Thread 2938572

> rapid prototyping becomes widely adopted

>instead of human society crowdsourcing engineering as a whole solving unique problems

>99.9% of humans decide to not learn CAD

> of the people that do learn CAD, they don’t learn to design properly and use slicers and 3d printing properties to be lazy on the design

> most resort to being a consumer of materials and printers and other people’s designs

> trade fiat currency for this crap

Slinky dragon go brrrrrrrrrrr its so slinky

>>2938572 (OP)
People are lazy AND stupid? No way! This is a groundbreaking revalation!

sorry to burst your bubble OP but people used CAD long before additive manufacturing was widely adopted
>use slicers
OP I do not believe you when you tell me you handwrite your optimal GCode for printing complex parts, you probably don't even review it in full you larping spastic

>>2938588
I’m a machinist by trade, you think I don’t read through the gcode?

>>2938593
>machinist
>muh gcode
all you need is a double digit IQ to "learn" gcode.
no wonder cnc "operators" make less than a barista

>>2938593
tripfag moved the goalpost
just a few days ago I remember you posting something that made you look similarly clueless as this thread

>>2938600
Clueless? About what? My designs are used in the American manufacturing segment

Some 3d printed final products, some were 3d printed rapid prototypes that helped me on design revisions with input from the various maintenance technicians and machine riggers and millwrights they were designed to make their jobs and lives easier

>>2938601
about machining manufacturing and technology in general

>>2938572 (OP)
malding

>>2938602
lol

>y-yeah I totally review the gcode
dumbest shit I've ever heard. What do you think you're gonna get out of reading generated gcode? If you want to understand the gcode you either have to write it yourself or spend longer than it would have taken to write it yourself to figure out what hundreds of lines of uncommented generated shit is doing
I'm guessing what you mean is you look at the output and go
>hyup, that's gcode
>I'm so smart for knowing what gcode is

>>2938656
> I can’t read gcode so I’ll accuse everyone else of not knowing it

I add pauses for color changes or adding hardware or magnets or lead fishing weights as needed

> no you don’t that’s not possible !!!

> h-how do you even make your own designs that are t from Thingiverse?!

While the tone of this thread rustles my jimmies and OP is naturally a fag I can't help but agree that 99% of 3d printers and the container ship loads of filament that's consumed every year go towards nothing but useless trinkets and plastic landfill.

>>2938661
>look for comment saying layer number 27
>copy-paste g-code after comment
wow congrats, you went the long way around for no benefit, compared to inserting colour-change g-code via slicer

i agree with your core point, too much goyslop and not enough grassroots engineering, but g-code interpreters and cad and slicers are all just tools, and the more people doing anything with 3d printers the more people we get working on improving the tools
they do things well to various extents, what you get out is up to the user
the slicer is where the a lot of advances are lately, like scarf seams and brick layers, and it’s also where non-planar slicing will come from

>>2938572 (OP)
>Try to learn CAD.
>Every single CAD program is an unusable mess without a dedicated class (which costs money and time I don't have) to translate the local lingo.
>Stop trying to learn CAD and just continue on with other diy skills.

Gee, I wonder why no one learns this specific cross between coding and parts design that has its own specific in-house lingo that almost no one translates outside of a paid (usually college) course.

>>2938671
freeCAD uses python, works out the box and is intuitive to use

>>2938672
Cool.
What the fuck is a bulleon.

>>2938661
being able to read g code isn't the flex you think it is buddy. can you tie your shoes too? how about you tell us all about it

>>2938669
>G-code interpreters

bro just read the gcode no program needed

>>2938673
It's for joining two solid bodies together, or cutting one with another (usually called the tool body)

>>2938673
>bulleon
Anon... I...
go catch up on your education

>>2938676
nah it's just that slicery produce very bad and unreadable code, even then they have repeating layers, repeating patterns, so. many simple things like infill could easily be expressed as nested loops with 2 variables and all that.
But I mean that tripfag moves the goalpost yet again and went very quickly from a code rreview to
'I find layer and M0 -hurr'

>>2938684
code is perfectly readable

formatting is a litttle off but you can tell what its doign

>>2938688
you're unfortunately continueing to make your lack of knowledge and experience show. Thats particularly bad for a tripfag.

>>2938572 (OP)
5% of white humans are smart enough to be engineers. 0.3% smart enough to be good ones.
Browns basically 0.
What the fuck makes you think "learning CAD" would enable someone to engineer?
It's like teaching someone how to sharpen a pencil and then expecting him to draw Picassos.
CAD is so basic and trivial they don't even teach you at uni, they just expect you pick it up yourself on the side next to the shitton of math you learn.

Fucking retards man.

>>2938705
This.
CAD is trivial. Also, normies might believe it but, CAD does not make you creative and CAD has no place in the development stage where ideas matter.
CAD is literally coding: A monkey job. A monkey job you have to do because how the world works and because you want it done now and right and dont want to explain your idea to a human who is hellbent on getting you wrong.
>Dont teach at uni.
At my uni they had CAD classes and some of them would even fulfill the requrements for a module you had to complete. Took them all anyways and wasn't disappointed desu. The only disappointement was the constant industry fags. You know, some industry rep shows up and gives them free keys for a package you'll never afford at home. I used all those courses to do everything reduntantly in freeCAD ans present it as an alternative.
>Fucking retards
ITT you even have a retard who claims he doesn't use slicers for his 3dp but then moves the goalpost to explain he reviews the slicers code only to kove the goalpost again and explan he finds layer N to inser M0.
What do you expect?

>>2938709
GD&T is taught in college.

I use slicers, i dont use slicers when i program cnc mills and lathes or mill turns

i can move the head around and jog the axis around on a 3d printer without a jog wheel its not hard

i can read a sliced file and see what it's trying to do...its not difficult

the fact that you think these claims are "crazy" just show that you're a consumer, down load and print etsy kid.

you can't even extrude a simple sketch, which is fucking pathetic

>>2938572 (OP)
None of that matters because their purchases provide economies of scale FOR ME.

>>2938705
^Wisdom.

>>2938823
^This too.

>>2938823
you didnt even get the point I was making, at the same time youre even forgetting the statements you yourself made
youre really beyond retarded and it still shows

>using a slicer
>not generating your gcode with an excel sheet
ngmi

>>2938874
>generating gcode with an excel sheet
>not manually sculpting by hand
ngmi

>>2938671
Dune3D if you’re too much of a brainlet for FreeCAD.

>>2938680
No I mean the firmware on the 3D printer that interprets the g-code and generates step/direction pulses.

>>2938874
Excel is even too fancy for me, I literally just type on notepad. It’s free… it’s better than google docs, better than Microsoft word


Plus I like notepad font more than times new Roman because sometimes when I get fog brained after typing code all day I sometimes slip in a goo instead of a g00 and notepad has find and replace

>>2938709
>CAD is trivial.
It is really hard for someone new to it. I was trying to model a 3.5" floppy disc.

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>>2939489
You okay friend?

>>2939482
what have you done
no it's not hard
I thibk your problem is just that of many others
you probably think of CAD as doing things for you that it wont
you have to do your own idea finding, thinking and planning. CAD just takes all that and represents it neatly. That's bo different for constraints. But also the approach as a whole. There is no point in trying to create a sketch containing every single festure of the finished product. Many such features are better created in seperate operations.

>>2938572 (OP)
i have a 3d printer. ive used it to print functional things that ive cad designed myself. mostly simple stuff like enclosures for electronics projects, an improved replacement knob on my air fry after the factory knob split in half, a few brushless dc motor mounts, etc.

3d printing is interesting but it kind of sucks. i want a cnc mill and lathe.

>>2939496
I watched videos on youtube to learn freecad, then I took a floppy and wrote on paper all the measurements. Finally I struggled using the software entering all these angles, measurements, while learning how to do constraints, etc. I still don't understand planes and extrusions. Gave up cause it was really hard for someone new and I spent a lot of time on it.

>>2939496
>There is no point in trying to create a sketch containing every single festure of the finished product.
This is confusing to me. I thought that is what you have to do. Multiple sketches that make up the finished product.

>>2939501
Well no. Also even if, that is still different from putting everything into one sketch.
Think of the floppy as a most basic shape. A cube. Make the cube, you dont even need a sketch for that. It has 3 rounded corners and one chamfer. There is tools for that. Use them. The chamfered corner seems to in turn have rounded edges. Same tool again. It appears there are circular holes and pockets. Make one or several sketches locating the holes. Use the hole tool on the sketches or features of the one sketch to make the holes. Make another sketch to create the pockets.
And so on.
In the end you might want to create several parts. Upper plastic, lower plastic, sheet metal (theres a workbench) and the disc.
You can then instantiate the parts in an assembly and constrain them. if you feel so inclined.

>>2939506
Oh I want to add: After you thought about your strategy. Make a. list of all. measurements. Give them variable names. You can have a list of variables and values in freeCAD. This will allow you to use variable names for your constraints. When you want to change something later or made a mistake you have a parametric model.
Look at how part design and part have different workflows. One is makes your model easier to break if you try to make changes to it later. For example if you attached a sketch or pulled external geometry and you change the base object the naming of a topological feature may change (like edge 10 is now edge 11) and break things building on it. Ofc you can then just manually edit all the names.

>>2939506
That sounds even more complicated than sketches. You see all the precise holes and things on that floppy. It isn't just some cube.

>>2939507
I saw this advice during watching all those hours of freecad youtube videos. Thought it wasn't needed for this project given it is one and done after it works.

>>2939512
It's just more steps, not more complicated. He's right though, that's the better way to do it because you can easily change things later. If you have every little fillet and hole in a single, defined sketch it can cause a lot of issues later on if you need to make minor adjustments. Like the notch in the bottom, mid-left of the drawing. If that's in the wrong place and you need to nudge it over, that's going to be a nightmare the way that it's currently drawn because it's going to change 20 other dimensions since they're all relative to each other. If it was its own, separate sketch on top of a solid body, you just reference it from one of the sides and you can move it wherever you want without fucking the entire model.

>>2939489
Literally all you need.
These gcode over slicers guys are missing the point. It's still bloat to be using gcode.

>>2938572 (OP)
goyslop printfarms should be burglarized

check out this impeller pump i whipped up in a few hours to replace the coolant pump on my cold cut saw

>>2938671
I learned fusion by dicking around with it when I was 14. It took me like a week. Stop being lazy and expecting to be spoonfed

ITT: anons who download everything off printables gatekeep CAD design & engineering like you actually need the $100,000 toyota camry to design a fucking shelf bracket

>>2938671
Onshape is decent, free, and runs in a browser.

>go to local ham radio/DIY electronics fair
>many stands sell parts or kits
>3D printer area
>don't sell any materials or printer parts
>only colorful pokeymons and other trinkets
We live in a society

When flying machines were first invented they were basically toys for rich people to play with.
Eventually they became integral.

Here is a poignant post I saw.

>>2939767
Don't say runs Ina browser like ita a positive.

>>2939924
>>go to local ham radio/DIY electronics fair
>>many stands sell parts or kits
>>3D printer area
>>don't sell any materials or printer parts
>doesn't see it as opportunity
>doesn't rent booth space to fill niche
>NGMI

>>2938671
>the local lingo
what the fuck is the lingo? extrusion? loft? these are not difficult concepts and most are represented as icons s.t. you don't even really need english as a first language. you might just be stupid.

>>2938673
boolean

>>2939500
>Gave up cause it was really hard for someone new and I spent a lot of time on it.

>>2939934
In terms of accessibility it is absolutely a positive to be able to access all my shit from different machines without needing to install different software. Plenty of other options if that bothers you

>>2938572 (OP)
The ole drag and drop. Many such cases.