3D Printing - Best Scarf Seam Settings

The below experiments were conducted by Adam L with photos, spreadsheets, and 3MF profiles available for download via Printables. The data is captured here for historical purposes only. If you find the below helpful, please extend your thanks and support to Adam L directly on his site, which contains extensive additional content and community input. Learn more about Scarf Seams via Teach Tech

See also: 3D Printing, 3D Printing - Interface Patterns, 3D Printing - Perfect Ironing Settings

Exp	Score	Eval	Layer Height	Outer Wall Speed	Inner Wall speed	Scarf Steps	Scarf Length	Outer Wall Width	Test Style	Other
35	Reference		0.2	200	300	NA	NA	0.6	Double Hex	Traditional_Seam_Test
38	Reference		0.2	200	300	NA	NA	0.6	Cylinder	Traditional Seam
27	2.75	Almost flawless > 20	0.28	200	300	10	20	0.6	Double Hex
47	2.6	>34, ± start	0.2	100	300	10	20	0.6	Cylinder	internal scarf on
51	2.6	≈ 47	0.2	100	300	10	20	0.6	Cylinder	Staggered inner seams
52	2.6	≈ 47	0.2	100	300	10	20	0.6	Cylinder	internal scarf + Staggered InnerSeams
20	2.5	>19, > 3!	0.2	100	300	10	20	0.6	Double Hex
22	2.5	≈ 20	0.2	70	300	10	20	0.6	Double Hex
49	2.4	> 34	0.2	100	150	10	20	0.6	Cylinder	slower internal wall
50	2.4	≈ 49	0.2	100	100	10	20	0.6	Cylinder	slowest internal wall
34	2.25	v. light seam	0.2	100	300	10	20	0.6	Cylinder	Initial Cyl. validation
37	2.25	<27 i/o/i	0.28	200	300	10	20	0.6	Double Hex	Inner/Outer Wall order
44	2.25	≈ 34	0.24	100	300	10	20	0.6	Cylinder
46	2.25	≈ 34	0.2	100	300	10	20	0.6	Cylinder	Zero seam gap (vs 10%)
3	2	> 2	0.2	50	300	10	20	0.45	Double Hex
53	2	< 34… ❌walls	0.2	100	300	10	20	0.6	Cylinder	Random Seam
54	2	< 34… ❌walls	0.2	100	300	10	20	0.6	Cylinder	Random Seam + InnerScarf
36	1.75	<20 i/o/i	0.2	100	300	10	20	0.6	Double Hex	Inner/Outer Wall order
41	1.75	< 34	0.2	150	300	10	20	0.6	Cylinder
42	1.75	≈ 41	0.24	150	300	10	20	0.6	Cylinder
43	1.6	< 42	0.28	150	300	10	20	0.6	Cylinder
45	1.6	≈ 43	0.28	100	300	10	20	0.6	Cylinder
4	1.5	< 3 but >2	0.2	25	300	10	20	0.45	Double Hex
2	1	> 1	0.2	100	300	10	20	0.45	Double Hex
19	1	> 18, ≈ 2	0.2	100	300	10	20	0.5	Double Hex
21	1	≈ 19	0.2	70	300	10	20	0.5	Double Hex
32	1	≈ 2	0.24	100	300	10	20	0.45	Double Hex
18	0.75	> 1, < 2	0.2	200	300	10	20	0.6	Double Hex
25	0.75	≈ 18	0.2	70	300	10	20	0.42	Double Hex
33	0.75	< 32	0.28	100	300	10	20	0.45	Double Hex
39	0.75	< 34 < default	0.28	200	300	10	20	0.6	Cylinder	27 settings
9	0.5	> 1	0.2	200	300	10	5	0.45	Double Hex
10	0.5	> 1	0.2	200	300	10	10	0.45	Double Hex
24	0.5	< 2, > 1	0.2	100	300	10	20	0.42	Double Hex
26	0.5	< 2, > 1	0.24	200	300	10	20	0.6	Double Hex
29	0.5	≈ 26	0.28	200	300	10	20	0.5	Double Hex
40	0.5	< 39 above	0.28	200	300	10	20	0.6	Cylinder	27 settings + inner/outer order
17	0.25	> 1	0.2	200	300	10	20	0.5	Double Hex
28	0.25	< 26, > 1	0.24	200	300	10	20	0.5	Double Hex
1	0	N/A	0.2	200	300	10	20	0.45	Double Hex
5	0	≈ 1	0.2	200	300	2	20	0.45	Double Hex
6	0	≈ 1	0.2	200	300	4	20	0.45	Double Hex
7	0	≈ 1	0.2	200	300	20	20	0.45	Double Hex
8	0	≈ 1	0.2	200	300	100	20	0.45	Double Hex
15	0	≈ 1	0.2	200	300	10	20	0.45	Double Hex	Precise Walls On
16	0	≈ 1	0.2	200	300	10	20	0.45	Double Hex	30% start height instead of 0
30	-0.25	< 1	0.24	200	300	10	20	0.45	Double Hex
31	-0.25	≈ 30	0.28	200	300	10	20	0.45	Double Hex
14	-0.5	< 1	0.2	200	300	10	20	0.45	Double Hex	Classic walls (vs arachne)
11	-1	< 1	0.2	200	300	10	50	0.45	Double Hex
12	-1	< 1	0.2	200	300	10	Whole Wall	0.45	Double Hex
13	-1	< 1	0.2	200	300	10	20	0.45	Double Hex	Reverse on Odd, Threshold 0
23	-1	< 1	0.2	200	300	10	20	0.42	Double Hex
48	-1	❌bulge	0.2	100	300	10	20	0.6	Cylinder	internal scarf on + wipe before outer loop
55			0.2	100	300	10	20	0.6	Cylinder	34 + outer/inner
56			0.2	100	300	10	20	0.6	Cylinder	47 + outer/inner

Eliminate seams in your 3D prints with scarf joint seams - An exciting development! - YouTube