Difference between revisions of "EHR"

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* The EHR v2 began shipping in January 2021, equipped with better motors with closed-loop feedback and quieter operation.  
 
* The EHR v2 began shipping in January 2021, equipped with better motors with closed-loop feedback and quieter operation.  
 
* As of June 2021, all units are CE marked.
 
* As of June 2021, all units are CE marked.
 +
* As of 2023, all units ship with MKS motor drivers.
  
 
== Internals ==
 
== Internals ==
  
Here is an explanation of the internal electronics of the EHR; click any images for larger versions:
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Here is an explanation of the internal electronics of the Hydra 21. '''Click any images for larger versions.'''
  
=== Controls Compartment ===
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To access the electronics, please follow the instructions at https://www.youtube.com/watch?v=Dlta7KSt3bE
  
The interior of the EHR holds the ATX Power Supply, the Tablet Interface Board, and the X, Y, and Z Axis controllers.
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{| border="1" class="wikitable" style="text-align: center"
 
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|-
[[File:ESR_Internals_2021.jpg|600px]]
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! Internal Circuitry
 
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! Tablet Interface Board<br>DC and Controls
=== Tablet Interface Board ===
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! Spine Board<br>DC and Controls on Older Models
 
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|-
Tablet Interface Board (with STM407 Motion Controller) has Internal and External Ports.
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! Current, 2023+
 
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| <gallery>File:Ehr_tib_2024.jpg</gallery>
The current board, circa 2021.
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| <gallery>File:Spine_2024.jpg</gallery>
 
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|-
[[File:16A_TIB_2021_L.jpg|600px]]
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! Current, Detailed
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| <gallery>File:TIB_noted_2024.jpg</gallery>
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| ''The EHR spine board only passes <br> current and signals between the <br> TIB and the Yoke and X-Arm.''
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|-
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! Older, Detailed
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| <gallery>File:16A_TIB_2021_L.jpg</gallery>
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| ''The EHR spine board only passes <br> current and signals between the <br> TIB and the Yoke and X-Arm.''
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|
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|-
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|}

Latest revision as of 17:59, 1 July 2025

The EHR is our High Resolution unenclosed printer designed for bioprinting on the desktop or inside of a fume hood.

EHR.png

Technical Data

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

History

All improvements introduced were implemented to the existing line, obsoleting previous versions (with no price increases):

  • The EHR was introduced in 2016, equipped with precision ball screws in all axes. It is able to print in wellplates and fits in most fume hoods.
  • We introduced sub-ambient (chilled) beds and syringe heads specifically for the EHR in 2020.
  • The EHR v2 began shipping in January 2021, equipped with better motors with closed-loop feedback and quieter operation.
  • As of June 2021, all units are CE marked.
  • As of 2023, all units ship with MKS motor drivers.

Internals

Here is an explanation of the internal electronics of the Hydra 21. Click any images for larger versions.

To access the electronics, please follow the instructions at https://www.youtube.com/watch?v=Dlta7KSt3bE

Internal Circuitry Tablet Interface Board
DC and Controls
Spine Board
DC and Controls on Older Models
Current, 2023+
Current, Detailed The EHR spine board only passes
current and signals between the
TIB and the Yoke and X-Arm.
Older, Detailed The EHR spine board only passes
current and signals between the
TIB and the Yoke and X-Arm.