Calibration system and method for determination of relative position of two components in multi-axis motion system
US10155346B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2016 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Jul 6, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/49023
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A system and method for calibrating the gap between a 3D printer extruder nozzle and build platform are disclosed. To calibrate, the build platform is moved laterally in the horizontal plane and the extruder nozzle is moved downward toward the build platform. While moving the nozzle downward, the velocity of the build platform or the power required to move the build platform in the horizontal plane is monitored. A drop in velocity or an increase is power required to move the build platform is detected when the extruder nozzle contacts the build platform due to kinetic friction. The vertical height of the extruder nozzle is then set or calibrated relative to the build platform based on the position of the extruder nozzle when the contact was detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.