# C-mount (RPi HQ camera) to M39 (Componon-S f2.8) extension tube for 3D printing **URL:** \ **Category:** Machine Design\ **Created:** [January 1, 2024, 1:50pm UTC](https://forums.kinograph.cc/t/c-mount-rpi-hq-camera-to-m39-componon-s-f2-8-extension-tube-for-3d-printing/2679 "2024-01-01T13:50:31Z")\ **Posts on this page:** 1\ **Showing post:** 7
**Author:** ![PM490](https://forums.kinograph.cc/user_avatar/forums.kinograph.cc/pm490/32/3176_2.png) [@PM490](https://forums.kinograph.cc/u/PM490)\ **Post date:** [January 2, 2024, 9:54pm UTC](https://forums.kinograph.cc/t/c-mount-rpi-hq-camera-to-m39-componon-s-f2-8-extension-tube-for-3d-printing/2679/7 "2024-01-02T21:54:17Z")
Welcome to the forum, and thank you for sharing this design and ideas. In general, I share the views that tubes are available and why complicate life with 3D printing it. Also share the view that some of these are a bit overpriced. My solution was to keep the tube in T2 (using M42 to T2 adapters), and buy the T2 extensions that are a bit more affordable. I do not have a 3D printer, and what I have designed was printed commercially with machines that have greater capabilities than your typical home printer. With this disclosure, and my very limited 3D printing experience, I would like to offer a couple of suggestions. - A thicker wall may be needed to avoid deformation in the long tube, and to support the arm of the lens x tube length. If this is already considered in your design simply disregard, again, my hands on printing experience is limited. - A typical problem of the HQ sensor and long tube requirement, is a good stable support for the assembly, including rotating the sensor 90 degrees for best use of the pixel-to-frame ratio. I [posted pictures](https://forums.kinograph.cc/t/snailscantoo-or-2/2548/45) of an aluminum bracket to mount the sensor and support the tube. If one were to take the trouble of printing the tube assembly, it would be good to design/include means for supporting it (a provision for a good bracket?). Hope this helps. --- _[View the full topic](https://forums.kinograph.cc/t/c-mount-rpi-hq-camera-to-m39-componon-s-f2-8-extension-tube-for-3d-printing/2679)._