delucagiovanni forum

Ian from Dangerous Prototypes went over to China to acquire a Qinsi
QS-5100 ( http://tinyurl.com/bd2wthj ). Qinsi doesn't answer my emails.
(They may not understand English.) Here's what Ian says about T-962s:

The T-962, commonly found on eBay for around $300, is slightly
larger than the Qinsi QS-5100. Both the Qinsi and the T-962 use
only two infrared heating tubes. Two seem barely enough for the
smaller work area of the QS-5100, so we chose it over the T-962.
The larger Qinsi with 4 tubes and greater vertical separation
between tubes and boards probably heats more evenly. Given
unlimited money and space we'd choose a four tube oven instead.

Some mention (and others, and others) that various T-962s exhaust
bad fumes, timers are off by double or more (5 minutes becomes 12
minutes), menus are buggy, buttons are not debounced, or that the
heat doesn't ramp up fast enough. These were all nagging concerns
we had buying this oven, but we have not run into a single one of
these issues.

Thomas VonDerHaar says:
February 5, 2016 at 8:37 am

I bought a Qs-5100 from Aliexpress. It did not work properly. It would not pass any of the preheat stages of any of the heat curves. It just stalls a few degrees before the hold temperature. The seller sent a replacement controller which was a defective reworked part that fell apart upon unpacking (the large heat sink had not been properly attached and under its own weight separated the heater transistor switch from the main controller board.) I had to go into arbitration with Aliexpress to get a partial refund. I then contacted Qinsi. They agreed to send a new controller if I shipped the old one back and paid shipping cost. I shipped them the controller with the broken transistor, Two months later they said that it never arrived. I then shipped the original controller(with tracking.) I received the first controller a sent one week later from the Chinese postal service indicating Qinsi was given notice to pickup the package but after apparently 2 months of Qinsi not claiming it from China’s post office, they sent it back to me. The second one has been there for over two months. I have EMS verification that it was delivered. Qinsi sent me two terse messages in that two month period. One simply said “Tom，Courier I have received”. The other said they tested the controller and found nothing wrong with it. I sent them data and two videos showing the first stage stall. My data also showed that controller non-volatile memory holding the predefined heat curve parameters were corrupt. I have sent many E-Mails since then asking them to honor their word and send the new controller. Qinsi will not return my E-Mail no matter how many I send them. I even sent them to two other Qinsi E-Mail address found on their web site in China. I finally sent them E-Mail telling them if they didn’t return me a new working controller or my cost buying and shipping parts to them, I would report them to the proper authorities in China and the US. I then reviewed all my notes and videos on the problem with the machine. I asked both the seller and Qinsi from the first time I sent them problem E-MAILS to verify that they sent me a 110v machine. I even sent a picture of the label on the back of the machine to Qinsi. The seller told me they verified they sent a 110V machine. Qinsi never apparently verified the machines proper voltage configuration, because I measure the heating element resistance, (the two tubes in parallel measured about 77ohms), and that indicates the heaters are configured for 220V based on this machines 600W rating. I also sent them this information without any returned E-Mail.

The Shenzhen Qinsi Science & Technology Co.,Ltd, company is despicable! If they had followed up on my first inquiry asking them if they sent the proper 110V machine, the last six months since my purchase of this machine wouldn’t have been such a nightmare. Their failure to recognize their own mistakes and try to work with me to resolve the issue should be a warning to anyone thinking of buying any equipment produced by them. Their machines I believe are also sold under the name SMT MAX. To this day I have not heard from these thieves. I have lost hundreds of dollars, not to mention tens of hours of my time, trusting Qinsi.

Don’t get burnt by Qinsi.

Just4Fun wrote:il T962 si trova sotto i 200 euri...

Just4Fun wrote:I bought a Qs-5100 from Aliexpress

The T-962 and the QS-5100
clearly have some common ancestry,
but the QS-5100 appears to be a T-962
with most of the serious shortcomings
cleaned up

legacy wrote:QS-5100 >> T-962

legacy wrote:TSOP 48pin
44 SO (un po' meglio)

scommetto poi che hanno sotto
entrambe una goccia di resina

Code: Select all

.. metti che l'utOnto medio
si carica una App-fuffa che ad un certo punto
impazzisce e decide di sbloccare la flash
e di scriverci sopra a caso

Just4Fun wrote:strano che io sappia la colla si usava
in tecnologia mista con la saldature ad onda

Just4Fun wrote:ma che per caso la sk in questione
la produce una "nota" ditta coreana…?