Julien :ve: š:python: on Nostr: I designed and 3D printed new mirror clips and an aperture mask for my 6" Newtonian ...
I designed and 3D printed new mirror clips and an aperture mask for my 6" Newtonian telescope to reduce the uneven diffraction around bright stars and improve overall image sharpness.
The original clips that came with the mirror cell are narrow and protrude a good 7-8 mm into the mirror surface. Making an aperture mask to fully cover those clips would significantly reduce the mirror area.
The new clips are wider but only protrude about 2mm into the mirror surface. The aperture of the mask is not perfectly round to I minimize the amount of mirror area lost while the slight out of roundness will be imperceptible to the eye. The mask also doubles as a link between the clips stiffening the whole assembly.
#astronomy #astrophotography #telescope #optics #3dPrinting #design
Published at
2024-01-06 15:37:06Event JSON
{
"id": "5ba60cd2b631f5a58a8ec9e0ffbe6b0625445bd1f4caf50db0c9a7466495ff4b",
"pubkey": "a069750adc57e58abe7e43566e3922a3f017d9ae0759601e844ff091a02a6a63",
"created_at": 1704555426,
"kind": 1,
"tags": [
[
"t",
"astronomy"
],
[
"t",
"astrophotography"
],
[
"t",
"telescope"
],
[
"t",
"optics"
],
[
"t",
"3dprinting"
],
[
"t",
"Design"
],
[
"proxy",
"https://techhub.social/users/jdlbt/statuses/111709744403226183",
"activitypub"
]
],
"content": "I designed and 3D printed new mirror clips and an aperture mask for my 6\" Newtonian telescope to reduce the uneven diffraction around bright stars and improve overall image sharpness.\n\nThe original clips that came with the mirror cell are narrow and protrude a good 7-8 mm into the mirror surface. Making an aperture mask to fully cover those clips would significantly reduce the mirror area.\n\nThe new clips are wider but only protrude about 2mm into the mirror surface. The aperture of the mask is not perfectly round to I minimize the amount of mirror area lost while the slight out of roundness will be imperceptible to the eye. The mask also doubles as a link between the clips stiffening the whole assembly.\n\n#astronomy #astrophotography #telescope #optics #3dPrinting #design\n\nhttps://files.techhub.social/media_attachments/files/111/709/736/992/959/259/original/925214b15a3320a7.png\n\nhttps://files.techhub.social/media_attachments/files/111/709/738/007/339/274/original/7f135154df6355c3.jpg\n\nhttps://files.techhub.social/media_attachments/files/111/709/738/010/054/627/original/dd2247c81efd42e8.jpg\n\nhttps://files.techhub.social/media_attachments/files/111/709/738/023/152/655/original/680af17ad51041ef.jpg",
"sig": "07af8b43a1c67e926cf85b004d960d434a1909fd239391dc2d6d100b5213647aed8f3e29a2cac5e8be17d4d5d5ea2dceddb32b5bfa71cb84a3a72385b2b1095e"
}