Routing extruder and hot end wires Ive been stumped on what is the best way to route the extruder and hot end wires from the X carriage. Do most people just run it through a plastic wire loom to get the flex or what? I have two printers and tidying up the messy wires would go a long way in making them look a little less like printers made from scrap pieces. https://reprap.org/forum/read.php?1,219240,219240#msg-219240 Sat, 10 Oct 2026 04:36:42 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,219240,219426#msg-219426 Re: Routing extruder and hot end wires https://reprap.org/forum/read.php?1,219240,219426#msg-219426


Reasons I like this:

It enforces a minimum bend radius of sorts all by itself, less kinking of wires that are being constantly moved means more reliability and less fire. If you want more bend-radius enforcement you can use a thin strip of polypropylene sheet plastic, or I have also used LDPE cut from a plastic milk-bottle.

It's neat as hell.

It's easy to wire up and understand your wiring loom. The colours make a huge difference.

Amphenol spectrastrip brand cable is capable of a lot of current. If you need more you can bond two lines next to each other. This is useful for hotends and other parts that move like the heated bed, where you can bond even more lines together to get 10A rating easily, while still keeping nice bend-radius enforcement and tidiness by having the thermistor wires on the same ribbon. Bend radius enforcement is really quite important if you don't want a fire on a 10A cable.

It's easily connected to 0.1" headers with no soldering, stripping, or fuss using these wonderful things called IDC's (Insulation Displacement Connectors) - you just place the connector over the cable and clamp it down, pins in the connector push little forked teeth through the ribbon cable making an electrical connection. This is how your old IDE cables are made with many connectors coming off one strip.

All credit for this idea goes to Nophead who first pointed it out in his Mendel90 development blogs.
]]> SanjayM General Tue, 18 Jun 2013 12:39:24 -0400 https://reprap.org/forum/read.php?1,219240,219261#msg-219261 Re: Routing extruder and hot end wires https://reprap.org/forum/read.php?1,219240,219261#msg-219261
Also use connectors for everything (I dont suggest power supply motherboard connectors, molex connectors, or sata connectors, they could get bulky; use ones that have very close spacing and use the crimp pin things)

I haven't tried 3d printing the connectors though (try for 0.05" pitch or less if it's doable)]]> CPS General Mon, 17 Jun 2013 23:46:17 -0400 https://reprap.org/forum/read.php?1,219240,219248#msg-219248 Re: Routing extruder and hot end wires https://reprap.org/forum/read.php?1,219240,219248#msg-219248

]]> Bruce General Mon, 17 Jun 2013 22:20:33 -0400 https://reprap.org/forum/read.php?1,219240,219240#msg-219240 Routing extruder and hot end wires https://reprap.org/forum/read.php?1,219240,219240#msg-219240 GITRDUN General Mon, 17 Jun 2013 20:55:31 -0400