Wanhao i3 V2 Extruder fan adapter for 50mm blower fan

thingiverse

I had a comment recently from TeamTEOR saying that he had run some tests comparing the 40mm stock fan with this adapter, and according to his results, the adapter significantly improved cooling on his printer. Unfortunately, I don't have access to the necessary tools to measure any differences myself, so I have to rely on his word. Edit: 2/23/17 Recently, I swapped out the original variation of this adapter for another version, and I wanted to showcase what was left of the dust stuck onto the print from four months of use. Now that all loose dust has been cleared, you can see the remaining stuck-on dust. I took some pictures using my phone's camera, which aren't of the highest quality, but they demonstrate how effectively the adapter can move air by pushing dust through it. I also showed off some m4 screws that were 20mm long, and while the normal screws worked fine, the countersunk ones were a bit too short. Edit: 1/30/17 The fans I used have since stopped working properly, and they don't seem to be of great quality. It's been around three to four months since I started using a blower fan with my printer, and it's been performing well. Several alternative designs have emerged, making the use of squirrel fans more common. Edit: 1/9/17 I found a fan bearing the same label as mine on eBay, so I ordered one to compare its performance. I'll update you when I get it. This adapter is designed for a 50mm blower fan and allows you to swap out the standard 40mm axial fan. I started working on this project in late October of 2016 and began using it early November. After three weeks, I noticed no significant difference from the 40mm fan. I've included two models: one with integrated spacers and the other without. This print uses the two stock screws that held the 40mm fan on the printer, forcing fan orientation as seen in the pictures above. I recommend using a fan that can provide a lot of push. The fan I use only has 12 volts listed and no amps listed, so I ordered a 15 amp fan for testing, but unfortunately, it was defective. It may be sufficient airflow, but I couldn't conduct proper print tests with it. I suggest being cautious when purchasing a fan, as you might not get what you expect. This happened to me while trying to find a suitable fan for this adapter. As for screws, I simply used some #8 UNC-32x1" screws that I had lying around, and they seem to work fine as a replacement, compatible with both the stock cooling fan and the Dii cooler. I provided pictures above of both fans mounted. Print Settings: Printer: Wanhao duplicator i3 v2 Rafts: Doesn't Matter Supports: Yes Resolution: .2 Infill: 20% Notes: I used supports with this print, so I recommend them. I used a .2 layer height for a quick print and about 20% infill. Custom Section: Why This Design I designed this adapter based on what I learned from my previous experiences with the 2 in 1 cooler concept. At the time, I was using the AzzA brace and placed the part within the movement area. While it does have to curve the air, I believe enough air is moved by the blower fan.