a5:filament-sensor
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a5:filament-sensor [2018/02/13 06:37] – created pinchies | a5:filament-sensor [2018/03/08 07:22] – [Filament sensor pins] samuelpinches | ||
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- | ===== A5/A3S filament Sensor ===== | + | ===== A5/A3S filament Sensor |
- | ===Problem:=== | + | ====TL;DR==== |
- | The filament sensor on these printers is often plugged in wrongly into the front LCD. This causes a loud continuous beeping sound when you try to print. The printer is thinking filament has run out, and is preventing printing from proceeding. | + | |
- | ===Solution:=== | + | **[[https:// |
- | Unplug | + | {{youtube> |
+ | ==== Filament sensor pins ==== | ||
+ | The pins for the filament sensor belong to the 6-pin header pins near the centre | ||
- | The correct way to plug in the connector is shown in the image below. | + | This issue has been resolved by JGAurora by using hot glue to both insulate the other pins, and to hold the connector in place correctly. |
- | {{ : | + | ====Problem: |
+ | When you try to print, the print may stop (or may fail to start at all), and instead the printer will make a loud beeping sound. | ||
+ | |||
+ | |||
+ | ==== Diagnosis: ==== | ||
+ | The printer is thinking that the filament has run out, and it is waiting for you to reload the filament before proceeding. | ||
+ | |||
+ | However, this function can be triggered by mistake when there is still filament remaining. This typically may occur via one of two ways: | ||
+ | - If the filament sensor is plugged into the wrong pins. | ||
+ | - If the connector is touching other pins. | ||
+ | |||
+ | Checking the sensor is plugged into the right pins is easy: the connector plugs into the block of six pins near the centre on the back of the LCD screen. | ||
+ | |||
+ | The other way this problem can be triggered, is if the connector is touching the other pins. | ||
+ | |||
+ | The connector that JGAurora has used are called JST-XH connectors. These connector have both pin sockets and side contacts. **If these side contacts touch the neighbouring pins, this can also trigger the problem. ** | ||
+ | {{ : | ||
+ | |||
+ | |||
+ | ====Solution: | ||
+ | **Edit: DaHai has since done a very clear [[https:// | ||
+ | |||
+ | |||
+ | A simple solution is just to unplug the two wire cable sticking out of the LCD module! | ||
+ | However, if you want to use this feature, you can do this simple trick. Turning the connect 180 degrees, will make the metal side contacts face away from the other column of pins. Note that the JST connector they are using has three sockets, but only two are used. You need to make sure that the two wires are still connecting to the same two pins, but in this case we are effectively reversing the polarity. This is not a problem – the sensor is a simple mechanical switch, so it does not matter which way electricity flows. | ||
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+ | If you wish to use this filament run-out feature reliably, you will either need to replace | ||
+ | |||
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+ | The way the plug comes installed from the factory | ||
+ | |||
+ | {{ : | ||
+ | {{ : | ||
+ | (Top Image Credit: Markus IngK - MCK, Bottom Image Credit: [[https:// |
a5/filament-sensor.txt · Last modified: 2020/12/25 02:13 by 127.0.0.1