You could have the hotend and its fan rotated 90 degrees to fit a bigger fan in front. It can also reduce the side profile for you to fit more toolheads.
@@SlowEngineering True, it all comes down to trade offs. Assuming the whole point of your toolchanger is mainly to use different materials, you can reduce the volumetric space taken by each tool by incorporating part cooling into the tool carriage, similar to the pitstop designs by mihaidesigns, although I wouldn't recommend a 5015 fan for it, it makes the whole carriage bulky and heavy. A remote cooling solution is more ideal, like CPAP or even Berd Air (I think you'll find Berd Air to be a little more compact).
I think you have the insight to run a compact solution. I thought to separate the part cooling from the printhead before. But then I realized I needed to swap the tool heads without crashing the cooling ducts. This makes the swapping harder, so I suspended it. An arm for tool changers is making the entire system more complicated. I planned to build the system in the enclosure. On the other hand, I saw the Berd-Air you mentioned. It is indeed a solution for part cooling. But how about the pump's lifetime and how accurate control cooling is for particular layers or features?
@@SlowEngineering I'm not actually quite sure what the lifetime of the pump is, it's one of the least documented cooling solutions as it came right before everybody jumped on the CPAP bandwagon. I do have one in my possession, and will be testing it out for myself in terms of cooling performance and lifetime sometime in the near future. As far as notable people who have documented their Berd Air use on YT, I can really only point to @Advanced 3d Printing and possibly MirageC (although he quickly upgraded to CPAP afaik) if you'd like asking them or looking to their videos for an indication of cooling control. In my opinion it can be a lot better than regular blower fans due to the weight savings and higher pressured air, but has little volume of air flow (I find CPAP to be best for all around cooling). Otherwise finding other people who have actually used Berd Air through other means are probably few and far between. Perhaps depending on the space of the toolchanger, you may be able to fit auxiliary fans if you find Berd Air to be subpar, I know I definitely need to design my own for my bed-slinger due to toolhead space constraints.
I agree that the CPAP concept is the best for all-around cooling. Just need to deal with the inlet and let the enclosure have a similar temperature. I'll try a different design to see how it will be. Thank you for your suggestions and detailed explanations.
![[Tool changer] Other ideas for tool head design?](http://i.ytimg.com/vi/LxlAdK2txTQ/mqdefault.jpg)
![[Tool changer] Other ideas for tool head design?](/img/tr.png)
![My New Pick & Place Machine [Liteplacer]](http://i.ytimg.com/vi/U1FCAFfndcw/mqdefault.jpg)
![[Tool changer] Sketch to prototype: build the first printhead](http://i.ytimg.com/vi/3eq_4Aj2HlI/mqdefault.jpg)
You could have the hotend and its fan rotated 90 degrees to fit a bigger fan in front. It can also reduce the side profile for you to fit more toolheads.
Yes, it might be a solution with a 4020 fan but have a larger size in the Y direction.
@@SlowEngineering True, it all comes down to trade offs. Assuming the whole point of your toolchanger is mainly to use different materials, you can reduce the volumetric space taken by each tool by incorporating part cooling into the tool carriage, similar to the pitstop designs by mihaidesigns, although I wouldn't recommend a 5015 fan for it, it makes the whole carriage bulky and heavy. A remote cooling solution is more ideal, like CPAP or even Berd Air (I think you'll find Berd Air to be a little more compact).
I think you have the insight to run a compact solution. I thought to separate the part cooling from the printhead before. But then I realized I needed to swap the tool heads without crashing the cooling ducts. This makes the swapping harder, so I suspended it. An arm for tool changers is making the entire system more complicated. I planned to build the system in the enclosure. On the other hand, I saw the Berd-Air you mentioned. It is indeed a solution for part cooling. But how about the pump's lifetime and how accurate control cooling is for particular layers or features?
@@SlowEngineering I'm not actually quite sure what the lifetime of the pump is, it's one of the least documented cooling solutions as it came right before everybody jumped on the CPAP bandwagon. I do have one in my possession, and will be testing it out for myself in terms of cooling performance and lifetime sometime in the near future. As far as notable people who have documented their Berd Air use on YT, I can really only point to @Advanced 3d Printing and possibly MirageC (although he quickly upgraded to CPAP afaik) if you'd like asking them or looking to their videos for an indication of cooling control. In my opinion it can be a lot better than regular blower fans due to the weight savings and higher pressured air, but has little volume of air flow (I find CPAP to be best for all around cooling). Otherwise finding other people who have actually used Berd Air through other means are probably few and far between.
Perhaps depending on the space of the toolchanger, you may be able to fit auxiliary fans if you find Berd Air to be subpar, I know I definitely need to design my own for my bed-slinger due to toolhead space constraints.
I agree that the CPAP concept is the best for all-around cooling. Just need to deal with the inlet and let the enclosure have a similar temperature. I'll try a different design to see how it will be. Thank you for your suggestions and detailed explanations.
請問可以拍怎麼更換噴頭或改裝嗎，因為我是ender3-2的使用者 想學習怎麼挑選模組，與該注意的盲點 像是v12 v24,v5 v6,e3d 該如何選用
一般噴頭就是加熱後用工具轉下來，現在有一些有出可以直接用手轉的但也有其他缺點。
不太懂挑選模組的意思，如果是挑熱頭改裝就是考慮未來要印什麼材料、現有空間夠不夠、需不需要轉接、周邊零件配置等
電壓就看原系統給的電壓是多少，除非是整機更換就可以自行選擇零件電壓
You have better options such as XOL and DB tool headers😂😂😂
I haven't seen XOL before. Thank you for the information.