I am not even sure you get the exact same hardware and software if you buy the YS version
If you buy a chinese version you receive Chinese manual, different translation files, limited warranty, chinese support and finally machine need to stay in China.
For all other countries we are responsible And Yusheng will forward you to SMALLSMT.
The recent demo video is good, showing a lot of closely spaced parts but no fine pitch ics. Would also like to see some statistics on mispicks, drops, and placement errors over say 10000 parts.
I show some fine pitch examples in 3 to 4 weeks after my new machine is calibrated.
The mispicks depends on the nozzle quality and part size and will be compensated by some pick up strategies.
We try to access a part 3 times (adjustable in the basic settings) and if it can't be picked up it's possible to advance the tape to access the next part.
After this fails the machine stops and ask for a fix.
Parts where dropped if not adjustable within the choosen precision ranges. If you increase the precision setting you receive more drops.
If the machine dropped a part on movement you need to decrease the acceleration but normally you don't receive part drops on movement.
Placement errors depend on 6 problems:
1. Fast changing ambient light conditions (Sun light from side) drop the vision alignment precision
2. If you pick up the part outside of the center the part may change position on placement
3. Wrong height settings
4. Z speed too high
5. Paste mask not ok.
6. wrong nozzle size for the part
If you use a well adjusted machine the over all error rate on 10000 components should be 0,05%.
Most of the machine stops will be cause by re reeled components because of different extensions and feeder problems caused by oversized tapes ....