those Rubber pads but they are not provided with adhesive). For each face of the Bench cookie you'll need a circle of 32mm diameter

-Super Glue, Contact glue or neoprene glue if you do not have pads with an adhesive face. I used Neoprene glue to finish the one I had but I successfully tested the two others

To 3D print those cookies, you'll need to insert pauses during the print to integrate two nuts (I designed the component with embedded nuts to avoid having multiple parts to assemble:

-1 M4 --> This nut will be used to secure the lid

-1 M8 --> this nut is used to attache accessories to the Bench Cookie.

The first pause needs to be placed at 11mm to insert the M8 nut

The second pause at 17mm to insert the M4 nut

If you dont' want to insert pauses, just stay next to your printer to insert the nuts at the given heights...

For each bench cookie, you will need to print :

- one body

- one cap

Before the assembly, you should cut the rubber pads : each cookie will need two pads

-Use the lid as a template for cutting the external diameter of the rubber pads

- For the bottom pad (close to the M8 nut) cut a circle with a 20mm diameter, or superior. I tried to drill them with a 20mm bit but that was definitely not the best option

-You can fill the Bench cookies with sand for example, to make them heavier. To avoid having sand that goes into the threads, I screwed the M4 screw before filling it with sand.

-Remove the sand on the outer diameter with a brush

-Apply some glue on this diameter

-Put the lid and tighten the M4 screw (used to secure the lid just in case)

-Apply some glue on the pads and glue them (the pad with the 20mm hole goes on the M8 nut side)

-If you printed the MFT adaptor, insert the Hex M8*30 bolt (I used some contact glue to secure the screw)

The assembly is finished, enjoy your freshly built cookies ! I will update this Instructables with accessories in the future