Delta Stage Microscope


Build a Delta Stage

A guide to printing and assembling an OpenFlexure Delta Stage

Install the Software

Prepare your Raspberry Pi by installing Raspbian-OpenFlexure

Use your Delta Stage

Download and install software to control your delta stagemicroscope

OpenFlexure Delta Stage

The microscope works nicely for simple microscopy, with 12mm lateral travel and 4mm travel in the focus direction. However, the optics module moves - that’s less than ideal if you want to use more complicated optics than just bright field. The block stage has a single stage that moves in X, Y, and Z, but it’s really just designed for fine motion - its 2mm range is less than we’d like for microscopy. The delta stage aims to solve this, by moving the sample in 3D with a mechanism very similar to the microscope’s. That should allow it to get similar range of travel, but with totally static optics. We strongly suspect there will also be other fun things to do with it that don’t involve microscopes at all.

Where can I find it?

The current version of the delta stage lives on our Gitlab repository. You can download the STL files from our build server but first take a look at the assembly instructions as you do not need to print every part.

If you use the delta stage, please send us a merge request with your assembly photos! It’s not yet described in any papers from our group - but it has already popped up in Scientific Reports and Lab on the Cheap in some very nice work by the Cambridge Sensors CDT students on an Optical Projection Tomography system.