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Dragon Hotend Mount for Ender 5 [V2] WIP

danmitch1

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Dec 15, 2007
Messages
2,240
My poor 1080ti suffered 34 hours at 100% load lol.. only saw 46c though.

Im currently assembling, everything so far is coming together nicely
 

danmitch1

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Dec 15, 2007
Messages
2,240
Alright, got it all together, now just to wire it all up and re do the firmware.
I bought some RGB wiring to clean up my extensions. I made dupont extentions for the fans, im adding 2 extra just incase I want to add something else .
 

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danmitch1

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And 4 more
 

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danmitch1

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Dec 15, 2007
Messages
2,240
Finished my assembly animation! What do you guys think?

ps : better to watch in full screen
Update on this one. With my motherboard hiccup out of the way, I completed the wiring and was able to complete testing of the new mount. It works perfectly. No more heat creep with that delta fan and more open area around the heat break(a bit on the noisy side, but its livable) I also gained 30mm of Z axis build volume!
 

danmitch1

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Dec 15, 2007
Messages
2,240
Alright, Im remaking this mount. With the very generous help from @SugarJ ! Who CNC'd this for me

the simple design.png

IMG_20210213_165828963.jpgIMG_20210213_165750822.jpg

I was so excited to get this out to him that I didnt measure the screw hole depth.. until I buy more screws I had to do this for a shim..

IMG_20210213_170258627.jpg

I also didn't take into account the BMG extruder when I designed the bracket. When I line up the filament path with the bracket, the BMG doesnt fit ...

bmg not fitting.png

I found out that the only way to get it to fit with out completely modifying it was with the lever facing backwards which is totally dumb as its already annoying enough to change filament as it is.

lever at the back.pngexploded view lever at back.png

Sooo @lowfat 's thread got me thinking about the orbiter extruder. Ill have to download the files and see if its a viable option.
Ill keep you guys posted :p
 

danmitch1

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Dec 15, 2007
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2,240
Shoulda posted my drawing question here, sorry..
Anyway im back at this again...

As I was mentioning in the general 3d printing thread, I was contemplating getting the orbiter but the 47mm gap between the hotend throat and drive gears seems like too much to me.

So Im re thinking the deconstructed BMG extruder idea.

Basically im stuck linking the stepper motor to the drive gear assembly. I thought maybe a timing belt but then Id have to rig up some sort of tensioning system too.

Then I though, couldnt I use another gear between these? I assume I would have to reverse the stepper direction but what I dont know is how to source a gear that matches the teeth and all that. where would I start and is this even feasible?

gear.png
 
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