Benchy Typical Bow Blemish Issue
For those that have resolved this issue lately what is causing the typical blemish on the bow of the benchy and how do you correct it? My MK3 has been down for awhile waiting on a replacment hotend assembly and time to get back into 3D printing.
Last night I finally got the time to install the hotend, calibrate the printer and print a benchy. Before the print I had updated the MK3 with the latest firmware and updated Slic3r.
All the previous problems went away and I want to print out the new extruder R3 parts. Before I do this I want to calibrate the hotend and fine tune the print output to get rid of the blemish on the benchy and other similiar issues.
I never did fine tune my MK3 to get rid of this blemish because of being new and all of the firmware issues and later hotend problems that ended up in a replacement. My ABS filament is on order so how do I get better print quality?
Re: Benchy Typical Bow Blemish Issue
Heat seems to be a common problem at the bottom of the bow.
and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan
Re: Benchy Typical Bow Blemish Issue
Here are the pictures. Over all the benchy isn't that bad, but the bow blemish has been on every one that I've printed. After completing all calibrations I went back in and changed the Z height by +/- 10 or 15 degrees and completed a new "first layer calibration test".
I haven't played with the speed, temp or any other parameters yet. These are just stock settings.
There was a thread on how to fix this, but I can't find it after the update to the website.
I've also noted that under the Calibration section there are new features. Mesh Bed Leveling, Bed Level Correct, PID calibration and Temp calibration. This is an area I will be spending time on in the near future.
Any suggestions would be appreciated.
Re: Benchy Typical Bow Blemish Issue
Here's one of the first Benchy's I printed showing the same errors.
Re: Benchy Typical Bow Blemish Issue
I had similar issues,
I could turn the Benchy 45 degrees and the blemish went away,
however printing a new fan shroud helped me print benchy without the angular displacement regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: Benchy Typical Bow Blemish Issue
Thanks Joan,
I turned it 90 degrees, but didn't think of trying it at 45 degrees. I wanted to reduce all printing problems before printing the new Extruder parts.
Re: Benchy Typical Bow Blemish Issue
here's one I printed last night...
normal orientation, facing left to right, square on,
currently using this fan duct Actually I am using the same file printed with the previous fan duct, and it curled a tiny bit, so I used the newly printed curled fan duct to print this one,.... Ya know what I mean...
[attachment=0]20180807_225344[1].jpg[/attachment]
the STL is labelled RPS_MK3_Fan_Shroud.stl I am sure it came from Thingiverse...
and the benchy came out like this [attachment=1]20180807_201113[1].jpg[/attachment]
Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK