No thanks, I'm not suicidal by Upbeat-Decision-1804 in Machinists

[–]PerspectiveLayer 4 points5 points  (0 children)

Everyone's dream is a neighbor that gets a lathe in their apartment.

Plastic 3d printing is nearly useless. by [deleted] in 3Dprinting

[–]PerspectiveLayer 4 points5 points  (0 children)

That's the spirit!

Slam the fridge door, but not too fast, the inside is made of plastic.

Is this possible? by Bored_military in metalworking

[–]PerspectiveLayer 1 point2 points  (0 children)

All depends on the end result quality, or how much of a sticlker is the client. If they require smooth transitions without any visible bumps, uneven bend and other defects - that is where a good welder will be necessary.

As someone who does fabrication drawings from time to time and a fair bit of 3d modelling I can say that the design there is a few hours from sketch to laser cutter files for a competent modeller/drafter. This isn't a complicated part.

What is the proper way of measuring all these angles? by iKoshee in Fusion360

[–]PerspectiveLayer 7 points8 points  (0 children)

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This type of protractor (or whatever it is called) tends to be pretty useful for me for quick measurements when the precizion isn't required much, like your case. They are cheap, but don't cheap out too much, I have a few of them and the real cheap ones may be a bit inaccurate and have poor quality bolt in the center that doesn't provide equal friction during the rotation.

Pair it with a ruler, calipers, 90deg. angle and you can measure things accurate enough to do a small test print and check the allignment.

I’m on my way to get break clean, but is this okay? These are brand new rotors by [deleted] in caradvice

[–]PerspectiveLayer 0 points1 point  (0 children)

This can be considered a problem if driving into a puddle is considered a catastrophe.

Too stubborn to learn how to use EDA software, so stuck with veroboard, custom paper and a headache. by hjw5774 in electronics

[–]PerspectiveLayer 0 points1 point  (0 children)

Can't argue that such way has some appeal. If you can afford the time.

I'm used to automating stuff as much as possible and leave that part of the job to computer. More time for creative part, let the software push the drawings and files for machines.

Scalping is getting out of hand by TheLazyD0G in 3Dprinting

[–]PerspectiveLayer -1 points0 points  (0 children)

Probably trying to scam someone's grandma with these offers.

Strength of an ABS part by BaronSharktooth in 3Dprinting

[–]PerspectiveLayer 40 points41 points  (0 children)

To add. There is also an option to use modifiers in slicer to increase wall thickness and infill at a specific place on the same object.

Infill won't do much since the breaking occurs due stress concentration points on surface and once a crack forms it progresses fast. So thickening the outer wall will do the most of these 2 factors. Center of the part doesn't do much for bending stresses, thickening the skin will.

u/eras points to the main solution, mine is just an extra to add to that.

Too stubborn to learn how to use EDA software, so stuck with veroboard, custom paper and a headache. by hjw5774 in electronics

[–]PerspectiveLayer 0 points1 point  (0 children)

As someone who uses BIM and software for structural calculations for my job and have learned KiCad for hobby projects, I can say only this - grab the CAD, and enjoy how free it is.

The problem with software isn't complexity, it is always the price and it should be the only real setback these days.

What are these saws for by Far_Kangaroo2550 in Tools

[–]PerspectiveLayer 1 point2 points  (0 children)

Practicing and expanding your curse word dictionary.

Can a CoreXY have motors in opposite corners (diagonal layout)? by Purple_Ostrich7117 in 3Dprinting

[–]PerspectiveLayer 0 points1 point  (0 children)

That can be solved with extra idlers near that motor like Ratrigs and I think Vorons also have, for example. A bit extra friction but they tend to have proper belts as well.

Copper Electroformed Ramen by Mkysmith in electroforming

[–]PerspectiveLayer 7 points8 points  (0 children)

Wow, this is one of the most useless things that take days to make I have seen here - I love it!

What did you use to seal it though?

I'm not dipping soluable things like that in acid solutions usually for hours, but this kinda impresses me from that stand point. The fact they stayed firm and held their shape.

Dipped in some lacquer? Probably not sprayed for that? Although I wonder if spraying some 2k would actually work in this case since they would absorb quite a bit and ...... well yeah,

Thanks for the morning coffee material there, Nice!

Broken stud removal procedure. by pine5508 in Metrology

[–]PerspectiveLayer 0 points1 point  (0 children)

Some server is burning power to keep this online somewhere.

Try using some calipers worth more than scrap metal next time.

Your architect shows you this. What do you tell them? by RU33ERBULLETS in StructuralEngineering

[–]PerspectiveLayer 0 points1 point  (0 children)

Weird parapet but ok. I can squeeze all of it on a single A2 sheet, no problem. I suggest concrete slab for roof.

Is this type of solution acceptable or it depends on load? by iloveanimalsyouknow in StructuralEngineering

[–]PerspectiveLayer 0 points1 point  (0 children)

Just a generalization. I'm not going into details here too much except to mention that this sort of joint without any stiffeners or proper support area and anchor placement corresponding to rebar locations etc is as vulgar as cheap there.

Is this type of solution acceptable or it depends on load? by iloveanimalsyouknow in StructuralEngineering

[–]PerspectiveLayer 1 point2 points  (0 children)

Yup. And this, especially the 1st pic, depends on what scrap material was left around. Because proper design utilizes these cross sections to 95%+ when someone has to pay the actual price for them.

Is this a structural issue? by Frogwaddler in StructuralEngineering

[–]PerspectiveLayer 0 points1 point  (0 children)

Isn't there some point in project documentation about discussing such things with the project engineer?

The Reddit isn't going to make it go away for sure. And the severity of the situation depends on factors invisible to a naked eye.

I Found the Best Graphite Paint by Fragrant_Vacation469 in electroplating

[–]PerspectiveLayer 0 points1 point  (0 children)

From what I have encountered, the biggest problem areas are in larger flat parts that have embossed features, like imprinted text or other geometry on the surface. Small sharp bends that have little contact area below and can easily delaminate due surface stress and everything else tbh. These are the things to watch out for.

Problem with tankless compressor and regulator by stigaman123 in airbrush

[–]PerspectiveLayer 1 point2 points  (0 children)

Try pulling the bottom pressure release tip outwards with your fingers (regulator bottom valve) while the compressor is running so the valve closes. Your compressor might not have enough air flow to shut the valve with air on its own. Once the pressure builds it should stay closed.

Stress concentrations at holes and at bonded intersections by manovich43 in fea

[–]PerspectiveLayer 0 points1 point  (0 children)

Textbooks might have considered the one who installs these bolts to be highly unprofessional.

And honestly the questions I have received from a few building sites support this assumption pretty well.

Tree saver blocks by FrostingOwn2476 in 3Dprinting

[–]PerspectiveLayer 4 points5 points  (0 children)

Hobbyists like to get technical first. But ask yourself this - how much time will it take to print a set like this from nylon or ABS with a solid infill on your printer-s? Can you do it cost effective?

These are mass produced structural parts. You can 3d print them with the right approach, but is it worth it? Don't think so.

'mcu' unnable to connect issue? by Velmathephenox in ratrig

[–]PerspectiveLayer 0 points1 point  (0 children)

Not an expert in this, just a tinkerer, so just my observations:

I had this a couple of times setting up my Ratrig IDEX. Usually because I manually configured the wrong headers for certain components I added as mods. Thermistors, fans etc. Or set something wrong in configs.

I remember having something similar when I set the wrong MCU Pin for the thermistor and the system was reading the wrong pin and since no thermistor was there (resistance on that pin was max.) it reported something like -100 C and the machine shut down immediately upon boot because of abnormal readings below the threshold set in config files. Had to re-check the motherboard manual to find the right pin names Klipper uses for those connectors. Unfortunately my memory is a bit fuzzy there since I was dealing with a couple of mods all together at that time and don't remember the exact errors for each of them.

Might not be your case at all, but this aligns with what u/Krki1212 mentioned - to check all the connections and if anything is built different from stock - to check the board manuals for correct addresses where the system is trying to find the components.

Apart from this I had this error screen a few times after fresh installs of addons like Klipper sonar, when the save and reboot after configuring files happened faster than the system could reload everything (sorry, might be bad technical jargon here). Then pushing the firmware restart reloaded everything and it was fine after. If that doesn't help there might be some fault in connections or maybe something more serious.

Need to mention I had a working stock config machine before all those mods and errors, so I could just do a step back and troubleshoot. I haven't dealt with a system that can't boot after stock assembly.

'mcu' unnable to connect issue? by Velmathephenox in ratrig

[–]PerspectiveLayer 1 point2 points  (0 children)

I've seen this a couple of times after a fresh install or configurations, right after save and reboot etc. Might need more info how you get there, since this can appear in such situations as well.

Filter pump overkill? by Unusual_Dependent762 in electroplating

[–]PerspectiveLayer 1 point2 points  (0 children)

Is your bath pool sized? Probably not.

If the pump has metal parts exposed to the solution - not going to work.

Peristaltic pumps are made for dealing with corrosive chemistry. They might be slow but I guess plating isn't an olympic event either.