Free Download: 3d-printed FlipMirror II Mirror Holder
Update: We are pleased that the Baader FlipMirror II Star Diagonal
(#2458055 , € 228)
is so well received and inspires some customers to dream about what else would be possible. Since we ourselves cannot realize all the different constellations from partially transparent to dichroic mirrors, we have decided to publish the mirror holders that we install in the FlipMirror II. This way, our customers and users can 3D print the holders themselves and then try out any mirror type and shape. We are looking forward to your results and experience reports!
Below is the download link (which will only work when you're logged in). Please also note the information below about the Creative Commons License.
The file is optimized for printers according to the FDM procedure. Ideal would be a heated pressure bed. Material with little warping or heated space. Preferably PLA. As a primer we recommend Bluetape.




The download file is licensed under the Creative Commons Lizenz CC BY-NC-SA 4.0. You may pass on the file under Attribution© Baader Planetarium GmbH as well as linking the license and indicating any changes. The file may not be used for commercial purposes. If the file is changed, it must be redistributed under the same license.
Free Download: 3d-printed Flip-Mirror adapter for DADOS calibration lamp
The Baader FlipMirror II Star Diagonal (#2458055 , € 228) lets you the possibility to use a telescope visually and at the same time leave an instrument like a camera or a spectrograph permanently installed. As a third, lower port, it therefore offers a connection option either for an off-axis/autoguider via the Off Axis Guider for Baader FlipMirror II (BFM-OAG) (#2956951 , € 122) or for a dedicated calibration lamp. To guide the light of the calibration lamp to the sensor, the FlipMirror is also mirrored on the back side.

More information about Spectroscopy with the Baader FlipMirror II can be found in our blog series: Using the Baader FlipMirror II Star Diagonal (BFM II) at the Telescope
Our popular DADOS Slit – Spectrograph (#2458550 , € 2360) can be operated with the FlipMirror, too to easily switch between visual observation/centering or setting the object and its spectroscopic measurement.
The optional DADOS: Baader Calibration lamp (#2458590 , € 32) is designed to be plugged into the 2" nosepieces of the DADOS to take a comparison spectrum when the DADOS is not connected to the telescope.
When the Schülerforschungszentrum Lörrach with the observatory Gersbach approached us with the idea to connect the calibration lamp of the DADOS to the BFM-II, however, we did not yet have a suitable adapter on offer. 3D printing offered a quick solution: An adapter was quickly constructed that could be screwed onto the FlipMirror. The neon calibration lamp is then inserted into the adapter in a light-tight manner.
The adapter has already proven itself in use, and we are happy to provide the print file to the spectroscopy community for free! We offer the STL files for free download. All you have to do is log in or register on our website with your customer account.
Below is the download link (which will only work when you're logged in). Please also note the information below about the Creative Commons License.
The file is optimized for printers according to the FDM procedure. Ideal would be a heated pressure bed. Material with little warping or heated space. Preferably PLA. As a primer we recommend Bluetape.




The download file is licensed under the Creative Commons Lizenz CC BY-NC-SA 4.0. You may pass on the file under Attribution© Baader Planetarium GmbH as well as linking the license and indicating any changes. The file may not be used for commercial purposes. If the file is changed, it must be redistributed under the same license.
Please note

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- Unfortunately we do not have the capacity to produce these adapters in large numbers in our production. In turn, producing individual pieces would be too expensive. We therefore regret that we have to reject requests to print this adapters in our facilities.
- If you have a 3D printer, you can print the .STL file directly
- If you do not have a 3D printer and are still interested in this adapter, you can contact a 3D printer service. Numerous providers can be found online - or maybe you already have a 3D printing company you trust?
- If you have problems or questions about the file, you can of course contact us at any time
I have a 3D printer with 300x300x400 printing size.
I already printed your lamp adapter using ABS with proper devices (heated plate and special glue) and part was perfect without any warping or other distortion.
If anybody is looking for this part printed I can do it, just contact me at my address.
Regards.