John Colborn
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Activity overview
Latest activity by John Colborn-
John Colborn commented,
Was there an issue or difference with the filament drive mechanism or drive nut (the toothed-wheel which is meant to grip the filament as it is pushed in)? Different clamping force on the toothed-...
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John Colborn commented,
Seems like the layers nearest the bed are influenced by bed heating moreso than subsequent/higher layers. If poor quality occurs near the bed then it infers we'd need to reduce the rate of deposit...
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John Colborn commented,
The part on the left looks slightly over-extruded. With two different machines, there would be two different extruder nozzles and two different spools of raw material. Both of these typically nee...
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John Colborn commented,
Couple guesses for consideration: I have had filament quality change mid-spool. Filament diameter, contamination, or dryness may have changed during the latter-part of the spool. Filament diam...
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John Colborn commented,
For this material, I think that the color or degree of transparency is related to the temperature of the base layer related to the temperature of the subsequent layer deposited. Where the extrusi...
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John Colborn commented,
Here are some ideas: H1: Tool head gantry rigidity and/or runout in the linear guides allows the extruder tip to have play in the problematic axis (Y, is it?); possibly exacerbated by forces on t...
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John Colborn commented,
Right-side print added: - cooling fan - dried filament/raw material - reduced extrusion rate, or - cooler extrusion temperature Are any of these correct?