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We are custom building a Cartesian 3D printer to be used in a production 3D printing environment, with the following requirements:

• Intended Z resolution 0.13mm;
• Dual extruders (primary + support material);
• Four spools (two per material with y connector, perhaps add auto switch-over functionality later);
• Camera;
• Onboard 11" touchscreen for control & interaction, run by a Raspberry Pi 3;
• Custom board based on ATMega2560 to control the printer;
• Printer should gracefully handle conditions like "out of material", etc.

Question: How to select firmware?

Are there notable differences between the primary firmware options (Marlin/Repetier) for this setup? From the google code groups, I understand the Repetier has a much cleaner code base, and apparently gives smoother physical performance. Yet, from what I can gather, 95% of the community uses Marlin - is that correct?

Given that this printer will have the Pi3 to control "higher functions", is it worth considering a compact firmware like Teacup?

We are custom building a Cartesian 3D printer to be used in a production 3D printing environment, with the following requirements:

• Intended Z resolution 0.13mm;
• Dual extruders (primary + support material);
• Four spools (two per material with y connector, perhaps add auto switch-over functionality later);
• Camera;
• Onboard 11" touchscreen for control & interaction, run by a Raspberry Pi 3;
• Custom board based on ATMega2560 to control the printer;
• Printer should gracefully handle conditions like "out of material", etc.

Question: How to select firmware?

Are there notable differences between the primary firmware options (Marlin/Repetier) for this setup? From the google code groups, I understand the Repetier has a much cleaner code base, and apparently gives smoother physical performance. Yet, from what I can gather, 95% of the community uses Marlin - is that correct?

Given that this printer will have the Pi3 to control "higher functions", is it worth considering a compact firmware like Teacup?

Edit 12/April/2017:

For others looking: After much review, Klipper was selected as the most forward firmware - all kinematic calculations are done on the host computer, instead of on the microprocessor, resulting is significantly faster/smoother stepper movement.

We are custom building a cartesian 3D printer to be used in a production 3-d printing environment.

Intended Z resolution 0.13mm, duel extruders (primary+support material), 4 spools (two per material with y connector, perhaps add auto switch-over functionality later), camera. Onboard 11" touchscreen for control & interaction, run by Rasberry Pi 3, have a custom board based on ATmega2560 to control the printer. Printer should gracefully handle conditions like "out of material" etc.

Question: How to select Firmware?

Are there notable differences between the primary firmware options (Marlin/Repetier) for this setup? From the google code groups, I understand the Repetier has a much cleaner code base, and apparently gives smoother physical performance. Yet, from what I can gather, 95% of the community uses Marlin - is that correct?

Given that this printer will have the Pi3 to control "higher functions", is it worth considering a compact firmware like Teacup?

Thankyou.

We are custom building a Cartesian 3D printer to be used in a production 3D printing environment, with the following requirements:

• Intended Z resolution 0.13mm;
• Dual extruders (primary + support material);
• Four spools (two per material with y connector, perhaps add auto switch-over functionality later);
• Camera;
• Onboard 11" touchscreen for control & interaction, run by a Raspberry Pi 3;
• Custom board based on ATMega2560 to control the printer;
• Printer should gracefully handle conditions like "out of material", etc.

Question: How to select firmware?

Are there notable differences between the primary firmware options (Marlin/Repetier) for this setup? From the google code groups, I understand the Repetier has a much cleaner code base, and apparently gives smoother physical performance. Yet, from what I can gather, 95% of the community uses Marlin - is that correct?

Given that this printer will have the Pi3 to control "higher functions", is it worth considering a compact firmware like Teacup?

We are custom building a new 3D printer, intended to be high end. Printer controller board is custom, based on an ATmega. We will also have a Raspberry Pi 3 on-board to control the whole printer itself.

Question: Does anyone have any advice or recommendation on firmware selection, e.g., Marlin vs Repetier vs Teacup, etc?

Standard Goals: Good speed, good resolution, reliable, etc.

We are custom building a cartesian 3D printer to be used in a production 3-d printing environment.

Intended Z resolution 0.13mm, duel extruders (primary+support material), 4 spools (two per material with y connector, perhaps add auto switch-over functionality later), camera. Onboard 11" touchscreen for control & interaction, run by Rasberry Pi 3, have a custom board based on ATmega2560 to control the printer. Printer should gracefully handle conditions like "out of material" etc.

Question: How to select Firmware?

Are there notable differences between the primary firmware options (Marlin/Repetier) for this setup? From the google code groups, I understand the Repetier has a much cleaner code base, and apparently gives smoother physical performance. Yet, from what I can gather, 95% of the community uses Marlin - is that correct?

Given that this printer will have the Pi3 to control "higher functions", is it worth considering a compact firmware like Teacup?

Thankyou.