Why ugly String/Blobs effect? How to fix and have a smooth print surface?
Posted by willysan
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Why ugly String/Blobs effect? How to fix and have a smooth print surface? June 14, 2015 04:14AM |
Registered: 10 years ago Posts: 10 |
My DIY mini kossel delta printer (Bowden extrude, 1.75mm) has a print quality issue. It has a annoying "String/Blobs" effect which make the surface not smooth. Why? How can I fix this?
Please find attached the #1. print out with mark to those ugly ball ball surface & #2. my hot-end setup for reference
Cheers,
Willy
Edited 1 time(s). Last edit at 06/14/2015 04:32AM by willysan.
Please find attached the #1. print out with mark to those ugly ball ball surface & #2. my hot-end setup for reference
Cheers,
Willy
Edited 1 time(s). Last edit at 06/14/2015 04:32AM by willysan.
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Re: Why ugly String/Blobs effect? How to fix and have a smooth print surface? June 14, 2015 12:44PM |
Registered: 9 years ago Posts: 606 |
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Re: Why ugly String/Blobs effect? How to fix and have a smooth print surface? June 14, 2015 01:18PM |
Registered: 10 years ago Posts: 10 |
Quote
tadawson
I found two things that did that on mine:
1) Too hot
2) Trying to run a graphic controller on a delta with an Arduino Mega - it caused movement too stutter, and every stutter was a blem . . .
- Tim
Thx Tim!
FYI. I did a POC and found the root cause just now. The root cause is about my Arduino Mega 2560 MKS Gen V1.3 board not powerful enough to drive 12864 LCD together with complex 3D model print process. My POC was to disable the LCD feature in Marlin firmware and print same model again with my MacBook Pro instead of PC-less direct print via SDcard.
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Re: Why ugly String/Blobs effect? How to fix and have a smooth print surface? June 14, 2015 05:03PM |
Registered: 10 years ago Posts: 903 |
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Re: Why ugly String/Blobs effect? How to fix and have a smooth print surface? June 22, 2015 01:53AM |
Registered: 10 years ago Posts: 10 |
Not sure if 32-bit board can offer extra power for any other best feature but my string issue is solved after I changed over to "RepRapDiscount Smart Controller" 
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Re: Why ugly String/Blobs effect? How to fix and have a smooth print surface? June 22, 2015 12:33PM |
Registered: 9 years ago Posts: 606 |
Quote
willysan
Quote
tadawson
I found two things that did that on mine:
1) Too hot
2) Trying to run a graphic controller on a delta with an Arduino Mega - it caused movement too stutter, and every stutter was a blem . . .
- Tim
Thx Tim!
FYI. I did a POC and found the root cause just now. The root cause is about my Arduino Mega 2560 MKS Gen V1.3 board not powerful enough to drive 12864 LCD together with complex 3D model print process. My POC was to disable the LCD feature in Marlin firmware and print same model again with my MacBook Pro instead of PC-less direct print via SDcard.
For what it's worth, you can enable SD card support and not the LCD, you just need tomsta5t SD card jobs from your computer . . .
- Tim
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Re: Why ugly String/Blobs effect? How to fix and have a smooth print surface? June 25, 2015 09:35PM |
Registered: 10 years ago Posts: 58 |
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Re: Why ugly String/Blobs effect? How to fix and have a smooth print surface? June 25, 2015 10:01PM |
Registered: 10 years ago Posts: 32 |
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Re: Why ugly String/Blobs effect? How to fix and have a smooth print surface? June 26, 2015 12:06AM |
Registered: 10 years ago Posts: 58 |
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Re: Why ugly String/Blobs effect? How to fix and have a smooth print surface? June 26, 2015 02:08AM |
Registered: 10 years ago Posts: 32 |
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Re: Why ugly String/Blobs effect? How to fix and have a smooth print surface? June 26, 2015 05:33AM |
Registered: 10 years ago Posts: 58 |
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