How to fast correct the rotation of special component during SMT programming


During SMT programming, process engineers usually need to manually adjust the rotation of some special components. The process is time-consuming and easy to omit some components, leading to quality risks. How to cope with such situation?

In this article, we will show a software solution to this situation. VayoPro-SMT Expert, an smart SMT programming software, provides a fast solution to coping with such situation.

Generally, during surface mounting, footprint 1 of component corresponds to pad 1, while for some special components as below, the component footprint 1 needs to be placed onto pad 2, then engineer has to manually adjust the rotation offset.

Using VayoPro-SMT Expert to program SMT machine, users could input the angle compensation of special components into database in advance. Later in programming process, these stored rotation offset could be download in batch for use.

The operating procedure is as below, first to set the rotation offset on the Part Data Editor interface, then save the data to system library.

Later during SMT programming, click “Load data from system lib”, the software would automatically match and download the rotation offset of special components.

Now, the rotation offset setting is completed.

Below is the comparison before and after downloading. After downloading, the software would automatically set the rotation offset, and the mounting angle of component has met the requirements.


Overview of VayoPro-SMT Expert

SMT Expert is an essential SMT programming software to convert traditional manual programming approach into an intelligent process. With the CAD/Gerber/BOM data, the software could intelligently assign /create part data and correct part mounting angle/polarity, which has made up for the shortage of machine software. With the intelligent accelerator approach, the software could help greatly improve the efficiency of offline programming and inline fine-tuning. By implementing SMT Expert solution, the programming cycle could be shortened to 0.5~8 hours and the programming capacity of each programming group could be increased from 3~5 products to 10~15 products.


VayoPro-SMT Expert solution advantage:

1.  Reduce the business risk (customer complaint, rework, order loss, etc.) caused by polarity error;

2.  Reduce off-line programming and in-line debugging time;

3.  Increase NPI capability and accelerate prototyping or trial-production;

4.  Simplify programming complexity and human resource management;

5.  Promote intelligent level and decrease workload.


About Vayo Technology

Vayo Technology is a global provider of intelligent NPI solution for PCB/PCBA manufacturing industry. Founded in early 2005 by a group of technical expert from electronic manufacturing industry, Vayo Technology has been dedicated to delivering high-quality and comprehensive NPI solutions to our OEM / EMS clients. With 17+ years’ effort and devotion to NPI/DFT/DFA/CAM software solutions for electronics industry, Vayo Technology’s NPI solution like 3D DFM/DFA analysis, DFX execution system, stencil know-how digitalization, DFT / testability & DFT strategy analysis, SMT specialized CAM tool, visual aids work instruction, board view & fast query, Gerber view & conversion,… has gained worldwide recognition among the electronic industry.

Since its establishment, Vayo Technology valued much the investment in the technology research & development and has gained 30+ authorized invention patents as well as 40+ software copyrights. Over the past 17 years, Vayo technology has been focused on customer needs and devoted to offering intelligent tool to ease the complexity of people’s work. So far, Vayo Technology has been recognized by 500+ customers from 20+ countries worldwide. We are proud to announce Vayo’s NPI solution has been selected by Flex / Venture / Jabil/ Sanmina / IMI / Benchmark / OSI / Katek / Paramit / Intel / GE / Keysight / Intuitive / Bosch and so on.

Through our efforts, Vayo Technology has been striving to become a trusted partner with the customer we serve and hoping to work together towards the goal of intelligent manufacturing and industry 4.0.

Wanna learn more details of Vayo’s solution, please visit or contact us via email:


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