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SoliForum - 3D Printing Community → XYZ Printing DaVinci → Need help With PLA
scobo did you run factory firmware with your e3d?
I love the e3d ive got ony ramps da vinci and want to add it to my stocker, but I dont want to give up the easy file transfer with s3d my stock da vinci has by going to repetier
No, I switched to repetier before fitting the E3D.
After this upgrade should I put on a filament fan? Anyone use one? I'm still worried about finding the right voltage. How do you set up a external power supply. Like a LC power supply?
I take it you mean a layer fan.
They are useful when printing small, thin objects and for bridging and especially with pla.
I used a spare 12v dc adapter I had lying around. Just a case of soldering the +/- wires to the fans wires.
I use these connectors which makes the job childs play ..... http://www.ebay.co.uk/itm/WHITE-HEAT-SH … hash=item0
I just printed a holder for a 40mm fan, ordered the fan off Amazon and should be here on Saturday ($6 shipped).
These are just standard CPU/PC fans, and have a 3 pin connector with red,yellow, and black wires. Red is your positive voltage (could be anything up to about 12V). Black is negative/GND. The yellow wire is a tachometer/RPM sensor.
This color scheme can be confusing, because usually yellow wires in a computer are +12V.
They are variable fans, meaning the more voltage you supply, the faster they turn. Motherboards control them by turning them up and down as needed to match a set RPM.
If you hook the red and black up to constant voltage, and ignore the yellow, it will just run continuously.
More interesting would be to hook it up to the fan sensor on the extruder, and be able to control the speed with G-code. I don't know for sure, but I think the extruder fan runs off 5 volts, so you won't get the full power of the fan.
Someone else who has done that mod might be able to chime in.
Yeah, only 5v on the stock fan.
That was why I went with an external 12v power supply.
mark.burton wrote:buy the real deal. a clone will have a Bowden adapter that is required to be used most times as well. the real deal will work with a bowden or direct with out having to have the Bowden adapter (for 1.75 mm anyway).
I try and support the people doing the innovation so I like buying genuine. my e3d v6 and my cyclops are genuine I got them from matterhakers
Totally agree.
Be careful tapping into the 12v. I've heard of people wrecking the mainboard attempting that.
It was for that reason I used an external 12v power supply for my E3D fan.
I used this adapter so I did not have to touch anything directly on the original for the 12 v source. I ended up using t-tap type connectors to "tap" into the lines on the extension.
http://www.amazon.com/StarTech-com-8-In … ower+cable
The 5V control for the stock extruder fan could still be used to control a 12 volt layer fan by means of a simple transistor.
It would have to be a transistor that works in the 0 to 5V range, and would need a current limiting resistor on the gate.
Is 5 volts on a 40 millimeter fan enough to keep the layer cool?
Is 5 volts on a 40 millimeter fan enough to keep the layer cool?
Not sure about that one, I've only ever used 12v.
I'm sure some of the guys over on the Voltivo forum have tapped 12v from the mainboard.
I am using the stock davinci fan for my layer fan it works fine
Wow!!!!! 5 hrs later and just finished. It wasn't bad but it wasn't fun either. Everything seems to work great. going to run a print first thing tomorrow. I too just used the stock 5v fan and installed a layer fan.
Nice one !
Enjoy your jam-free, high quality printing. 
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