Hi All -

During perimeter printing, the print head is pausing momentarily. As a result, little blobs are forming in the perimeter. This only happens in curves. It is like the Arduino can't keep up. I have a MendelMax 15+ and I am using Slic3r 0.9.0 with Maxbot's Marlin ZIP. The source file is from Alibre PE.

Any ideas appreciated.

TIA - Brad

PRINT SPEED
===============
Perimeters 80mm/sec
Small perimeters 60mm/sec
External perimeters 100%
Infill : 80mm/sec
Solid Infill 80mm/sec
Top solid infill 60mm/sec
Bridges: 60mm/sec
Travel: 130mm/sec
First layer speed ratio: 50%
==============

PRINT SETTINGS
==============
Perimeters: 3
Solid Layers: 3
Fill DensityL: 0.5
Fill Pattern: Rectilinear
Solid Fill Pattern: Rectilinear
Randlmize Tsarting Points *YES!*
Generate Support Material *NO!*
=============

RETRACTION
=============
Length 1mm
Lift Z: 0
Speed: 30mm/s
Extra Length on Restart: 0mm
Minimum Travel after Restart: 2
=============

This can happen on curves with a lot of segments when printing over USB.
What serial speed is your firmware set to?
Are you seeing comms errors?
The only real solution is to print from SDCard.

Polygonhell -

USB set to 115200. I will try 250000 in Marlin.

Correct me if I am wrong... I can't us SDCard when using 24v power? I think it required D1 diode.

- Brad

Yes should be able to use it with the USB still plugged in. The diode is needed to run it stand alone.

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