Ultra-compact ultra-light hotend for Anycubic Kossel

cults3d

This hotend just dropped 51g off my effector. I managed to print 400mm/s with pretty nice results (very minimal ringing) using TMC2130 drivers (plus my other modifications) with this hotend using Klipper firmware. The limit turned out to be the TMC2130 drivers, as I encountered problems when I increased the current past 0.9A (the chip has a design-limit of 0.96A). I've since switched to TMC2208 drivers so I can increase the current further, but I haven't run any more speed tests yet. I may post a video later. I wanted to try combining parts from my Anycubic Kossel Linear Plus, but it looks like no one else has put this combination together before, so I made my own mount for it. This setup uses the following components: 1. Heatsink & heatbreak from Trianglelab. It doesn't have a name, unfortunately, as I'd like to be able to refer to it by name. It's got external dimensions similar to the Ender 3 heatsink, but with fewer/thicker fins and a heatbreak closer to that of a MicroSwiss. https://www.aliexpress.com/item/4000083295807.html 2. Heatblock, heater, & nozzle from Trianglelab. This also needs a name. It's tiny and basically just a piece of threaded aluminum tube with a cylindrical heater wrapped around it. If it's currently listed as "unavailable", check back later. I asked them about this and they said they were improving the design and would be bringing it back soon. https://www.aliexpress.com/item/32697889176.html 3. 3010 fan driven at 80% to reduce noise. 4. Various hardware, including 2x M3 nuts (pressed in the part cooler side), some longer M2.5 screws to mount the fan duct, and the rest were stock. I may have used screws 1-2mm shorter for the part cooler blower, but I'm not sure (I've been running this for a couple weeks now, haven't had to modify anything). Note that this combination does lower the nozzle by a few millimeters, which is intentional (see below). Spacers are provided for moving your favorite part cooler duct down by 2.5mm or 3mm.