In the best tradition of Louis Sullivan's maxim "form follows function", Christian's
UVEX3 is in there somewhere!
It's printed in PETG+C, fitted with the prescribed Thorlab optics using a spare 600 l/mm
grating and with an Alpy airslit disc. I'll change that to the standard Alpy slit later.
It was very straighforward to print and setup following Christian's instructions. A bit fiddly perhaps!
I've shown the UVEX3 inverted to better explain the add-ons.
There's a screw adjuster for the grating lever. It's quite coarse at the moment but better than
the lever on its own and I have a micrometer to add later.
I've added a guider (16mm mirror and 17mm diameter 30mm focal length lens (stopped to 12mm),
a guide image is attached using a DSI3 (the same chip as an Atik314L or SXVH9).
I've built a 'calibration unit' using an OAG with the prism reversed and adjusted so that the prism
sits central in the light cone when manually dropped into place. The power source is a miniture
circuit that can generate 600V+ from a 9V battery driving a halogen for flats and a "different"
Relco type bulb, picture attached. That attached plot is using the two bulbs with identical exposure times.
The bulb is a little larger than the 'standard' Relco and is Argon only.
The UVEX3 works very well on the bench but the weather here is miserable and I haven't been able to commission
the spectroscope yet.
(Thank you for this spectroscope Christian.
Onwards and upwards!
Tony.
- The complete unit
- The 'large' relco bulb.
- Calibration plot
- BigRelco.jpg (145.69 KiB) Viewed 3831 times
- Guiderscale