pirlouwi
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pirlouwi 07/11/2019
12 days between buying and delivering, this is very impressive. Thank you Banggood
NEJE Upgraded DK-8-KZ 1500mW Blue Violet Laser Engraving Machine Mini Desktop DIY Engraver Protective Panel
US$59.75 US$130.99
0
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pirlouwi Same remark for me. Should we pull-down the TTL input pin?BTW, I suppose that TTL level is 5V, and so I need to use a voltage divider to transform the 12V PWM output coming out of my Ramps board?

Shorai 29/01/2018
The laser was received in good working order. WEAR SAFETY GLASSES AT ALL TIMES!!!! This is an OEM product, and the safety concerns noted below need to be addressed when handling the device and in the final product. I hope you know what you are doing when you purchase such a high power laser. A few minor points dropped the overall rating 1) There in no cable or connector supplied for the TTL input. (Nice to have). I may not be able to get the exact connector locally. 2) I would prefer to have different types of connectors for the different connections so that they cannot be accidentally interchanged. 3) On power up with open circuit TTL input signal, the laser came on at full power and burned a hole in its packaging within a second. 4) There was no manual or usage instruction supplied with the unit to inform of the operating requirements or danger. 5) With the input shorted, the unit powers up correctly. Pressing the low power button on the power supply results in a BRIEF, HIGH POWER FLASH followed by a low power continuous light. This may present a risk. 6) Microprocessor pins used to drive the TTL input directly will start in high impedance state and may result in a dangerous full power laser output until the pin is grounded. An external circuit is needed to manage any danger or negative effect on the work piece. To give an idea of the power of the device, a 5mm diameter hole was burned in the packaging within my reaction time. The unit had not been focused on the target. This unit will blind or burn you in an instant. Do not use in the presence of children or animals. Provide adequate safety shields and interlocks. Take care with reflected and dispersed beams by enclosing and shielding the work space properly. On the positive side, this is exactly what you bought the unit to do, right?
LA03-3500 450nm 3.5W Blue Laser Module TTL Modulation Fan Heat Sink for EleksMaker DIY Engraver
US$69.61 US$122.99
10
Comments (2)
pirlouwi 16/02/2018
pas assez solide bout capacitif se détache très facilement. partie écriture pas solide non plus. je ne recommande pas
Shelleypen G9-2 2 in 1 Gel Pen Capacitive Stylus Pen for iPad Smartphone Tablet
US$1.79 US$3.41
0
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Comments (1)
pirlouwi 26/01/2018
I have bought this bt joystick to control VR games movements like Tuscany HD for example. Unfortunately it seems to be uncompatible with it. in place of controlling mouvements in the vr game it launch my mp3 player app :-(
VR PARK Universal bluetooth Remote Controller Wireless Virtual Reality Gamepad Mouse Mini Joystick
US$6.47 US$12.94
0
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Comments (1)
pirlouwi 26/01/2018
Very good sound rendering considering the price. The two plastic blocks in front of each ears are a little bit thick, but acceptable. The sound has good bass, sufficient for classical music.
Bakeey™ Knitted Hat Wireless bluetooth Earphone Music Hat Smart Cap Headset Headphone with Mic
US$4.49 US$10.99
0
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pirlouwi 02/01/2018
It can replace a Dremel, for light jobs
HILDA JD3324C DC 3.6V Mini Electric Variable Speed Cordless Drill 110-220V Grinder Rotary Tool
US$11.99 US$18.95
0
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Comments (0)
pirlouwi 02/01/2018
ok
DANIU 34x23cm Heat Resistant Silicone Pad Desk Mat Maintenance Platform BGA Soldering Repair Station
US$6.97 US$24.99
0
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Comments (0)
pirlouwi 02/01/2018
ok
Excellway® Ham Radio Receiver 100KHz-1.7GHz Full Band UV RTL-SDR USB Tuner Receiver
US$28.99 US$38.99
0
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Comments (0)

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