Worst PICK AND PLACE Qihe TVM802A
Severe defects continue and conditions worsen. Is the flaw resolved by S/W setting and parameter adjustment?
You have to compare the long and short ones. This is wrong.
It's a real professional to find out before comparing long and short things.
It's made by a company that doesn't even make NC lathe processing accurate. It's not soldered to parts.
If you want to live long, you're deporting this product!
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can the machine placing 0402 capacitors/resistors? do you have any PCB with components on top and bottom?
@Vikramslm
2 жыл бұрын
Nope, 0603 is the minimum (expect to lose 10% parts). 0805 is comfortable.
I have an SMT802a which looks exactly like the TVM802a. I'm having a terrible time trying to figure out how to have it pick from several components in the IC tray. If anyone could be of any help I would greatly appreciate it. The user manual I have is terrible and working with the guy in support doesn't seem to understand me very well.
you seems to be using 504 and 505 nozzle for everything - i'm not sure this is the proper way to do it - for SOIC 505 is reasonable, but not for 1206 - 504 would be more apropriate there; also - the other issue you have is loosing steps for some reason - if you bought this with open loop motors then all you can do is to set movement ramp parameters way down (velocity, jerk control - please check 3d printing related forums for this) - i bought tvm802 some time ago and it was totally useless when it arrived - factory calibration was way off, to the point i had to loosen belts and pulleys and redo it so it would run true. nozzle to camera aligment was also off, so every component was misplaced istead of being placed
@Vikramslm
2 жыл бұрын
Greetings, fellow TVM802B Owner, How do you find replacements for the Vacuum Pumps, Air Solenoids and other "Consumables". Ours are failing and there's no support from the company or their distributors.
@Vikramslm
2 жыл бұрын
@@MultiKumar321 When we purchased the machine way back in 2017, there weren't many options below Juki.
@Vikramslm
2 жыл бұрын
@@MultiKumar321 Yes. The new neoden 9 looks really promising
@Vikramslm
2 жыл бұрын
@@MultiKumar321 Congratulations Bro. Wish you all success 🙌.
does it just install without soldering?
@leealex6922
Жыл бұрын
No, it's working after applying solder paste. The image shows that the Z-axis is not fully operated due to a defective step motor driver, and the chip falls in the air. The cause of the defect in the motor driver board was a defective board that did not properly apply lead to the PCB. Chinese products are not perfect. After replacing the motor driver chip, the whole thing was soldering again, and it operated normally.
Hi!, machine seems to accelerate with time, and loose steps
@leealex6922
2 жыл бұрын
The machine was set up faster and faster. But it doesn't work smoothly. The Stack Point is not right. Feeder Stack height is not correct from No. 1 and 29. So I lowered the Z-axis value of the vertex a lot.
Why so slow😐