Ender 3 Upgrade Part 3 1MM Nozzle

Hi All,

Ender 3 has a build volume of 220 x 220 x 250 mm, I have never printed anything that was close to 250mm tall. With a 0.4mm nozzle, it would take days to print a functional model this tall.

Based on several youtube videos, 0.6 mm or 1mm nozzle are good options. So I bought both 0.6 and 1 mm nozzles for my Ender 3. To my surprise, cura does not have a proper profile for a 1mm nozzle. and none of the youtube videos has a good reference point to start.

In this instructable, I will share how I created a profile and learnings. This is not the best profile, but a great starting point to start tweaking

• Ender 3
• 1mm Nozzle
• spanner set (6mm and 7mm)

• From the menu, heat up the nozzle to 190 degrees
• Using a spanner remove the original 0.4mm nozzle
• Remove boden tube
• Fix the new 1mm nozzle
• Insert boden tube

• Open Cura, select 1mm nozzle and select 0.32mm height default profile
• Start editing the fields directly
• Layer height: 0.5mm
• 50% of the nozzle width
• Initial Layer Height: 0.5mm
• 50% of the nozzle width
• Wall line count: 1
• We do not want to have walls too thick and waste filament
• 1mm width is strong
• Top Layers: 2
• Bottom layers: 2
• Printing temperature: 210 (for PLA)
• We want the filament to melt faster, some might ask to increase this to 230 degrees
• I found 210 as good starting point
• Retraction: 4 mm
• One will have to tweak this based on their printer.I found this value a good starting point
• Print Speed: 40mm/s
• Need time for the filament to melt, reduced speed helps
• Infill: as low as possible, I used 5%

• Best way to test a new profile to its limits
• I used a horse model to print
• The print time was reduced from 1 day 12 hr to 7 hrs
• Based on my observations
• My initial retraction was set at 6mm, which caused gaps at the start of every layer
• Stringing at 215, but at 210, was lesser
• Good print quality with few under-extrusions and bubbles
• the imperfectness of 3d printer are enlarged

• 1mm nozzle is good and fast for vases, boxes, etc
• For organic shapes, a 1mm nozzle is not recommended
• Finner details will not be visible

Do share your experience with bigger nozzles