Sounds like the eventual end. Will be learning how to take raw circler optical lenses. As the optical centres do. And build the tools for folks to shape them at home.

Such a project would be a huge advantage to many 3rd world environments. And would likely be about embedding quality glass cutting blades etc into 3d printed frames/mechanisms. Likely from PA. With the ability to embed metal rods and gears where stability, strength is needed.

It’s a guess ut I imagine the issue you have. Is most commercial opticians just see this as less option for them to sell overpriced frames. So agreeing to shape lenes for frames they dont sell. Is just a way to support the end of their profit line.

In the UK, when we started seeing the Chinese companies selling online glasses. We had lots of opticians refusing to give copies of the RX. Or limiting the positioning info they give. As all that part is NHS funded. Laws helped. But without legal force, companies ain’t going to help themselves lose business if it is obvious.

Pretty sure you will earn forgiveness for that pun.

Eventually

In the early days, all those types of film were sold in injection moulded clip on cap tube canisters.

But I shouldn’t be surprised that the small sales market today. Means no one is running a big factory selling the canisters. I only ever used 32mm. My brother did a little with larger format films, so I can ask if he has any canisters in the attic. If that helped at all. (measurement and design wise) Not sure what other help I can offer. But if you think of anything a guy from the times film was common can offer. Feel free.

Comon attitude among older techs. I imagine its a bit like gen z on phones.

Messaging seems immediate and demanding where as email seems to give the recipient a answer when you have time feel.

Its about not growing up with IM while email was treated like an extention to paper memo systems many work environments already used. More so as the system is older then the Internet. So many office networks had inter office email In the early 80s. And inter offfice memo systems like a little postal system were common in big companies for decades before that.

yeah, auto correct.

Only if those device makers are willing to use it. And that has always been the tightrope linux has walked.

Its very history as a x86 platform means it has needed to develop drivers where hardware providers did not care. So that code needed to run on closed hardware.

It was bloody rare in the early days that any manufacturer cared to help. And still today its a case of rare hardware that needs no non free firmware.

Free hardware is something I’ll support. But it is stallman et als fight not the linux kernel developers. They started out having to deal with patented hardware before any one cared.

proprietary

Well related to the owner is the very definition of proprietary. So as far as upstream vs not available for upstream is concerned. That is what the term is used for in linux.

So yep by its very definition while a manufacture is using a licence that other distributions cannot embed with their code. Marking it proprietary is how the linux kernal tree was designed to handle it.

EDIT: The confusion sorta comes from the whole history of IBM and the PC.

Huge amounts of PC hardware (and honestly all modern electronics) are protected by hardware patients. Its inbuilt into the very history of IBMs bios being reverse engineered in the 1980s.

So as Linux for all its huge hardware support base today. It was originally designed as a x86(IBM PC) compatible version of Unix.

As such when Stallman created GPL 3 in part as a way of trying to end hardware patients. Linux was forced to remain on GPL 2 simply because it is unable to exist under GPL 3 freedom orientated restrictions.

The proprietary title is not seen as an insult. But simply an indication that it is not in the control of the developers labelling it.

GPL3 has extra restrictions banning patients etc. So yeah a lot of GPL 2 code written by companies that open software but not hardware. Would have legal questions about running with GPL 3

GPL 3 was created to be more restrictive to non-open hardware.

I think I even used Windows XP wallpapers on Linux for some time.

Well now I suddenly care.

Why the hell do you want to watch the world burn?

;)

No bodies business but the user what wallpaper they like.

I use images from the UK canal inferstructure where I spend much of my time.

If you’re willing to tell me to do otherwise. My response is going to be short and rude.

cool. I agree with the self made.

Myself, my vision is now at the point glasses no longer help.

Chinese companies online will sell you real cheap glasses. With RX lenses. Like 10-15 a pair.

The frames are cheap crap. But the lenses normally adequate for anything not to specialised.

I find knoowingbthe basics helps.

I use blender. Its not perfect for 3d modeling. But I knew it a little to start. Also easy to set up on linux.

But honeatly learning its scale odds. (Defaults 1m to mm) boolean modifiers and 3d print tools. (Allow testing for real world models and extra faces.)

Really is all i need to modify stls and make my own sruff.

These are the desiccant containers I am printing now, in PETG. Less pretty, but I think they are more functional.

https://www.printables.com/model/50375-desiccant-silica-hygrometer-spool-container-modula

Ok So I now have the 3d printer up and working. ( yeah, slow for obvious reasons )

Pics below.

Basically, I’m printing stuff for the printer to gain skills. PVA to start, I printed a Bowden tube adapter. Mainly so I can run filament directly from the dryer when using hygroscopic stuff. https://www.printables.com/model/983043-elegoo-neptune-4-pro-bowden-tube-spool-holder-moun

Also, printer a few of these desiccant holders. But in PLA they seem to shatter easy when tightening the lid. So I’m printing another design in PETG ATM

I need to add a vent to the tent pefore trying to play with Nylon. So thats my next task. Just need to workout something.

Darktable

Desiccant is used a lot in boats. ( in the uk at least where damp is an issue )

But is a different way to 3d printers. It’s more about directing condensation.

My thought is to build desiccant holders to mount near the boat windows. (not sure your location if you dont know narrowboat, So ill describe the issue)

My boat was built in the 1970s so is currently single glazed. We plan to do a complete rebuild of the inside and the glazing. But poor again so time.

This design tends to mean condensation builds up hugely on the windows. As the whole design of a steel boat leads to temp differences and the UK has high humidity. More so at water level of course.

The issue is the condensation then runs down from the windows along the wooden panels inside the boat. Doing huge damage over the years. One of the big reason owning a boat is costly. There is constant maintainance and replacement work. Im good at the electrics. But my younger brother dose most of the woodwork.

A common solution is to have a desiccant container with a water catcher below it positioned near the windows. This effectively absorbs some of the humidity before in condensates on the windows. Then, as the Desiccant overloads, releases it into the catcher.

You then need to empty the catcher and replace/dry the desiccant often. And honestly, it still just reduces the issue.

You can buy holders to do his. Sold for boats and caravans etc. But honestly they tend to be a bit universal, so not actually very usable.

Part of me thinks I can design a 3 part system that can be mounted. Have a drip pipe leading directly to the bilge rather than running down the walls. Then have slot in desiccant units that can be carried home and back and microwaved as we swap over.

well, ill have the printer together tonight. Will likly print some petg experiments tonight/tomorrow. The some cable chains etc to get practice.

Sorta inpressed you remembered my dull questions at all.

Some corrections.

The boat and the workshop are separate. My brother and I share a 25ft x 6ft10inch narrowboat. We tend to travel over spring and summer swapping over as we move it around the UK.

The tiny area I scanned (not well) was the engine room as it is under tge rear deck so low down small and cannot like many boats be opened from the top.

Hence the need to measure things to layout access.

The workshop is in my 2 bed home. So less crowded.

It is cool that you remember the stuff. When the boat is done I’ll def share pics. But my mobility and costs mean its likely to be a year or 2 before all is done.