With the rapid development of humanoid robots, intelligent prosthetics, and automated assembly, the demand for micro multi‑dimensional force sensors continues to grow.
In the field of precision manufacturing, the dimensional accuracy of micron‑scale parts places extremely stringent requirements on manufacturing processes, and single‑part production models cannot meet the throughput needed for large‑scale applications.
In April 2026, it was learned that BLT’s metal additive manufacturing technology has achieved new progress in the mass production capability of micro multi‑dimensional force sensors.
01 Single batch of 972 parts on a full build plate – unlocking batch manufacturing of micro parts
Take Hualichuang Science’s Photon Finger‑B micro multi‑dimensional force sensor as an example. The external dimensions of a single Photon Finger‑B sensor are only 8.5 mm × 8.5 mm × 6.91 mm – a typical micron‑scale part. Using BLT’s large‑format, high‑precision printing equipment and process optimization, the number of parts produced in a single full‑batch build has been significantly increased from a few dozen in the past to 972 parts, with high consistency maintained among all parts. This lays a solid process foundation for batch applications.
The as‑printed surface roughness of the parts reaches Ra 2‑3, and the forming accuracy can be controlled to within 0.05 mm, meeting the tight tolerance requirements for critical feature dimensions of micro sensors.
02 Stable batch supply for the Photon Finger series, with thousands of parts delivered cumulatively
Hualichuang Science’s Photon Finger series of sensors provide real, stable, accurate, and linear force perception, supporting tasks ranging from delicate object grasping to heavy‑load interactions. To meet these high‑performance requirements, the physical structure of the sensor itself must have high strength, low weight, and high consistency. To date, BLT has delivered several thousand sensors of models including Photon Finger‑B, Photon Finger‑S, and Photon Finger Max using metal 3D printing processes, providing reliable manufacturing support.
Metal additive manufacturing technology is moving from prototype production to true mass production. Especially in the field of micro precision parts, its advantages – high precision, high consistency, high material utilization, and short process chains – are being fully realized. BLT will continue to provide more diverse and efficient batch production solutions for micro precision sensors and other related fields.
