Got this deck from a shop giveaway. 8.6 with a taper towards the tail. Just curious, what is the purpose/benefit of the tapered mellow concave shape. Is it more stable? Does it flip better? Less or more pop? Etc
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πŸ‘€︎ u/earlandy
πŸ“…︎ Jan 11 2022
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rate my fantasy world map (i really hate concave shapes)
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πŸ‘€︎ u/YukiZensho
πŸ“…︎ Dec 16 2021
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Perfectly gooey DΓ©lice de Bourgogne! You can tell by the concave shape that it is nice and ripe :)
πŸ‘︎ 387
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πŸ‘€︎ u/coeurdelejon
πŸ“…︎ Nov 09 2021
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Anyone have a CC bonzer I can chat with about measures / concaves? Looking to shape myself something like this. I’ve also seen folks able to pull measures digitally from pictures? reddit.com/gallery/r8tpdk
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πŸ‘€︎ u/internetmallcop
πŸ“…︎ Dec 04 2021
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What causes my print to take the concave shape at the end. should I need to reduce my cooling fan speed ?
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πŸ‘€︎ u/immacutdown
πŸ“…︎ Nov 14 2021
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ironically my favorite cymbal of all time. This is a B8 that I stepped on as a child and as a result has a concave shape instead of a typical convex one. I have failed in finding one that says just β€œcrash” and not β€œcrash ride”. Best sounding ride cymbal I’ve ever played
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πŸ‘€︎ u/mcardinals75
πŸ“…︎ Oct 30 2021
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Just set up my third Welcome Ryan Townley. The perfect shape/size/concave for me [46YO]
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πŸ‘€︎ u/mathewcoyte
πŸ“…︎ Nov 03 2021
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Begonia lyniceorum, a rare plant endemic to parts of Mexico, though perhaps extinct in the wild. A small species with semi-succulent, waxy, peltate leaves that are concave in shape. Prefers excellent drainage and not too much moisture. reddit.com/gallery/rccoby
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πŸ“…︎ Dec 09 2021
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Concave Shapes in Stone [Help]

Hi all,

Looking for suggestions on how to achieve the concave details on the Noguchi and Giacometti sculptures below. I am trying to get something similar in limestone, and want the subtlety/shallowness of the circle while maintaining the hard edge around it. I'm new to sculpting and always looking for new methods. would love to hear how you might do this. Thanks.

https://preview.redd.it/blpv5krw25781.jpg?width=563&format=pjpg&auto=webp&s=b10586720fb60c49acfac88d9654c6c9aed13609

https://preview.redd.it/5o1aivrw25781.jpg?width=866&format=pjpg&auto=webp&s=533daee3328007ace7b4b1fa0cf1066ce7118a3f

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πŸ‘€︎ u/StoneMetalWood
πŸ“…︎ Dec 22 2021
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What is this hand turned wooden dowel? It is 7.5” long, one end is an elongated teardrop shape, with the small end connected to the top of a bell shape which has a concave bottom with pencil lead surface, as if someone drew on it. Near the widest part is 2 parallel groves. reddit.com/gallery/q50vyh
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πŸ‘€︎ u/SusanE53
πŸ“…︎ Oct 10 2021
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What do you think of a concave pillow shape?

My daughter and I independently both thought of an idea where a pillow is built to have a more concave shape, made to fit more closely the natural form of the body. It would have more shape and support for the neck and around the head, while having a dip and less support right where the head goes.

What are your thoughts?

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πŸ‘€︎ u/anonthe4th
πŸ“…︎ Nov 18 2021
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Found this cast iron thing on the shore by my place. It’s slightly concave in shape and looks like it was originally two pieces that rotated separately around a centre point (now ceased) reddit.com/gallery/pxi3ny
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πŸ‘€︎ u/SoupMaster2030
πŸ“…︎ Sep 28 2021
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My favorite dollar silver coin. The us mint basketball coin. It has a concave ball reminiscent shape.
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πŸ‘€︎ u/ratadeacero
πŸ“…︎ Nov 17 2021
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Usually my RNASeq volcano plots are concave. Does anyone know why one gets a convex shape like this? I use the standard Deseq2 pipeline and ashr shrinking.
πŸ‘︎ 9
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πŸ‘€︎ u/BrokeBrokerYOLO
πŸ“…︎ Nov 04 2021
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fly agaric? found growing near birch near one that was less concave but obviously the colour and shape is throwing me a bit reddit.com/gallery/qlxeny
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πŸ‘€︎ u/slewtgurl
πŸ“…︎ Nov 03 2021
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Baker Og Shape/Mellow Concave Blanks... Do they exist???

Newbie here looking to see if there are any companies that sell blanks with the similar OG Shape & Mellow Concave as Baker.

I am not looking to spend seventy dollars on a board with a graphic that is not meant to last me.

Any information or guidance would be greatly appreciated πŸ™

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πŸ‘€︎ u/henryvelazquez
πŸ“…︎ Oct 09 2021
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I had this interesting thought about scapegoat/narcissist psychology in terms of concave and convex shapes

Imagine everyone has a shield in front of their heart, some people have a convex shield and some have a concaved shield (look up an image of concave and convex). Now imagine arrows shooting at the shields, these arrows are input from the world, situations and interactions. To me it seems like people who suffered abuse and as a result have low self-esteem/self confidence, have a concaved shield. Almost like your self esteem/self protection has collapsed or caved in. People who have an overbearing, narcissistic, arrogant or overly confident personality type have the convex shape. Even things that are their fault don't make them feel guilty, which in a sense is self protective. Convex is reflective while concave is open and exposed. The reason I thought this is because people who have suffered gaslighting, scapegoating and other abuses, tend to blame themselves for everything. Perhaps constantly worrying if someone close to them is angry at them. I have basically described the psychological mechanism of a scapegoat, someone who has been psychologically conditioned to blame themselves. Anyone who feels they suffer from this concaved psychological style, I believe, could benefit from trying to absorb less responsibility/blame and trying to be more like a reflective shield. Instead of thinking "Was that argument my fault?", try, "Everyone disagrees, not everything is my fault for god's sake". I just realised, personally, I take a lot of blame for arguments and disagreements that are the responsibility of both parties not JUST me. I even take blame for when people are rude to ME, imagine that! Basically the gist of what I'm saying is we can learn from the narcissistic monsters and be less selfless, blame ourselves less, take less responsibility and be less of a "good person". Lets be a "good person" to ourselves for once!

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πŸ‘€︎ u/JannisJanuary42
πŸ“…︎ Aug 24 2021
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The β€˜Walkie Talkie’, ugliest and most expensive building in London with the $1.8bn price tag, had to have $14m worth of sunshade installment later on because of the buildings concave shape focusing sunlight to the street down below. The architect said he didn't think London would get this hot!
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πŸ‘€︎ u/cenotaphx
πŸ“…︎ May 25 2021
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TIL in the summer of 2013, London skyscraper β€œ20 Fenchurch Street” gave off a focused, intense beam of reflected sunlight for 2 hours each day due to its concave mirror building shape. It was so hot that a London reporter fried an egg using the reflected rays. en.wikipedia.org/wiki/20_…
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πŸ‘€︎ u/mikechi2501
πŸ“…︎ Jun 03 2021
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Is it normal for A. Cuprea creating a concave shape leaf??? v.redd.it/m6ob6zsjthi71
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πŸ‘€︎ u/kbab2hot
πŸ“…︎ Aug 20 2021
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My controller after 800+ hours in RL. I hear a lot about people having to change controllers every month but mine held up for so long that the concave shape on the left thumb stick has litteraly gone flush on one side. Still works flawlessly btw reddit.com/gallery/ogrks1
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πŸ‘€︎ u/sylvester_l
πŸ“…︎ Jul 09 2021
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This is a quaffle ball from the Harry Potter film franchise, set in the fictional Wizarding World. Wolfram|Alpha and other sources tend to call it simply spherical or an β€œirregular sphere”, etc. Does/could its shape have a more precise name? There are 4 concave divets at regular spacing… reddit.com/gallery/o6l60z
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πŸ‘€︎ u/Fruit_Pi
πŸ“…︎ Jun 23 2021
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I made my first program in Python in only 5 days!!!!!! Yay!!!! [SA:V/d for Convex and Kepler-Poinsot (Concave) Polyhedra] My hypothesis held true that those shapes in nanoformulation drastically increase the ratio at the same diameter!!!
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πŸ‘€︎ u/TheStockyScholar
πŸ“…︎ Mar 04 2021
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So I’ve got my Onewheel coming in tomorrow and I’ve bought some accessories for it already. I’m wondering if anyone has reshaped the stock footpad using a sander to give it a more concave shape? Just a thought I had and wanted to see if anyone else has tried it?
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πŸ‘€︎ u/johnpaulthedp
πŸ“…︎ Jun 15 2021
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Once again using the app Snow in a video, Kim's making her face thinner and doesn't care if it makes the walls behind her concave or changes the shape of the door πŸ€¦β€β™€οΈ v.redd.it/cy7dil7k1al61
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πŸ‘€︎ u/Mektild
πŸ“…︎ Mar 05 2021
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[Applied Linear Programming] How would you find the "flattest" surface on a concave polyhedron? I.e., if you were to set the polyhedron on a table, how could you find the side that most nearly resembles the shape lying flat?

I'm working on a project that involves 3d-printed joints (generated based on input) that are created using convex hull methods then shaving away at the connections. The result is a concave polyhedron with no smooth curves. This link is an example of a single joint at different orientations.

I want to find the ideal bed for the joints, which to my understanding will involve creating a plane intersecting one or more outer vertices on an entire "side" of the joint, then finding the volume between the polyhedron and the plane, and iteratively finding the "side" with the smallest volume. Then outcroppings can be made on some faces of the joint so that they reach the plane.

Am I overthinking this or is there an easier way? The only other idea that came to mind was creating a bounding box from several different starting vertices and iteratively finding the volume created by each side of the box and where vectors normal to the side intersect the joint. I just wasn't sure if this led to a nearly ideal solution and it was looking pretty memory intensive.

Any feedback appreciated!

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πŸ‘€︎ u/life_is_segfault
πŸ“…︎ May 16 2021
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Something wrong with these? My mom gave me these to sell on my Poshmark. The bottoms on both are kind of concave? Is this normal? I will try to show it. They are otherwise in very good shape. reddit.com/gallery/nm6d47
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πŸ‘€︎ u/MamaMelaine
πŸ“…︎ May 27 2021
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Hey, i did this because the guitar i recently bought had concave shape, i tightened it till its straight (not way far, like until it buzzed), But not theres a small gap between the end of the lower fretboard and the body.... Its just 2 days of buying it, should i return?? Here is how it looks. reddit.com/gallery/n2q2km
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πŸ‘€︎ u/sagunmdr
πŸ“…︎ May 01 2021
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Is it possible to detect collision between two concave shapes? reddit.com/gallery/nfjgn0
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πŸ‘€︎ u/MrEliptik
πŸ“…︎ May 18 2021
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Polar concave / board shape

Ive been skating a polar nick boserio memory palace 8.0 for a while and it is my favorite board I’ve ever had. I was looking to buy the Oskar Rozenberg Tribal Chief 8.0 deck, but I was wondering are they the same shape? Not only shape but do they have the same nose and tail angle/ size? Same wheelbase? I understand they come from the same factory as other boards, but are they really all the same board but with different graphics?

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πŸ‘€︎ u/blake-_-69
πŸ“…︎ May 19 2021
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I got a snake plant a few years ago and every leaf that existed when I got it are essentially concave all the way to the end, whereas all the new shoots/leaves that sprouted since I’ve got it have twisted into a convex shape. Any ideas why? reddit.com/gallery/madbn8
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πŸ‘€︎ u/onobao
πŸ“…︎ Mar 22 2021
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Powell Peralta shapes and concaves

So every board on the website has a shape code (e.g "170") and a concave code (e.g "K15"... but I can't find any table with an explanation of what these codes mean.

Anyone know of a resource with this info available?

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πŸ‘€︎ u/HarderData
πŸ“…︎ Feb 22 2021
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Rate my new ride 😝 Exodus 32mm medium concave deck. Teak tuning yellow hangars + red plates. Sky blue Ill pills 70D street shape.
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πŸ‘€︎ u/No-Frosting-4996
πŸ“…︎ Jan 21 2021
🚨︎ report
Are there good mechanical keyboards that don't have a concave shape?

I'm in the market for my first mechanical keyboard and am having trouble with the concave shape of the board. I game a decent amount and am coming from my laptop where all the buttons are at a even level making it easy to hit the x/c/v/b keys with my thumb. I got a redragon k580 pro and due to the keyboard having a concave shape I am unable to hit those same keys with my thumb without also triggering the space bar. Are there any recommended keyboards that don't have that shape to them and are more than less flat? It may be a taboo on this sub but I got the Razer Ornata v2 and I enjoy the layout of that one more but dislike it for other reasons. Any help is appreciated there's so many keyboards out there it can be a little overwhelming.

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πŸ‘€︎ u/Belmont135
πŸ“…︎ Dec 10 2020
🚨︎ report
Still don't know how TopYo Creater is $14 with 7003 aluminum, great finish, great shape, comes out of box responsive with concave unresponsive bearing and axle, probably one of the best learning yoyo out there.
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πŸ‘€︎ u/dipto1996
πŸ“…︎ Jun 18 2020
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Any smart way of removing holes in a concave 2D shape?

In some cases, I find it easier to generate shapes in ways that leaves holes in them, or need to create a "mask" for a part which has holes in it. For a convex shape, it's easy to just do a hull(), but how to do it for a concave shape?

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πŸ‘€︎ u/ElMachoGrande
πŸ“…︎ Nov 03 2020
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Could this be an experimental coin? It’s a lot shinier than my other steel despite being more worn. It also has a slightly concave shape, but that could be due to the punched-in design. Do not know weight. reddit.com/gallery/j5lb6x
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πŸ“…︎ Oct 05 2020
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Another hand painted deck. The shape has a slight concave in the nose and tail, which feels nice
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πŸ‘€︎ u/nene2k3
πŸ“…︎ Jun 02 2020
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I tend to underflip my tricks on a low shape p rep board and do my flips perfectly on a 32 mm tech deck so what size concave and kicks would be good for me similar to this shape
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πŸ‘€︎ u/MikeyT1205
πŸ“…︎ Sep 25 2020
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One baby is thriving, the other is not. How do I bring him back to his glorious pink colour and concave shape again? reddit.com/gallery/imn0u6
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πŸ“…︎ Sep 04 2020
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