Gregory W Herman

US Patent:

20210034033, Feb 4, 2021

Filed:

Sep 18, 2017

Appl. No.:

16/646292

Inventors:

- Broadview IL, US
Gregory A. HERMAN - Elk Grove Village IL, US
Bradley PADGET - Huntley IL, US

International Classification:

G05B 19/406

Abstract:

A method for ensuring safety critical functionality for a laser engraver includes obtaining a command from a laser motor controller; obtaining sensor data from a plurality of sensors, the sensor data corresponding to an operating status of various components of the laser engraver; determining a functioning status for each component; and as a result of determining the functioning status for all of the components, enabling supply of power to a laser, where the method is performed by a safety controller that is embodied in hardware completely separate from hardware in which the laser motor controller is embodied. One example required functioning status is that a power button has been selected twice in quick succession.

US Patent:

20190030818, Jan 31, 2019

Filed:

Jul 27, 2017

Appl. No.:

15/661464

Inventors:

- Broadview IL, US
Gregory A. Herman - Elk Grove Village IL, US

International Classification:

B29C 64/393
B33Y 10/00
B33Y 50/02
B29C 64/118
B33Y 30/00
B29C 64/209

Abstract:

A system and method of controlling a 3D printer includes a processor obtaining from a sensor respective sensor values for each of a plurality of distances between a nozzle of the 3D printer and a build plate of the 3D printer, which sensor values each characterizes a characteristic of deposition of filament from the nozzle and onto the build plate at the respective distances to which the sensor values correspond; identifying, based on the obtained sensor values, a maximum and/or minimum value of the characteristic; and setting, based on the identified maximum and/or minimum, an initial gap between the nozzle and the build plate at which to deposit a first layer of an object to be synthesized.

US Patent:

20170371317, Dec 28, 2017

Filed:

Jun 28, 2016

Appl. No.:

15/195456

Inventors:

- Broadview IL, US
Daniel John Blythe - Palatine IL, US
Gregory Andrew Herman - Elk Grove Village IL, US
Brittany Nichole Hopper - Chicago IL, US

International Classification:

G05B 19/4099
B33Y 30/00
B33Y 40/00
B33Y 50/02

Abstract:

An adjustable level 3-D printing platform includes a platform, three support posts, and an adjusting component by which heights of the three support posts are adjustable. The bottom of the build platform includes at least one socket to engage with a ball end of one of the three support posts, thereby enabling two point leveling. The adjusting component is configured to simultaneously adjust a height of the at least three support posts using a first arm and a second arm, each connected to the build platform at respective pivot points and configured to apply respective clamping forces to the support posts. The printing platform further includes at least one sensor leveling system that deploys a probe, measures a relative probe state, and compares the measurement to a predetermined value. During the leveling processes, the 3-D printer is configured to provide sensory feedback.