Performance tests that are worthy of challenging I've been curious about how Bulbul Junior, my homemade Kossel Mini, performs and what's limitation of it. My confidence of 3D Printing went up lately after layer fan installation and understanding the temperature control. General specification of Bulbul Junior RAMPS 1.4 controller E3D V6 Hotend, 0.4 mm nozzle PLA 1.75 mm filament Impeller Layer height: 0.1 mm cdsc_0082.jpg mod_embed_images_loadimage('93fe6c2de87b4c34ae9a21c07d1dac41', '/forum/thumbcache/213/397/6c9/11f/801/cbe/351/96a/da7/f35/3f_800x400.png', 'https://butterflyofdream.files.wordpress.com/2015/07/cdsc_0082.jpg?w=640', 'https://reprap.org/forum/addon.php?4,module=embed_images,check_scaling=1,url=https%3A%2F%2Fbutterflyofdream.files.wordpress.com%2F2015%2F07%2Fcdsc_0082.jpg%3Fw%3D640', '', 528904, 800, 400, 'Loading image ...', false); The Marvin on 3D Hubs Layer height: 0.05 mm cdsc_0030.jpg mod_embed_images_loadimage('c14e896bf11f0a658bd4212acbcfb2ec', '/forum/thumbcache/953/854/826/683/ae8/278/b52/a53/7e4/d52/5c_800x400.png', 'https://butterflyofdream.files.wordpress.com/2015/06/cdsc_0030.jpg?w=640', 'https://reprap.org/forum/addon.php?4,module=embed_images,check_scaling=1,url=https%3A%2F%2Fbutterflyofdream.files.wordpress.com%2F2015%2F06%2Fcdsc_0030.jpg%3Fw%3D640', '', 528904, 800, 400, 'Loading image ...', false); Excerpt from Make (makezine.com) Vol 42, WHAT IS PRINT QUALITY?, p35 DIMENSIONAL ACCURACY TEST: Probes a printer’s ability to fabricate dimensionally correct geometries in the XY plane. Reveals backlash in X and Y directions if present. OVERHANG TEST: Tests printer’s ability to compile overhangs at 30, 45, 60, and 70 degrees. BRIDGING TEST: Gauges printer’s ability to span unsupported horizontal gaps of 20mm, 30mm, 40mm, 50mm, and 60mm. POSITIVE FINE FEATURE TEST: Tests printer’s ability to resolve fine features (from 3mm square to 0.4mm square). TOLERANCE TEST: Quantifies printer’s ability to resolve fine negative space features in the XY plane, specifically the clearance between a captive pin and a hole. XY RESONANCE TEST: Tests the printer’s ability to resolve single-extrusion width features and exposes resonance in the XY gantry. Z RESONANCE TEST: Exposes mechanical issues in the Z motion system. performance_test_guide.jpg mod_embed_images_loadimage('2ede60c3b91865b75bd998c554d0e325', '/forum/thumbcache/d4b/a1a/ce1/c90/5b4/6ca/d2a/c68/5f3/d41/ca_800x400.png', 'https://butterflyofdream.files.wordpress.com/2015/07/performance_test_guide.jpg?w=640', 'https://reprap.org/forum/addon.php?4,module=embed_images,check_scaling=1,url=https%3A%2F%2Fbutterflyofdream.files.wordpress.com%2F2015%2F07%2Fperformance_test_guide.jpg%3Fw%3D640', '', 528904, 800, 400, 'Loading image ...', false); DSC04368_preview_featured.JPG mod_embed_images_loadimage('1a6a119647f9746d07c976974a7b3038', '/forum/thumbcache/2ca/649/0d6/a21/5f3/ca9/d34/0aa/722/4fd/a7_800x400.png', 'http://thingiverse-production-new.s3.amazonaws.com/renders/6b/29/10/67/4f/DSC04368_preview_featured.JPG', 'https://reprap.org/forum/addon.php?4,module=embed_images,check_scaling=1,url=http%3A%2F%2Fthingiverse-production-new.s3.amazonaws.com%2Frenders%2F6b%2F29%2F10%2F67%2F4f%2FDSC04368_preview_featured.JPG', '', 528904, 800, 400, 'Loading image ...', false); You can download the test models on Make: 2015 3D Printer Shoot Out Test Models (http://www.thingiverse.com/thing:533472). I printed three of the test models for the past few days. And the results gave huge embarrassment so I swallowed pride, got back the humility again as a learner. Fine Positive Features test was the worst. cdsc_0046.jpg mod_embed_images_loadimage('1b5bfffe591f3eeb9316b0bf988d86aa', '/forum/thumbcache/633/73a/3ef/025/252/b8b/9db/cda/a2a/2bb/5a_800x400.png', 'https://butterflyofdream.files.wordpress.com/2015/07/cdsc_0046.jpg?w=640', 'https://reprap.org/forum/addon.php?4,module=embed_images,check_scaling=1,url=https%3A%2F%2Fbutterflyofdream.files.wordpress.com%2F2015%2F07%2Fcdsc_0046.jpg%3Fw%3D640', '', 528904, 800, 400, 'Loading image ...', false); I managed to print the cones after many trials, tweaking Slic3r and Estep calibrations. I still need to find the right retraction setting though. Layer height: 0.1 mm cdsc_0050.jpg mod_embed_images_loadimage('1845d0b09a78a9983843422cc3e71995', '/forum/thumbcache/fa4/f08/81b/13a/2fe/5d5/dc7/041/74b/4e6/0a_800x400.png', 'https://butterflyofdream.files.wordpress.com/2015/07/cdsc_0050.jpg?w=640', 'https://reprap.org/forum/addon.php?4,module=embed_images,check_scaling=1,url=https%3A%2F%2Fbutterflyofdream.files.wordpress.com%2F2015%2F07%2Fcdsc_0050.jpg%3Fw%3D640', '', 528904, 800, 400, 'Loading image ...', false); Overhang test By Cura cdsc_0066.jpg mod_embed_images_loadimage('ad0bbd0118d86b5074fbc4fda98cc950', '/forum/thumbcache/d74/4dd/096/a9e/ad2/b7d/331/f00/f9c/c9e/6e_800x400.png', 'https://butterflyofdream.files.wordpress.com/2015/07/cdsc_0066.jpg?w=640', 'https://reprap.org/forum/addon.php?4,module=embed_images,check_scaling=1,url=https%3A%2F%2Fbutterflyofdream.files.wordpress.com%2F2015%2F07%2Fcdsc_0066.jpg%3Fw%3D640', '', 528904, 800, 400, 'Loading image ...', false); cdsc_0068.jpg mod_embed_images_loadimage('fd35676e9fed5837d87c33f26e5798c9', '/forum/thumbcache/831/221/332/220/047/b0b/676/324/a6a/0fd/d9_800x400.png', 'https://butterflyofdream.files.wordpress.com/2015/07/cdsc_0068.jpg?w=640', 'https://reprap.org/forum/addon.php?4,module=embed_images,check_scaling=1,url=https%3A%2F%2Fbutterflyofdream.files.wordpress.com%2F2015%2F07%2Fcdsc_0068.jpg%3Fw%3D640', '', 528904, 800, 400, 'Loading image ...', false); By Slic3r cdsc_0069.jpg mod_embed_images_loadimage('e4608d2b6de6128b396c8f243c31b1d7', '/forum/thumbcache/59f/a82/4a5/0b5/6b5/8d9/99c/a15/63f/ef0/d1_800x400.png', 'https://butterflyofdream.files.wordpress.com/2015/07/cdsc_0069.jpg?w=640', 'https://reprap.org/forum/addon.php?4,module=embed_images,check_scaling=1,url=https%3A%2F%2Fbutterflyofdream.files.wordpress.com%2F2015%2F07%2Fcdsc_0069.jpg%3Fw%3D640', '', 528904, 800, 400, 'Loading image ...', false); Ugly back side cdsc_0071.jpg mod_embed_images_loadimage('c2d73db40a39770a09e72bd6b5c1844b', '/forum/thumbcache/233/360/603/7e7/539/82b/8eb/a79/0ad/b8c/d9_800x400.png', 'https://butterflyofdream.files.wordpress.com/2015/07/cdsc_0071.jpg?w=640', 'https://reprap.org/forum/addon.php?4,module=embed_images,check_scaling=1,url=https%3A%2F%2Fbutterflyofdream.files.wordpress.com%2F2015%2F07%2Fcdsc_0071.jpg%3Fw%3D640', '', 528904, 800, 400, 'Loading image ...', false); Bridging test cdsc_0062.jpg mod_embed_images_loadimage('656036d38480024f1040e27a6a548c37', '/forum/thumbcache/970/351/a6c/aff/a6e/f0a/80c/068/8db/ddc/a9_800x400.png', 'https://butterflyofdream.files.wordpress.com/2015/07/cdsc_0062.jpg?w=640', 'https://reprap.org/forum/addon.php?4,module=embed_images,check_scaling=1,url=https%3A%2F%2Fbutterflyofdream.files.wordpress.com%2F2015%2F07%2Fcdsc_0062.jpg%3Fw%3D640', '', 528904, 800, 400, 'Loading image ...', false); Now I feel like I'm back to square one. Two outstanding issues are over extrusion and retraction. Regards, Hughe https://reprap.org/forum/read.php?4,528904,528904#msg-528904 Sun, 08 Mar 2026 22:12:55 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?4,528904,533837#msg-533837 Re: Performance tests that are worthy of challenging https://reprap.org/forum/read.php?4,528904,533837#msg-533837 Triffid_Hunter's guide.
Original E steps was 462.80. Present E steps is 443.09.

Infill 95% | solid layer (100% infill)


Slic3r setting for the bridge

Temperature: 185C
Layer fan speed: 100%
Layer height: 0.2 mm
Bridging speed: 10 mm/s






]]> janpenguin Reprappers Fri, 17 Jul 2015 20:03:05 -0400 https://reprap.org/forum/read.php?4,528904,533133#msg-533133 Re: Performance tests that are worthy of challenging https://reprap.org/forum/read.php?4,528904,533133#msg-533133 Trix Reprappers Thu, 16 Jul 2015 02:31:22 -0400 https://reprap.org/forum/read.php?4,528904,530077#msg-530077 Re: Performance tests that are worthy of challenging https://reprap.org/forum/read.php?4,528904,530077#msg-530077
here is the link:

[makezine.com]]]> thetazzbot Reprappers Tue, 07 Jul 2015 17:26:12 -0400 https://reprap.org/forum/read.php?4,528904,528953#msg-528953 Re: Performance tests that are worthy of challenging https://reprap.org/forum/read.php?4,528904,528953#msg-528953
These calibration parts are designed to be challenging, so do not be discouraged, you are learning a lot and improving the quality of your prints! (tu)]]> AndrewBCN Reprappers Sat, 04 Jul 2015 06:00:00 -0400 https://reprap.org/forum/read.php?4,528904,528906#msg-528906 Re: Performance tests that are worthy of challenging https://reprap.org/forum/read.php?4,528904,528906#msg-528906 elwood127 Reprappers Sat, 04 Jul 2015 01:34:04 -0400 https://reprap.org/forum/read.php?4,528904,528904#msg-528904 Performance tests that are worthy of challenging https://reprap.org/forum/read.php?4,528904,528904#msg-528904 My confidence of 3D Printing went up lately after layer fan installation and understanding the temperature control.

General specification of Bulbul Junior
RAMPS 1.4 controller
E3D V6 Hotend, 0.4 mm nozzle
PLA 1.75 mm filament


Impeller
Layer height: 0.1 mm


The Marvin on 3D Hubs
Layer height: 0.05 mm


Excerpt from Make (makezine.com) Vol 42, WHAT IS PRINT QUALITY?, p35

DIMENSIONAL ACCURACY TEST:
Probes a printer’s ability to fabricate dimensionally correct geometries in the XY plane. Reveals
backlash in X and Y directions if present.

OVERHANG TEST:
Tests printer’s ability to compile overhangs at 30, 45, 60, and 70 degrees.

BRIDGING TEST:
Gauges printer’s ability to span unsupported horizontal gaps of 20mm, 30mm, 40mm, 50mm, and
60mm.

POSITIVE FINE FEATURE TEST:
Tests printer’s ability to resolve fine features (from 3mm square to 0.4mm square).

TOLERANCE TEST:
Quantifies printer’s ability
to resolve fine negative space features in the XY plane, specifically the clearance between a
captive pin and a hole.

XY RESONANCE TEST:
Tests the printer’s ability to resolve single-extrusion width features and exposes resonance
in the XY gantry.

Z RESONANCE TEST:
Exposes mechanical issues in the Z motion system.





You can download the test models on
Make: 2015 3D Printer Shoot Out Test Models (http://www.thingiverse.com/thing:533472).

I printed three of the test models for the past few days. And the results gave huge embarrassment so
I swallowed pride, got back the humility again as a learner.

Fine Positive Features test was the worst.


I managed to print the cones after many trials, tweaking Slic3r and Estep calibrations.
I still need to find the right retraction setting though.
Layer height: 0.1 mm




Overhang test

By Cura




By Slic3r


Ugly back side


Bridging test


Now I feel like I'm back to square one. Two outstanding issues are over extrusion and retraction.

Regards,
Hughe
]]> janpenguin Reprappers Sat, 04 Jul 2015 01:22:02 -0400