I just bought an Ultimaker 2+ Extended and since I have used a CR-10 for about 2 years I still have a lot of 1.75mm filament and the 1.75mm filament is highly available in my country, therfore I would like to convert the UM2+ to 1.75mm.
I would also like to try out dual extrusion and direct drive, and I found this thread, which seems to include the 1.75mm part and also the dual extrusion part. It also seems to do it for around the same price as it would cost to only do the 1.75mm conversion.
I have looked a lot into the BOM and the seller from Taobao's store and found that almost all that is needed is possible to buy from this seller. Are there any reasons why you choose not to do that? Bad quality or something like that?
Here is the list I have created:
Total Price (RMB)
UM2 1.75 Hotend Kit (Heatsink, Bowden Coupler)
UM2 1.75 Hotend Heat Block
290°C High Temp Print Hotend Insulator 2*4*1
UM2 Heater Cartridge
UM2 PT100 Sensor
2*6.35 PTFE Bowden Tube
6.35 Bowden Coupler
1.75 Filament Feeder
NEMA17 42*48 Stepper Motor
3510 12v Blower Fan
3010 5v Hotend Cooling Fan
Linear Bearing LM6LUU 6*12*35mm
Can I still use the original feeder but with a 2*6 PTFE Bowden tube and then buy this extruder: https://item.taobao.com/item.htm?spm=a1z10.3-c.w4002-9900754940.72.2ada2d37ndiKyj&id=525270842166 and use a bowden tube made for 1.75mm or would that cause problems? Maybe it's better to buy two of the metal feeder? If so, I guess I only need two "normal" 1.75mm bowden tubes? The 2*4*1 insulator is out of stock right now, I guess 2*4*1.5 wont work, so I need to wait until it's back in stock before I can order anyway.
One of the reasons I would like to order everything or most of the stuff from the same seller is that we pay a fixed tax/package here, the other is to save on shipping, and also that I get all the items at the same time 🙂