Skip to content

Piero Bosio Social Web Site Personale Logo Fediverso

Social Forum federato con il resto del mondo. Non contano le istanze, contano le persone

The people who really run organizations are usually found several levels down, where it is still possible to get things done.'nTerry Pratchett, Small Gods'n#GNUTerryPratchett, #SpeakHisName, #Discworld

Uncategorized
1 1 5

Gli ultimi otto messaggi ricevuti dalla Federazione
Post suggeriti
  • I Fucking Love Utils

    Uncategorized
    1
    0 Votes
    1 Posts
    0 Views
    I Fucking Love Utils
  • 0 Votes
    1 Posts
    0 Views
    3D Printing a Telescope is Rewarding, Even if Not Always CheaperWhat can one expect from 3D printing an 8″ Newtonian telescope? [Molly Wakeling] shares her thoughts after doing exactly that. The performance was on par with any solid 8″ telescope, but in the end it wasn’t really any cheaper than purchasing a manufactured unit. Does that mean it wasn’t worth it? Not at all![Molly] makes the excellent observation that the process of printing and building one’s own telescope is highly educational and rewarding. Also, the end result is modular, user-serviceable, and customizable in a way that many commercial offerings can only dream of. It’s a great conversation starter with other enthusiasts, as well![Molly] printed the 203 Leavitt design (3d models available on Printables) which is an 8″ Newtonian telescope. This telescope design uses a concave parabolic mirror (a significant part of the expense) at the back of the tube to gather and focus light, and a small flat mirror near the front of the tube reflects this light to an eyepiece on the side. The wood stand makes things convenient, and we like the elastic tie-down used as a simple way to put tension on the mounts.Do you find yourself intrigued but would prefer to start a little smaller and cheaper? Good news, because the same designer of the 203 Leavitt has a very similar design we happen to have featured before: the 114 Hadley. It features easily obtainable, lower-cost optics which perform well and can be easily ordered online, making it a great DIY starter telescope.hackaday.com/2025/12/29/3d-pri…
  • 0 Votes
    2 Posts
    0 Views
    @LaVisch 👏
  • 0 Votes
    1 Posts
    13 Views
    Terry Pratchett’s on Tolkien’s influence on fantasy:J.R.R. Tolkien has become a sort of mountain, appearing in all subsequent fantasy in the way that Mt. Fuji appears so often in Japanese prints. Sometimes it’s big and up close. Sometimes it’s a shape on the horizon. Sometimes it’s not there at all, which means that the artist either has made a deliberate decision against the mountain, which is interesting in itself, or is in fact standing on Mt. Fuji.#ttrpg #discworld #pratchett #books