I have been searching high and low for Fan Duct that does not obstruct the front view. Could not find one, hence I designed one.
It is for the Wanhao Duplicator i3 V2.1. The model has the proximity sensor and therefore the bracket for the fan is offset to the one side.
I have included the following photos:
- Photo of the box where the printer came in. (so you can be sure you have the correct model)
-Pics of the fan duct on the green mat.
(Please note this is my test piece and not the one that is installed). Hence the print quality not up to scratch.
-Pic of the fan installed (Note the Proximity sensor and the vertical plate). Note the unobstructed view from the front (the objective of the exercise)
Wanhao Duplicator i3 V2.1
You need to use supports to print the flat surfaces. However, if you allow the supports to print within the rounded piece of the cowl, you will never get them out. I used Cura and the support blocker to prevent the supports from printing in the circular portion.
You will also find a small plug. The printing leave the side open through which you can remove the supports. Use the plug to plug the hole to keep the air flowing correctly.
I have used a blower as it is flatter in that configuration as the axial fan. It also delivers a higher throughput. However, I could only find a 12V Blower. This is why I put an LM7912 regulator in line to bring the 24V of the PSU down to 12V. (The small PC Board with the heatsink)
It is for the Wanhao Duplicator i3 V2.1. The model has the proximity sensor and therefore the bracket for the fan is offset to the one side. The existing Wanhao i3 Fan ducts I found everywhere did not fit.
Herewith a link to a vendor that sells this model (use the phots for reference and ID of your printer model)
Furthermore, there is a plate sticking down where the fan needs to pass. I had to be very accurate in the cowl design to get the clearances correct to pass beneath the plate and still be away from the bed.