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--- a5:hot-end [2018/02/14 01:18] – pinchies
+++ a5:hot-end [2020/12/25 02:13] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
-===== Hot End Parts and Maintenance =====
+====== Hot End Parts and Maintenance ======
-The bowden coupler used on the hot end is a M8 threaded coupler, to hold the 4mm bowden tube. You can find these on ebay by searching for the keywords "PC4 M8 pneumatic". **Note: The thread required is a 1mm thread pitch ("fine thread M8") NOT the 1.25mm thread.** Example of correct item to buy (no endorsement): [[https://www.ebay.com/itm/322228296398|ebay link]]
-The nozzle is a standard M6 thread nozzle, as commonly used in many printers. You can buy nozzles from many places, provided they are an m6 thread. These includes [[http://e3d-online.com|e3d V6]]-compatible nozzles, or mk8-compatible nozzles.
+====Bowden Coupler ("Pneumatic coupler")=====
+The bowden coupler used on the hot end is a M8 threaded coupler, to hold the 4mm bowden tube. Since these are very hard to find perfect replacements for, I am actually selling these myself, shipping worldwide, either from Amazon USA, Australia, or from Hong Kong.
-You can buy some high quality nozzles from places like:
+{{tablelayout?colwidth="180px,180px,-"}}
-  * [[https://e3d-online.com/nozzles-for-3d-printer|e3d]]
+^ Item                                                                                                                                                                                                                                                                                                                                                                                                                                                                                ^ Image                           ^ Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            ^
-  * [[https://www.filastruder.com/collections/e3d-spare-parts-and-accessories|filastruder]]
+| [[https://www.amazon.com/gp/product/B07GPNCPZ8/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B07GPNCPZ8&linkCode=as2&tag=samuelpinches-20&linkId=f96f2a2141258b73224c16d635f08de4|{{::buyamazon.png?180}}]] [[https://sams-3d-printer-parts.myshopify.com/cart/12979160875075:1?channel=buy_button|{{:shop_hk.png?180}}]] [[https://sams-3d-printer-parts.myshopify.com/cart/18030549008451:1?channel=buy_button|{{:shop_au.png?180}}]]                                 | {{::a5:bowden-connector-pack.jpg?240&nolink}}  | **Spare Bowden Connectors for JGAurora A5, A5X, A5S & A3S**: This is the rather fragile connector that holds the PTFE tubing to the extruder and the hot end. The thread is very rare, so I have actually decided to try to sell these myself! This is a pack of 3 connectors. There are options to buy on amazon USA, from my store in hong kong, or from my store in australia. Limited stock - once they are sold out, I may not restock them. This is just an experiment. |
+ You can also try find these on ebay by searching for the keywords "PC4 M8 pneumatic". **Note: The thread required is a 1mm thread pitch ("fine thread M8") NOT the 1.25mm thread.** Example of correct item to buy (no endorsement): [[https://www.ebay.com/itm/322228296398|ebay link]]
+{{:a5:bowdencoupler.jpg?direct&400|}}
+Photo credit: [[https://www.facebook.com/groups/857364187778691/permalink/905827212932388/|Jarek Ostaszewski via Facebook]]
+====Nozzle====
+{{:a5:nozzle.jpg?200|}}
+**The nozzle is a standard "E3D V6" compatible nozzle**. Do not try to use MK10 nozzles, they may not fit. MK8 nozzle may fit. You can buy cheap nozzles from many places, such as eBay or Aliexpress.
+You can buy some high quality nozzles from other places like:
+  * [[https://e3d-online.com/nozzles-for-3d-printer|E3D]]
+  * [[https://store.micro-swiss.com|MicroSwiss]]
+  * [[https://www.filastruder.com/collections/e3d-spare-parts-and-accessories|Filastruder]]
+==== Changing the Nozzle ====
+If your nozzle becomes damaged or clogged, or if you would like to change the extrusion diameter, it can be replaced. There are two ways to change the nozzle:
+  - You can remove the heater block, and then remove the nozzle tip from the heater block. JGAurora has a video how to remove the heater block [[https://www.youtube.com/watch?v=QJRVVCgu4K8|here]].
+  - If you are just changing the nozzle, you may find it easier to remove the nozzle from the heater block without removing it from the printer, using a 7mm socket wrench. However: it is very important that the heater block is firmly held with vice grips while unscrewing, to prevent damaging the hot end heat-break throat. The heat break is thin and requires care to avoid damaging it, so it may be wise  to perform the disassembly first. For this process, the nozzle is a little easier to remove from the heater block when it is hot and at temperature, but it is much safer to perform a full disassembly and remove the nozzle when it is cold.
 [MORE INFO TODO...]

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