hakkattakk

I guess it's the fan in the control-box you want to replace? I did this mod: https://www.thingiverse.com/thing:2764990 and used 1200m Noctua fans (NF-S12A) instead. I don't remember if I use any other fans in the box, I guess you can check that in the comments for the mod. However I have used this for over a year now without any problems, and the box seems to be very cool. I have also replaced the hotend-fan to a NF-A4x20 and added NEMA17 dampers. I must say that the printer is quiet now 🙂

Hi, I bought an upgrade-kit from AliExpress with the Mark2 board. However the "AWG 18 wire" and "Molex cable for the temperature sensor" (I think it's a molex kk 254 cable, but I can't find that anywhere either) was not included. I just cut some wire from another PT100 to use instead of the AWG 18 wire, I guess that should work, but I don't have any cable to put in the temperature sensor input. Are there any benifits to connect these cables at all on the Mark2 board, or can I connect the cables from the print-head directly on the Ultimaker board instead? This is the kit I bought: https://www.aliexpress.com/item/32827637039.html EDIT: It worked fine 🙂 Thanks!

Hi, Did you, or someone else, ever do this? Does it work good and what components are you using? I recently bought a UM2 Extended+ and since I have used a CR-10 before I have a lot of 1.75mm PLA/PETG (told my gf that it's worth around 300$, so it's probably more than that..). Therefore I looked into converting my UM2 to 1.75mm. I'm also interested in dual extrusion. After some research I found two different ways of doing this: 1. Mark2 with the second printhead and extruder made for 1.75mm 2. DXU I think Mark2 might be the wanted way since I can keep everything that is working great with 2.85mm, and hopefully get 1.75mm working okay. I will also be able to use the dual extrusion. DXU looks like a really nice modification as well, I think this is also the cheapest option, but I will not be able to mix 2.85mm and 1.75mm.

Hi again, It doesn't seems like it's possible to edit a post, so I have to create a new one. I asked a chinese colleage to ask the seller about the 2*4*1 insulator, and the seller said that he will not restock it. Do someone know if it's possible to order it from somewhere else?

Hi all, 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: Item Amount Price/Item Total Price (RMB) UM2 1.75 Hotend Kit (Heatsink, Bowden Coupler) 2 35 70 https://item.taobao.com/item.htm?spm=a1z10.5-c.w4002-9918354853.34.576d75aec3Kk6M&id=521401997290 UM2 1.75 Hotend Heat Block 2 25 50 https://item.taobao.com/item.htm?spm=a1z10.5-c.w4002-9918354853.34.576d75aec3Kk6M&id=521401997290 290°C High Temp Print Hotend Insulator 2*4*1 2 32 64 https://item.taobao.com/item.htm?spm=a1z10.5-c.w4002-9918354853.25.60724c2fxu3tfa&id=581596714621 UM2 Heater Cartridge 2 55 110 https://item.taobao.com/item.htm?spm=a1z10.3-c.w4002-9900754940.72.21672d37URXeVn&id=521394200175 UM2 PT100 Sensor 2 42 84 https://item.taobao.com/item.htm?spm=a1z10.3-c.w4002-9900754940.102.21672d37URXeVn&id=522151832206 2*6.35 PTFE Bowden Tube 2 15 30 https://item.taobao.com/item.htm?spm=a1z10.5-c.w4002-9918354853.32.576d75aec3Kk6M&id=521852878986 6.35 Bowden Coupler 2 1 2 https://item.taobao.com/item.htm?spm=a1z10.3-c.w4002-9900754940.40.29752d37CSFSAS&id=521730414662 1.75 Filament Feeder 2 NEMA17 42*48 Stepper Motor 1 49 49 https://item.taobao.com/item.htm?spm=a1z10.3-c.w4002-9900754940.97.29752d37CSFSAS&id=561490631135 3510 12v Blower Fan 2 3010 5v Hotend Cooling Fan 1 7.5 7.5 https://item.taobao.com/item.htm?spm=a1z10.3-c.w4002-9900754940.70.29752d37CSFSAS&id=521625926936 Linear Bearing LM6LUU 6*12*35mm 2 16 32 https://item.taobao.com/item.htm?spm=a1z10.3-c.w4002-9900754940.63.4d062d37AuQfUs&id=521432750014 Total: 498.5 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 🙂