Differences

This shows you the differences between two versions of the page.

--- a5:faq [2018/05/10 22:33] – Added noisy extruder motor problem mds
+++ a5:faq [2019/02/25 13:02] – [Problem: The printer will not move, or will only move in one direction.] samuelpinches
@@ Line 10: / Line 10: @@
 ----
-===Problem: I cannot install JGCreat from the USB.===
+====Problem: I cannot install JGCreat from the USB.====
 **Solutions:**
@@ Line 18: / Line 18: @@
 -----
-===Problem: My prints will not stick to the bed.===
+====Problem: My prints will not stick to the bed.====
 **Solutions:**
@@ Line 28: / Line 28: @@
 ----
-===Problem: The printer will not move, or will only move in one direction.===
+====Problem: The printer will not move, or will only move in one direction.====
 **Solutions:**
   * You must "Home" all the printer axis, before trying to move.
   * You may also want to check you have [[stepper-drivers|tuned your stepper drivers]].
+  * Check for errors in [[/pronterface|pronterface]].
 ----
-===Problem: Layer Shifting===
+====Problem: Layer Shifting====
 {{ :a5:img_7125.jpg?nolink&300|}}
   * My prints are suffering layer-shifting during printing.
@@ Line 43: / Line 44: @@
 -----
-===Problem: Heating Problems with Nozzle or Heated Bed===
+====Problem: Underextrusion, gaps in prints ====
+  * I’m seeing small gaps throughout my prints, and not just on the first layer.{{:a5:underextrusion.jpg?direct&200|}}
+ **Solutions:**
+  * Underextrusion is typically a problem of the printer struggling to push filament. This can happen for several reasons.
+  * Too much friction in long Bowden tube: try lubricating the filament with a small amount of canola oil.
+  * Extruder cannot grip the filement: check that the gears in the extruder are not clogged with filament.
+  * Motor not receiving enough power: [[A5:stepper-drivers|check the VREF on the extruder stepper driver]]
+  * Check you have set the correct filament width in your slicer, and correct nozzle width too.
+-----
+====Problem: Heating Problems with Nozzle or Heated Bed====
   * My printer is showing strange temperature readings.
   * My Bed or Nozzle is not heating up.
@@ Line 49: / Line 60: @@
   * Check that all cable plugs are firmly and fully inserted.
   * Still not working? [[:not-heating|Check this page for in-depth troubleshooting.]]
+  * Faulty temperature readings? Check [[a5:faulty-temperature-readings|this page too]].
+  * Bed not heating? [[a5:drag-chain-cable-damage|Check if your bed cable is damaged inside the drag chain.]]
 ----
-===Problem: Noisy Printer===
+====Problem: Noisy Printer====
   * My printer is making a juddering noise when I do a move function.
   * Z Axis become stuck occasionally.
@@ Line 63: / Line 76: @@
   * Check the [[https://www.youtube.com/watch?v=CcAmZqb-ZEE|X-axis is trammed]] parallel to the main printer frame.
---------
+------------
+====Problem: Printer keeps rebooting when ever I try to heat the bed (or perhaps start a print).====
-===Problem: Noisy Extruder Motor ===
+  * You may notice the printer restarts when starting a print, or perhaps when you preheat the bed
+**Solutions:**
+This problem can be caused by TWO different causes:
+  * If your printer has a drag chain, please see [[A5:drag-chain-cable-damage|this article for details]].
+  * If your printer has clips on the bed, these clips may be scratching the bed heating element (underside of the bed) and causing a short circuit. Remove the clips, and place two layers of electrical tape on the underside of the bed. Then place the clips back on.
+------------
+====Problem: Gap between nozzle and bed, can't level bed high enough.====
+{{ :a5:a5-adjust-z-endstop.jpg?200|}}
+  * When you try to home the z axis, the nozzle is still too far away from the bed.
+  * You may find that you cannot loosen the bed screws far enough
+**Solutions:**
+  * Rather than raising the bed up higher, you can actually lower the position of the Z-endstop so that the nozzle will settle in a slightly lower position.
+  * Inside the right column is a small white block with a switch on it. The switch is attached to the white block with two small screws. The white block is attached to the frame of the printer with two larger screws.
+  * By undoing the two larger screws, you should be able to adjust the vertical home position of the nozzle, to allow you to be able to properly calibrate your bed.
+  * There are two small holes in the black metal frame opposite those two screws. These holes will give you easier access  to adjust these screws.
+  * Click on the photo to enlarge.
+--------
+====Problem: Noisy Extruder Motor ====
   * The extruder motor is making a noise at intervals
   * The extruder motor judders
@@ Line 74: / Line 114: @@
 --------
-===Problem: Beeping printer or Randomly stopping prints ===
+====Problem: Beeping printer or Randomly stopping prints ====
   * My printer is making a beeping sound at the start of the print, and then it stops.
   * My printer is aborting prints randomly, but is not frozen.
@@ Line 80: / Line 120: @@
 **Solutions:**
   * [[a5:filament-sensor|Check the filament sensor wire is correctly and fully inserted.]]
-  * Check the filament sensor itself! On earlier models, the sensing tip can be worn down rapidly by filament, and after this has happened, you will need to replace or unplug the sensor to stop this error from occurring.
+  * Check the filament sensor itself! On earlier models, the sensing tip can be worn down rapidly by filament, and after this has happened, you will need to replace or simply unplug the sensor to stop this error from occurring.
 -----
-===Problem: Randomly stopping prints and unresponsive LCD ===
+====Problem: Randomly stopping prints and unresponsive LCD ====
 **Solution:**
   * Follow the troubleshooting on the [[:not-heating|heating problems page, and follow the instructions to check for errors using pronterface]].
 -----
-===Problem: My printer is crashing the head or bed, it is not stopping at the end.===
+====Problem: My printer is crashing the head or bed, it is not stopping at the end.====
 **Solutions:**
@@ Line 96: / Line 136: @@
 -----
-===Problem: The printer moves fine, but will not extrude plastic, or load filament===
+====Problem: The printer moves fine, but will not extrude plastic, or load filament====
 **Solution:** The extruder motor is disabled when the nozzle is cold. You must preheat the nozzle to above 190C before extruding or loading filament.
 -----
-===Problem: My prints are squished in the corner of the print bed===
+====Problem: My prints are squished in the corner of the print bed====
 **Solution:** [[:printing-coordinates|Disable the option for "centre at 0,0", in the machine settings in JGCreat or Cura
@@ Line 107: / Line 147: @@
 -----
-===Problem: My prints are very weak and very porous, there are lots of little holes in prints.===
+====Problem: My prints are very weak and very porous, there are lots of little holes in prints.====
-**Solution:** Check you have selected 1.75mm filament width in JGCreat/Cura.
+**Solution:** Check you have selected 1.75mm filament width in JGCreat/Cura, under the printer Machine Settings.
 -----
-===Problem: My printer extruder a small amount of material before every print.===
+====Problem: My printer extruder a small amount of material before every print.====
 **Solution:** This is deliberate and helps to prime the nozzle before printing. See [[:start-and-end-gcode|this page on start and ending GCode]] for how infomation on how to tweak and control this process.
 -----
-===Problem: My LCD is not turning on after flashing firmware, or I see white squares on the LCD.===
+====Problem: My LCD is not turning on after flashing firmware, or I see white squares on the LCD.====
 **Solution:** [[https://jgaurorawiki.com/a5/lcd-problem|See here.]]
+-----
+====Problem: After updating my LCD firmware, I can't see any files!====
+{{ :a5:mksnofiles.jpg?500|}}
+**Solution:**
+  * If you plug in a USB and you don't see any files, check the settings page on the LCD. There is an option for the LCD to look for files on SD card or on USB sticks.
+  * Check you have plugged in the internal USB cable!
+  * Check the USB stick is formatted correctly (FAT32).

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