ESR

ESR - Engine, Standard Resolution

The ESR is our leading unenclosed desktop printer.

History

• The Engine was introduced during our KickStarter campaign with five different configurations:
  • E1 Tinkerer: one filament head, no heated bed, no computer
  • E2 Hobbyist: one filament head, heated bed, no computer
  • E3 Apprentice: one filament head, heated bed, computer
  • E4 Journeyman: two filament heads, heated bed, computer
  • E5 Professional: four filament heads, heated bed, computer
• The Engine after the KickStarter campaign, like all of our printers, comes with one MK1-250 filament head.
• With the introducion in 2018 of the EHR (Engine, High Resolution), the Engine was redesignated ESR: Engine, Standard Resolution
• The ESR v2 was introduced in 2021, and comes with better motors with closed-loop feedback and quieter operation. CE marked units are available upon request.

Technical Data

Technical specifications and accessory compatibility for printers currently shipping are detailed in the comparison chart on the Printer Overview page.

Adjustments

Adjustments

Metric	Units	During Slicing	In G-Code Editor	GUI During Build
Speed of Travel	mm/min	yes	yes	no
Layer Thickness	mm	yes	no	no
Flow Rate	nL/sec	yes	yes	yes
Extruder Temperature	°C	yes	yes	yes
Fan Speed	% of max	yes	yes	yes
HotBed	°C	yes	yes	yes

For reference, the initial Engine configurations were as follows:

OLD Engine Model Comparison - DISCONTINUED

Model	E1 Tinkerer DISCONTINUED	E2 Hobbyist DISCONTINUED	E3 Apprentice SEE Engine SR	E4 Journeyman DISCONTINUED	E5 Professional DISCONTINUED
Heated Build Platform	no	yes	yes	yes	yes
Integrated PC & Touchscreen or Tablet PC	no	no	yes	yes	yes
Initial Heads	1	1	1	2	4
Maximum Heads	4	4	4	4	4