Housing for computer-numerically-controlled machine

Patent metadata

Field	Value
Publication number	US-11433477-B2
Application number	US-201715823499-A
Country	US
Kind code	B2
Filing date	Nov 27, 2017
Priority date	Nov 25, 2016
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

Abstract

A computer-numerically-controlled machine can include a light source and a housing. The light source can be configured to deliver electromagnetic energy to at least one location on a material at least partially disposed within the computer-numerically-controlled machine. The housing can include at least one side part surrounding an interior space and the at least one location on the material. The housing can include a structural material defining at least a portion of the interior space. The housing can further include a protective material protecting the side part. The protective material can reduce a permeability of the side part to the electromagnetic radiation relative to the structural material alone.

First claim

What is claimed is:

1. A computer-numerically-controlled machine comprising:
a laser configured to deliver laser energy to at least one location on a material within an interior space of the computer-numerically-controlled machine; and
a housing comprising an openable barrier and at least one side part that form an enclosure when the openable barrier is in a closed position, the enclosure surrounding the interior space of the computer-numerically-controlled machine, the housing comprising:
a structural material forming the at least one side part of the housing, wherein at most a first non-zero amount of laser energy from the laser is capable of being reflected to a first area on an inside surface of the structural material, and wherein at most a second non-zero amount of laser energy from the laser is capable of being reflected to a second area on the inside surface of the structural material; and
a protective material applied to the first area and not the second area based on (i) the first non-zero amount of laser energy being sufficient to penetrate the structural material at the first area and (ii) the second non-zero amount of laser energy being insufficient to penetrate the structural material at the second area.

2. The computer-numerically-controlled machine of claim 1 , wherein the housing further comprises a bottom part of the computer-numerically-controlled machine, wherein the structural material additionally forms the bottom part, and wherein the protective material is further applied to the bottom part, thereby reducing a permeability of the bottom part to electromagnetic radiation relative to the structural material alone.

3. The computer-numerically-controlled machine of claim 2 , wherein the protective material applied to the bottom part of the computer-numerically-controlled machine is disposed on a third area on the inside surface of the structural material.

4. The computer-numerically-controlled machine of claim 1 , wherein the protective material comprises at least one of a ceramic particle layer, a metallic particle layer, or a plastic layer that is more resistant to electromagnetic radiation than the structural material.

5. The computer-numerically-controlled machine of claim 1 , wherein the protective material comprises a metallic layer.

6. The computer-numerically-controlled machine of claim 1 , wherein the protective material comprises a ceramic layer.

7. The computer-numerically-controlled machine of claim 1 , wherein the protective material comprises plastic.

8. The computer-numerically-controlled machine of claim 1 , wherein the protective material is detachable or semi-detachable.

9. The computer-numerically-controlled machine of claim 1 , wherein the protective material is more resistant to electromagnetic radiation than the structural material.

10. The computer-numerically-controlled machine of claim 1 , wherein the laser is capable of one or more of discoloring, ablating, or vaporizing the material.

11. The computer-numerically-controlled machine of claim 1 , wherein the computer-numerically-controlled machine is capable of one or more of hardening, creating a phase transition, or modifying one or more physical characteristics of the material.

12. The computer-numerically-controlled machine of claim 1 , wherein the laser comprises a carbon dioxide laser, and the laser energy comprises infrared radiation.

13. The computer-numerically-controlled machine of claim 1 , wherein the at least one side part encloses at least half of the interior space of the housing.

14. The computer-numerically-controlled machine of claim 1 , wherein the protective material is thinner than the structural material to which it is applied.

15. The computer-numerically-controlled machine of claim 1 , wherein the protective material comprises an adhesive-backed metallic foil.

16. The computer-numerically-controlled machine of claim 1 , wherein the protective material comprises a metal layer having a thickness between 0.5 and 2.5 thousandths of an inch.

17. The computer-numerically-controlled machine of claim 1 , further comprising a focusing lens through which the laser energy passes before striking the material.

18. The computer-numerically-controlled machine of claim 17 , wherein the first non-zero amount of laser energy capable of being reflected to the first area on the inside surface of the structural material is based on (i) a first path length between the focusing lens and the first area and (ii) a first maximum power density of the laser energy from the laser capable of being delivered over the first path length as the laser energy spreads out with increasing distance from the focusing lens; and
wherein the second non-zero amount of laser energy capable of being reflected to the second area on the inside surface of the structural material is based on (i) a second path length between the focusing lens and the second area and (ii) a second maximum power density of the laser energy from the laser capable of being delivered over the second path length as the laser energy spreads out with increasing distance from the focusing lens.

19. The computer-numerically-controlled machine of claim 1 , wherein the protective material is diffusively reflective.

20. A method for manufacturing a computer-numerically-controlled machine comprising a laser configured to deliver laser energy to at least one location on a material within an interior space of the computer-numerically-controlled machine, the method comprising:
defining, with a structural material, at least a portion of a side part of a housing of the computer-numerically-controlled machine, wherein at most a first non-zero amount of laser energy from the laser is capable of being reflected to a first area on an inside surface of the structural material, and wherein at most a second non-zero amount of laser energy from the laser is capable of being reflected to a second area on the inside surface of the structural material;
applying a protective material to the first area and not the second area based on (i) the first non-zero amount of laser energy being sufficient to penetrate the structural material at the first area and (ii) the second non-zero amount of laser energy being insufficient to penetrate the structural material at the second area; and
forming the housing comprising the side part and an openable barrier that form an enclosure when the openable barrier is in a closed position, the enclosure surrounding the interior space of the computer-numerically-controlled machine, the side part including the structural material and the protective material.

Assignees

• Glowforge Inc

Inventors

• Shapiro Daniel
• Gosselin Mark
• Wright Anthony

Classifications

• B23K26/127 Primary

  in an enclosure · CPC title

• B32B37/02

  characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations · CPC title

• B32B37/144

  using layers with different mechanical or chemical conditions or properties, e.g. layers with different thermal shrinkage, layers under tension during bonding (constructional features for tensioning B32B38/1825) · CPC title

• B23K26/0648

  comprising lenses · CPC title

• B23K26/38

  by boring or cutting · CPC title