Najlepsze oferty na Płyta ochronna baterii,Kamera IP

zapytał Lindsay na 2020-05-05 03:21:00

francy79 boh, non so

2022-02-06 03:30:15 Pomocny

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Płytka PCB BMS ochrony 4S 40A Li-ion Lithium Battery 18650 Charger z balancem do wiertarki 14,8V 16,8V modułu ogniw Lipo

US$5.74 US$13.99

Q: What does "(comes with recovery function-AUTO Recovery)" actually mean?

zapytał Lindsay na 2020-05-05 03:23:38

Ntbanis with recovery function-AUTO Recovery function.

2020-05-13 03:59:46 Pomocny (1)

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Eachine 32bits F3 Brushed Flight Control Board oparty na SP RACING F3 EVO dla Micro FPV Frame

US$10.99

Q: Why are all motor outputs connected straight to the battery positive terminal? It's straight DC - where is the PWM output? It seems every output is shorted to 8V!

zapytał Lindsay na 2018-02-23 09:39:50

BG454816574 Motors are controlling over negative channel. The reason is the loss is way lower in negative channel over positive one, (rgate,npn). At least on my version, which is makes sense over positive channel control.

2021-10-12 01:17:52 Pomocny

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ESCAM QF007 720P 1MP WiFi Kamera IP Wizja nocna Pan Tilt Wsparcie Wykrywanie ruchu Karta TF 64G

US$27.59 US$28.99

Q: Can it email pictures on alarm?

zapytał Lindsay na 2018-06-24 02:46:42

etsi yes

2021-10-11 09:48:03 Pomocny

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Lindsay And what did you expect? A PS5? You paid a cheap price,you got cheap goods.

thehellboy 24/08/2020

the box was messy and splattered. the console works normal but looks cheap.

SUPII 3.0 Cal ekran LCD klawisze L/R 8-bitowe wbudowane 500 gier klasycznych 1020mAh akumulator przenośna mini przenośna konsola do gier

US$18.89 US$21.99

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ESCAM QF001 720P IR Night Vision IR-Cut 1.0Mrga WiFi Kamera IP Pan Tilt Security Camera Wsparcie 32G TF Card

US$32.99 US$44.52

Q: Can it email pictures on alarm?

zapytał Lindsay na 2018-06-24 02:47:34

pedromadeira yes it can do it, if you supply a ftp to send the pictures, or upload to your YouTube.

2020-09-14 04:15:42 Pomocny

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Lindsay 20/07/2020

I have been using these for a few months now. No problems. An excellent set of collets for CNC hobbyists that will allow you to use any bit in your router/spindle (provided it fits ER11 collets of course)

Machifit 15szt. Zestaw napinaczy sprężynowych ER11 o średnicach 1mm do 7mm, uchwytu narzędziowego do frezarek i tokarek CNC

US$19.54 US$29.99

0

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Chłodzony powietrzem silnik wrzeciona CNC o mocy 2,2 kW ER20 24000 obr./min 400 Hz 4 łożyska Frezowanie CNC

US$273.99 US$328.99

Q: Why is 6 times the price? I came here because of an ad saying it was 15% off.

zapytał Lindsay na 2020-04-23 09:47:55

Mari94 It is on promotion now.

2020-05-06 04:56:18 Pomocny

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Stojak wiertarski stołowy Raitool™ DC 24V 100W Mini wiertarka stołowa Elektryczna Uchwyt wiertarski 1,5-10mm

US$250.62 US$260.99

Q: How many watts is it? I know it says 100W, but how many is it really?

zapytał Lindsay na 2020-04-05 08:31:17

Haven 100W

2020-04-30 07:07:34 Pomocny (1)

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MUSTOOL X3 W pełni inteligentny miernik szczękowy True RMS 6000 liczników Automatyczna identyfikacja cyfrowy miernik wielofunkcyjny z NCV ℃/℉ Rezystor / Dioda / Test włączania/wyłączania / Test kondensatora

US$20.99 US$49.99

Q: Does it measure DC with the clamp

zapytał Chattonlad na 2019-08-23 05:42:01

Lindsay It tries to measure DC amps with the clamp, but the measurement is unreliable and always different. As for DC voltage, that is measured with the probes.

2020-04-26 04:37:29 Pomocny

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Lindsay One of the wires is earth, connected to the metal body, find out which one that is using a multimeter. Then the other three wires are your motor wires. If you connect them wrongly to your VFD all that will happen is your motor will spin the wrong way. Just make sure you know how to program your VFD. Banggood, would it kill you to pay someone to write proper English instructions for all the crap you sell?

Palko 03/06/2019

So far so good! The motor has arrived, but how to go furtehr? I expected I would get at least a short description about pinout, what to connect to what, how to operate this device. I also bought a 1 phase input 3 phase output inverter, but I do not now how to connect the spindle to it. Please help!!!

Chłodzony powietrzem silnik wrzeciona CNC o mocy 2,2 kW ER20 24000 obr./min 400 Hz 4 łożyska Frezowanie CNC

US$273.99 US$328.99

5

Komentarze (1)

Lindsay PS The motor does seem underpowered and with 6mm endmills cutting wood I only cut at depths of 1mm with a max federate of 400mm per min. It gets too hot and I think it is meant to be used with the mount which acts as a heat sink. If you put it on a home cnc you will need to manage the heat somehow. In my case light work seems to have melted the fan on the shaft. Awesome. Also the fan is a hazard and though I thought I had secured the wires out of the way, they ended up wrapping around the fan and stalling the motor. Shutting it off in 5 seconds seems to have saved the motor, maybe..

Lindsay 29/02/2020

I think this is a great buy, hence the 5 stars for Value and Appearance. (So Bang Good - please don't ask me to give it a better score) The quality I have rated lower - even though it is cheap - because it doesn't feel very safe. Be careful :) The electronics consist of a fuse, 4 massive diodes and a big 330uF 400Vcap, after that it's a bunch of smaller components and ICs not possible to identify. The output of this metal box is not 100V DC at all. It is a typical cheap power supply producing a very rough looking 350V square wave with frequency around 20KHz and a duty cycle from 0 to 33%. So I guess it's 100V if you are willing to take the average over time... but that's not DC, so why say it is? There is no earth connection and exposed high voltages everywhere so I would flag this as electrically unsafe. The voltages on the potentiometer terminals are also over 200V! So basically you need to put this in a plastic box with air vents so no one can touch it and die. I was hoping there'd be a way to replace the POT and wire the wiper to a D to A converter and control the speed electronically, but I'm not game to try with the voltages I measured. Yes, the bearings are quiet at low speed, although there is a plastic cylinder with a shoddy fan on the end which is pretty unbalanced and causes it to vibrate when the duty cycle is turned up all the way to 33%. The unit comes with screw terminals with basic labels but no other information except a sticker on the metal box that says "don't tear open outfit" aha alright then... The aluminium block that comes with 4 bolts but no nuts and it has no threads either. I give it 3 stars for quality - what does anyone expect for this price?

Machifit Uchwyt ER11 do wrzeciona CNC o mocy 500W z uchwytami o średnicy 52 mm oraz regulatorem prędkości zasilaniem

US$73.99 US$99.99

0

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Lindsay 29/02/2020

I think this is a great buy, hence the 5 stars for Value and Appearance. (So Bang Good - please don't ask me to give it a better score) The quality I have rated lower - even though it is cheap - because it doesn't feel very safe. Be careful :) The electronics consist of a fuse, 4 massive diodes and a big 330uF 400Vcap, after that it's a bunch of smaller components and ICs not possible to identify. The output of this metal box is not 100V DC at all. It is a typical cheap power supply producing a very rough looking 350V square wave with frequency around 20KHz and a duty cycle from 0 to 33%. So I guess it's 100V if you are willing to take the average over time... but that's not DC, so why say it is? There is no earth connection and exposed high voltages everywhere so I would flag this as electrically unsafe. The voltages on the potentiometer terminals are also over 200V! So basically you need to put this in a plastic box with air vents so no one can touch it and die. I was hoping there'd be a way to replace the POT and wire the wiper to a D to A converter and control the speed electronically, but I'm not game to try with the voltages I measured. Yes, the bearings are quiet at low speed, although there is a plastic cylinder with a shoddy fan on the end which is pretty unbalanced and causes it to vibrate when the duty cycle is turned up all the way to 33%. The unit comes with screw terminals with basic labels but no other information except a sticker on the metal box that says "don't tear open outfit" aha alright then... The aluminium block that comes with 4 bolts but no nuts and it has no threads either. I give it 3 stars for quality - what does anyone expect for this price?

Machifit Uchwyt ER11 do wrzeciona CNC o mocy 500W z uchwytami o średnicy 52 mm oraz regulatorem prędkości zasilaniem

US$73.99 US$99.99

0

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Lindsay 19/02/2020

The unit looks good, with stainless steel main body in two pieces and a silver plastic computer with LCD. Repeatability is good, indicating electronics and encoding is working well. You can slide it quickly and it will not miss count - but this is par for the course these days and very cheaply available. Resolution at 10 microns is astonishing to me, but again par for the course these days. When I took it out of the box I could instantly tell two things: the steel was good but the machining poor. There are razor sharp corners everywhere which arguably are desirable for accuracy, but I believe avoidable in manufacturing, whilst still allowing for superb accuracy. The slide is tight whilst there is torsional play in the jaws - a result of space between the two pieces. The other telling feature is the subtle use of a screw at the back, used to hold the depth probe to the main body. The thumb wheel also feels nasty, with excessive play and it slips easily on the ruler. Whilst these gripes are picky, (what do you expect for AU$17 ? ) I think this is what buyers really want to know. Verdict: An amazing piece of ubiquitous tech which looks the part and performs acceptably in my brief tests. Quality and feel however, isn’t great. The price of AU$17 is good value, but this is not something a professional machinist (or I for that matter) will cherish.

Wyswietlacz LCD Stal nierdzewna Cyfrowy Suwmiarka 150mm 6 Calow Ułamek / MM / Cal Wysoka precyzja Stal nierdzewna LCD Suwmiarka

US$17.99 US$29.99

0

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Lindsay 13/12/2018

The product pictured here is a 4 wire stepper motor with a long cable. What arrived was a stepper with 6 pins and no cable and no indication of connection. Also the metal around the socket (not shown in picture because it's different to the picture) was chipped, indicating it had been dropped on a hard floor. To make matters worse, Bang-Good support has been a sham. They force you to enter details before you can talk to anyone, and then you're lucky if someone talks to you. When I did get through the person said they would "notify colleagues" which has lead to zero action. Not good enough in my opinion.

Nema17 59Ncm 2A 1.8°4-lead 48mm Silnik krokowy do drukarki 3D CNC

US$16.16 US$20.99

9

Komentarze (2)

Lindsay Add to that: repeatability is about /- 30 microns or 3 hundredths of a mm.After receiving a metal splinter, I went over the unimportant edges with a file to remove burrs and sharpness. It has been very good for CNC work.

Lindsay 19/02/2020

The unit looks good, with stainless steel main body in two pieces and a silver plastic computer with LCD. Repeatability is good, indicating electronics and encoding is working well. You can slide it quickly and it will not miss count - but this is par for the course these days and very cheaply available. Resolution at 10 microns is astonishing to me, but again par for the course these days. When I took it out of the box I could instantly tell two things: the steel was good but the machining poor. There are razor sharp corners everywhere which arguably are desirable for accuracy, but I believe avoidable in manufacturing, whilst still allowing for superb accuracy. The slide is tight whilst there is torsional play in the jaws - a result of space between the two pieces. The other telling feature is the subtle use of a screw at the back, used to hold the depth probe to the main body. The thumb wheel also feels nasty, with excessive play and it slips easily on the ruler. Whilst these gripes are picky, (what do you expect for AU$17 ? ) I think this is what buyers really want to know. Verdict: An amazing piece of ubiquitous tech which looks the part and performs acceptably in my brief tests. Quality and feel however, isn’t great. The price of AU$17 is good value, but this is not something a professional machinist (or I for that matter) will cherish.

Wyswietlacz LCD Stal nierdzewna Cyfrowy Suwmiarka 150mm 6 Calow Ułamek / MM / Cal Wysoka precyzja Stal nierdzewna LCD Suwmiarka

US$17.99 US$29.99

0

Komentarze (2)

Lindsay Resolved now. But I recommend they make the process for resolving issues easier.

Lindsay 13/12/2018

The product pictured here is a 4 wire stepper motor with a long cable. What arrived was a stepper with 6 pins and no cable and no indication of connection. Also the metal around the socket (not shown in picture because it's different to the picture) was chipped, indicating it had been dropped on a hard floor. To make matters worse, Bang-Good support has been a sham. They force you to enter details before you can talk to anyone, and then you're lucky if someone talks to you. When I did get through the person said they would "notify colleagues" which has lead to zero action. Not good enough in my opinion.

Nema17 59Ncm 2A 1.8°4-lead 48mm Silnik krokowy do drukarki 3D CNC

US$16.16 US$20.99

9

Komentarze (2)

Prosty analizator widma D6 ze źródłem śledzenia TG V2.02 Proste narzędzie do analizy źródeł częstotliwości RF

US$70.61 US$84.73

Q: it was *****US in Polska store - why is it twice the price in this store????

zapytał Lindsay na 2020-02-08 04:44:40

Carbylam maybe you can use the "contact us" to contact the banggood customer service team.

2020-02-22 01:00:57 Pomocny

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Silnik wrzeciona DC 24-100 V 500 W ER11 CNC Router chłodzony powietrzem Silnik wrzeciona grawera

US$60.61 US$72.09

Q: The spindle extension is 45mm long - is there a shorter one?

zapytał Lindsay na 2020-02-13 02:10:47

Ateliosis This is 38mm: https://www.banggood.com/ER11A-8mm-Motor-Shaft-Holder-Extension-Rod-Collet-Chuck-Holder-CNC-Tool-p-1354919.html?rmmds=search&cur_warehouse=CN

2020-02-13 04:26:56 Pomocny

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Lindsay Why not provide the wiring diagram for everyone on your website?

BG101051525 20/09/2018

I have no idea how to wire this unit, no wiring diagram. You have to send me a wiring diagram.