machinations

Hi, I'm Max.

here are the pieces of my final project (foreshadowing):

component: Talbot Interferometer

system: Laser Microjet

week 6 updates

here are some updates for week 6

components that you can use

This would be a monolithically machined XY positioning stage with a ~15mm x 15mm travel range for rapid and precise positioning of small samples.

Purpose: to provide a very simple to fabricate and low-cost stage for low-stroke applications.

Specs:

  • Resolution: theoretically infinite with no backlash! limited by your actuator / encoder.
  • Price: with commercial voice coil actuators, maybe ~$100s? with homemade voice coils, <$100.
  • Size / Weight / Power: prototype will probably consume 15cm x 15cm x 2cm + room for harnessing; <1kg, <100W. max load <10kg
  • Fabrication Complexity: the stage itself would be a very quick waterjet / EDM job; with home-made linear motors, fabrication gets slightly more complex but with a good coil winder not substantially so.
  • Interface: control would be performed using analog current drivers (perhaps closed loop with some ADC to measure a Hall effect sensor)

I have a (wip) Cadquery script that takes as input a planar CAD model and creates a 3D printable kinematic mount for said model

see some details on how this works here

I have a very powerful fiber laser that we can use for a variety of projects

It can run at up to 60W average power (anywhere from CW to 1ns pulses at 2mJ)

I am working on developing an easier-to-fabricate version of this nanopositioner

Specs:

  • Resolution: 10nm open-loop
  • Price: $650 including drivers (no encoders)
  • Size / Weight / Power: arbitrary (modular) work envelope; less than 5kg, can carry more than 10kg; less than 100W
  • Fabrication Complexity: chassis requires machining; everything else is plug and play
  • Interface: control would be performed using some sort of DAC / signal gen

help that I need

I want really, really small tubular linear motors for high-bandwidth electromechanical optical alignment

see: kinematic mounts, XY flexure

I want to build a laser microjet

I would like some help figuring out the optomechanics and fluid handling here

systems I am building

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