# Breaks glass on pierce almost every time

**URL:** https://community.wazer.com/t/breaks-glass-on-pierce-almost-every-time/907
**Category:** Help & Support
**Created:** [February 8, 2024, 8:31pm UTC](https://community.wazer.com/t/breaks-glass-on-pierce-almost-every-time/907 "2024-02-08T20:31:58Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![Alex](https://yyz1.discourse-cdn.com/flex027/user_avatar/community.wazer.com/alex/32/14_2.png) [@Alex](https://community.wazer.com/u/Alex)
#### Post date: [February 9, 2024, 8:42pm UTC](https://community.wazer.com/t/breaks-glass-on-pierce-almost-every-time/907/2 "2024-02-09T20:42:56Z")

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Hi @JasonMarshall thanks for joining the community forum and sharing your concern!

We can work around some of the glass cracking issues by processing glass with the following two things:

- placing thin (rubber sliver around the perimeter of the pane of glass) so that the 1-2mm of bed movement that happens during a cut or the bowing doesn’t result in a fracture.
- placing rubber washers under the head of the fixturing screws to give compliance and not allow a piece of abrasive to create a pressure point on the glass

The following items have been tested in-house on multiple glass sheets and have had great success in order to produce glass cut-outs without too much concern for the bed warping.

- Plastic Fasteners [here](https://www.mcmaster.com/90295A422) (100pcs for $10)
- Rubber material for placing under glass around perimeter to ensure no stress spots (like bowed, uneven cutting bed). Cut some 1/2"-1" wide strips from [this](https://www.mcmaster.com/3727T24) material and place it under the edges of the glass as it makes fastening a lot less stress-inducing
- For washers these seem to be working better for us on really fragile things like thin glass: Mcmaster-Carr # 90130A013

There are even some community made 3D printed washers and other recommendations found in this post! ([Link](https://community.wazer.com/t/hold-downs-for-glass-cutting/533))

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