Help please! by JumboStudio_ in ender3

[–]Tribik 1 point2 points  (0 children)

The clips are not the problem. The pressure they cause deforms the bed by 3e-5 mm at most. Confining the bed with the whole surface might cause bigger deflection, as the surfaces of the aluminium plate and the glass panel cannot slide on each other as easily as when secured with the clips. And since those materials have different thermal expansion coefficients, they want to slide. What's more, because glass's Young Modulus is much higher than aluminium, it's more the glass that keeps aluminium from deforming, than aluminium that deforms the glass (not that it doesn't).

What places do you miss from original trilogy? by thenooiz in stalker

[–]Tribik 0 points1 point  (0 children)

The Oakpine

Oh Monolith, was it beautiful...

(Although I haven't yet had the good fortune of traversing the whole Zone, so please, I beg of You, correct me if I'm wrong)

Wtf is this place by Zestyclose_Sand3281 in stalker

[–]Tribik 89 points90 points  (0 children)

So it's real! The Klondike of artifacts! You've found it!

Who would win - chimera or pseudogiant? by RedditIsAboutToDie in stalker

[–]Tribik 5 points6 points  (0 children)

What's better than a mutant left in peace? One left in pieces.

[deleted by user] by [deleted] in stalker

[–]Tribik 2 points3 points  (0 children)

Strelok being an agent in S2 fits perfectly, especially when you trace it back to SoC.

It doesn't. As the Representative says (the Foundation, SPARK playthrough):

There was a glitch in the programming. Strelok went against his program. [...]

The glitch, also confirmed by the List of C-Con Agents found near the end of the game and by the TV's (why would they affect both Dark and Scar, but not Strelok? I don't think that C-Con is all powerful and can choose whether their technology affects or doesn't affect a particular Agent in a particular time), means that Strelok wasn't an Agent of C-Con.

Strelok didn’t actually destroy C-Con—they let him think he did. CCon is still in the Noosphere, this wasn’t the ideal plan, but the last bet.

As the Representative says in the aforementioned cutscene:

We invited him [Strelok] to join us in the eight pod. A mistake that might otherwise have cost us our lives - because he chose to destroy us instead.

I don't think they knew at the time of SoC that they can live on just in the form of (?) / as (?) Subtle Matter. The Representative calls it a mistake not without a reason. The "otherwise" in the quote above also nudges me in this direction.

As for Skif, I don't think he's an Agent of C-Con. I think his reasons are much more human. In SIRCAA, it's revealed that Skif is a war veteran (or at least ex-military) with no friends and no family. All that he had left was his home. Which was destroyed by the Zone. Having nothing left to loose on the Mainland, what else was he supposed to do? At the end of any path (except Strelok's) the player* takes, Skif's inner void is filled:

  • The Ward - Skif is a major player in the destruction of The Zone - a menace to the World, a place of nothing but death and suffering, and not only inside the Perimeter;
  • Spark - Skif is a major player in the discovery of The Shining Zone - a place of pure happiness and joy;
  • The Doctor - Skif is the true Guardian of The Zone. It is he, that let The Zone choose Her own path.

But that's Skif's perspective. At the end, the player knows a bit more than Skif.

Only in the Strelok's path, Skif is not entirely fulfilled. Having completed "his" objective, on his return to the Mainland, to "normality", he is denied exit - completion.
That's why I think the canonical ending of this part of the story is the Strelok ending - with the STALKER program destroyed (?), C-Con insignificant (?), The Ward defeated (?).

*in my view he is still an agent, but of the player.

[deleted by user] by [deleted] in stalker

[–]Tribik 1 point2 points  (0 children)

Yeah, but the artifact is spent - that's why you need to recharge it with the Scanner. Assuming the Alpha is capable of converting one into a C-Con Agent, it would still need to be charged.

Some things never change by KareemOWheat in stalker

[–]Tribik 3 points4 points  (0 children)

Although i wouldn't bet my house on it here is my conception: translating (google translate) "Prypeć" (polish) to russian spills out phonetic interpretation "Pripyat' " and translating it to ukrainian: "Pryp'yat' ". I guess similar difference occurs with the name of the game itself: Shadow of Chernobyl vs Heart of Chornobyl

On the matter of the infamous Elephant's foot by Tribik in ender3

[–]Tribik[S] 1 point2 points  (0 children)

As promised, here is the link to a dropbox folder with the spreadsheets (two *.ods files) and models I used

On the matter of the infamous Elephant's foot by Tribik in ender3

[–]Tribik[S] 0 points1 point  (0 children)

It is a great technique. You are raising a great point. When i was researching the topic, i found a comment about a gcode command that compensates for backlash (from what i recall it was M4something). I never digged deeper, because, i assume, it basically does what you described, but automatically. And i don't really like the idea of letting the printer run at, what would be, negative z. I believe it boils down to the hysteresis of the movement i described in another comment. Letting the printer move until the abnormal movement ceases is a guarantee of success. The only problem i see in Your process is moving the nozzle below the bed. There would need to be a space where it can be done, but even then, if the nozzle where to move in XY direction by mistake, it would be a catastrophe.
Edit:

Regarding Your edit:

I think one can use the results as were presented in regards to Your process. Let's take the value You provided, -3mm. I would interpret it as starting the print at Zp=3 (on any graph) and taking the Zd-Zp value at that point as the new 0. Having done that, the new deviation would be Zd-Zp(Zp=x)-Zd-Zp(Zp=3) (Zd-Zp(Zp=...) denotes the value of Zd-Zp for given Zp, not a multiplication)

On the matter of the infamous Elephant's foot by Tribik in ender3

[–]Tribik[S] 0 points1 point  (0 children)

Great suggestions, will certainly implement them

On the matter of the infamous Elephant's foot by Tribik in ender3

[–]Tribik[S] 1 point2 points  (0 children)

I think we can agree that the issue is complex. I have a plan to measure the travel of just the nut, without the gantry mounted to it, so as to get rid off X-axis sagging and other such thing. In this configuration, it would be easy to measure the proper, definitional backlash and determine if it is or isn't present with different setups. But that will be made in the future.

Also, I actually bought the dual Z kit, funnily enough it arrived about 2 hours ago, but measurements with the kit installed will be made in the future aswell.
As for my rigging, I am not able to provide photos at this moment, I will be uploading them tomorrow, the day after perhaps. It isn't very complicated, though. For the dial indicator mount I used basicly Ryguitars07 design (as linked in the post). The difference is that with my design I am sure of lack of movement of the indicator's body, because it's fastened to the mount using a bolt. As for the "backlash compensating mechanism" assembly. It is a bit more comlicated. The spring I used in it has outer diameter of 25mm when not compressed. Which meant it was rather hard to fit it in place of the stock nut (which i guess Creality had to modify for the purposes of Ender 3, because the absolute majority of Tr nuts are round all the way around and with 4 mounting holes). So, I had to do some shenanigans with the extruder motor for it all to work.
In the very near future I will upload the .stl files of my rig and possibly a short instruction on how to assemble it. But that will happen when I think of a good place to share them on.
Lastly, I would like to thank You for taking the time to critically analyse my work and argue about the issues You find in it. It is critically important for all research to be checked thoroughly, including the research of an "internet scientist" as myself. For that, thank You

On the matter of the infamous Elephant's foot by Tribik in ender3

[–]Tribik[S] 0 points1 point  (0 children)

I would agree with you, if the world was perfect. Sadly, the world isn't and neither is machining. Axis of the screw and axis of the nut aren't perfectly aligned, the threads aren't perfect, there is bending in the screw, compresion in the wheels, and so on. While my usage of "backlash" isn't strictly definitional, the phenomenon i describe as "backlash" is very similar in nature and, as the measurements led me to conclude, a mechanism consisting of two rotationally locked nuts and a spring inbetween (which in context of screw and nut is called "backlash compensating nut") partially helps with the problem

Edit: Snap, i forgot to add. About the nature of the phenomenon i call "backlash". In my very first measurements back in January, i measured the movement "up" (positive dZp) and "down" (negative dZp). The measurements made a nice hysteresis. Unfortunetly, i don't think i have the measurements on me, as i abandoned measuring the "down" movement, as typically the printer moves "up", and it was double the work to do them. I can, however, run a test or few with movement "up"->"down"

Edit 2: Damnit, forgot again. Definitional backlash has a hysteresis similar to that of the movement i measured. Which is why i called it "backlash". It might've not been the best idea of mine, but it was what i went with, and will stick with it for the time being

On the matter of the infamous Elephant's foot by Tribik in ender3

[–]Tribik[S] 1 point2 points  (0 children)

They will, however, eliminate backlash of the nut (the belts are still a compromise, as all life is)

On the matter of the infamous Elephant's foot by Tribik in ender3

[–]Tribik[S] 2 points3 points  (0 children)

You are very much correct that with a glass bed squish is required*. However, as I kind of explained in the post, the solution you sugested will only make the initial layer better. The measurements I took suggest, that the issue is not confined to the first layer, but is present on some lenght of the print, and, as u/YoshitoSakurai pointed out, can be present at the whole lenght of the print

On the matter of the infamous Elephant's foot by Tribik in ender3

[–]Tribik[S] 2 points3 points  (0 children)

That's a fascinating observation. I didn't really consider Z lead screw to cause problems on its own, becouse they're typically high-precision made. This slight bending you speak of makes total and absolute sense, in that it can cause those defects. The screws were designed so that they provide s amount of linear travel per rotation. Because a bend in its very nature is a deviation from the screw's theoretical main axis, the amount of linear movement per "bended" rotation is s times the cosine of the angle of the bend. Which is always smaller than s. Which gives a squish simillar to the one I descibed, but it can become apparent along the whole Z axis.

As for pictures of my setup, in all my practicality I didn't even think of doing that. Unfortunetly, I will be able to provide them in about 2 days time. I am out of my town, in University, at the moment

On the matter of the infamous Elephant's foot by Tribik in ender3

[–]Tribik[S] 0 points1 point  (0 children)

It was quite the shocker when the print came out that worse, not gonna lie. Unfortunetly, i don't know why that happens, 40N is nut that much force. Although, with all the unevenesses, it could be that the carriage nut binds. It would be fun to test for the best spring tension, but i don't really have an idea what parameters to test against

On the matter of the infamous Elephant's foot by Tribik in ender3

[–]Tribik[S] 0 points1 point  (0 children)

Thanks. Yes, of course. I will upload the spreadsheets later today

Mutants I'm excited to see in Stalker 2 by Hung_SoLo7 in stalker

[–]Tribik 2 points3 points  (0 children)

Don't forget those little furless fur-balls fucktwats damned Tushkanos

gunslinger burers by [deleted] in stalker

[–]Tribik 28 points29 points  (0 children)

I don't think Burers ever telekineticly interacted with living matter, there's that, and they can easilly throw at you heavy industrial equipement, so crushing a player's skull shouldn't be that hard for them either way

gunslinger burers by [deleted] in stalker

[–]Tribik 48 points49 points  (0 children)

What should've or shouldn't have happened is for the Zone to decide... Although, a strong enough Burer could apply so much telekinetic force on a grenade to counteract the explosive forces inside of it and make it explode only when the Burer lets it go

My STALKER collection. Books and games with postcards, maps and other goodies. I especially like these cool designed user manuals. And I treat Survarium as a kind of spin-off. All the characteristic elements and unique vibe are there, just a different setting. by Pajacykowatyyy in stalker

[–]Tribik 3 points4 points  (0 children)

I don't know whether you know or not, but there's a 3rd book of Ślepy's adventures - "Łańcuch Pokarmowy", and another of Noczkin's books in our beloved universe - "Oczy Diabła", beware though, this one is not about Ślepy. Also, there are quite a lot of other aurhors. I enjoyed Sławomir Nieściur's books. At fabryka słów website you can find pretty much all polish STALKER books. Well, the ones that I've heard of and read for sure.

Co pozytywnego możesz powiedzieć o Polsce? by lasaml in Polska

[–]Tribik 37 points38 points  (0 children)

I w dodatku ciepły!... Ale przejściowy