Replacement Bed for Cube 2

About: Mechanical engineer, Colorado State University alumni, and member of Alamance Makers Guild.

After shattering the bed of my Cube 2 printer at the Burlington Mini Maker Faire, I looked up the cost of a replacement. To my surprise, it's $100 for a piece of glass with a steel slug glued to it!

So what did I do next? I bought a piece of glass and glued a steel slug to it.

Hopefully this ible can provide guidance to others in the same unfortunate situation.

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Step 1: Materials

  • 0.125" x 5.5" x 5.5" Borosilicate Glass ~ $15
    • 8476K81 on McMaster Carr
  • 0.125" x 1" x 2" Steel ~ $3
    • I used some scrap material, but you can also purchase from McMaster
  • Rear view mirror adhesive ~ $5
    • purchased at Autozone

Total: $23

Step 2: Cut the Metal Slug

Using the dimensions in the attached PDF, cut the steel slug with your preferred tools. I personally had access to a metal shear and a vertical band saw.

After cutting, be sure to round the edges to prevent cutting yourself later.

Step 3: Adhere the Slug

Using the PDF from the previous step, line up the metal slug on the glass.

Make sure the slug is facing the right direction, trace the perimeter with a dry erase marker, and remove the slug.

Now, follow the instructions on the adhesive kit to adhere the slug to the glass. Be sure to work quickly so that the adhesive sets properly.

Step 4: Further Steps

  1. I've tried roughing the surface of the glass to be like the original bed, but have not had great success. I've tried etching and sanding but I think sand blasting would be the best option.
  2. The bed adhesive packaged with my Cube lasted 9 months before failing to hold my prints. Elmers purple school glue has been a great substitute with my new bed.

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    5 Discussions


    3 years ago

    I like to thank you for this.. I got all the parts, just have to glue the steel slug, I tried to go to a metal shop and see if they would make the steel slug for me, but they wanted 60 to 80 dollars, so I said no way.. I went to another place they gave me the metal for free, I just had to shape it.. It was a pain to get it just right.

    But I have the slug shaped just right, and just have to glue it, everything all together cost me about 20 dollars..

    1 reply

    Reply 3 years ago

    That's great to hear! I'm glad this instructable has been helpful to you.


    5 years ago

    You could probably also use a liquid glass etchant in lieu of sand blasting. You can buy it at hobby and craft stores for a few dollars.

    2 replies

    Reply 5 years ago on Introduction

    Hi MrBeta,

    Thanks for the advise. I've tried with some liquid etchant at my work, but it had no effect on the glass. If you know an etchant that works well with borosilicate, I'd love to try something new.


    Reply 5 years ago on Introduction

    I forgot that Borosilicate glass is more difficult to etch so I think you're on the right track with the sand blasting. Best of luck!