VzPrinthead dragon heatsink duct 40mm Version

Didn't have any 2510 fans on hand so I remixed the 2510 duct to use 40mm fans.

Did not test printing on a .4 noz as I have .6 installed. 

You will need 4 M3 heat set brass inserts for this model. If you are printing this it is assumed you are also printing the printed version of the vzprinthead so you will have some of these anyways.

Print in PETG, ABS or any thermoplastics with decent heat deflection. PLA may work short term but will probably warp due to heat emmitted by the hotend.

I have no advice for sla printing or what resin to use.

Print orientation below v

KNOWN ISSUES will fix when I have time

•  None that I know of atm. Let me know and comment if you find any!
• This shroud is CHUNKY and bumps into the frame and interferes with the motor belts when trying to use the full build volume this is not a problem if you modified the vzbot to remove the top front extrusion for better visibility
• This duct heavily restricts airflow to the heatsink the effect is pronounced by the design and cooling is only improved over the 2510 version due to the larger 40mm fan having a greater static pressure.

Recommendation Avoid this duct if you can only use if you have to temporarily and even then I've seen better 40mm shroud designs for the vzbot.
 

personally I recommend using the less restricted 2510 duct by Vision Overload over on the vzbot discord in the mods threads section Dragon HF Hotend Fan Duct with better flow and this fan ASB02505SHA-AY6B, it boasts 4.3cfm and a tachometer for fan failures unfortunately it is 5v so you either need a mainboard that has 5v fan jumpers or a buck converter.