BRO! I print a ton of tooling for sheet metal and castings but your little dual-barrel hinge thing is sooooo clean!! I'm totally stealing it. thanks man. I owe you one. Thanks for teaching me.
@StuffMadeHere4 жыл бұрын
Really cool - I'd love to see examples if you have anything to share. It seems like a really useful technique but not a lot of stuff published on it
@mitchmonnett4684 жыл бұрын
That rotary tool when you’re looking at was developed a Curtiss Wright aircraft manufacturing before world war two it’s even documented in some of their shop manuals you kids just have to start reading history books more!!!
@PeterDiCapua4 жыл бұрын
@@mitchmonnett468 give me a list of books. Just telling me to read more, not super helpful gramps
@PeterDiCapua4 жыл бұрын
@@jacquesplante9287 thank you
@DieselRamcharger4 жыл бұрын
@@PeterDiCapua machinery handbook
@KaletheQuick4 жыл бұрын
Ah yes, another episode of this young Tony.
@bjarnehansen11014 жыл бұрын
KaletheQuick thought the same😂instantly subbed
@alejandromechina59594 жыл бұрын
Lmao.
@mtenkawa4 жыл бұрын
High praise indeed.
@bettytherussiantortoise28084 жыл бұрын
Ca Lem is this young tony his has the same mill and makes parts more accurately than tony go check him out.
@Maker238DeLoach4 жыл бұрын
I’m not ever lying, just laughed hard out load like really hard that I you for this. And great video
@Exidous964 жыл бұрын
For highly complex parts, you should consider creating (I forget the technical name) holes in the bottom of the dye that can be used to push the part off the dye, like whats used in plastic injection molds. Youd have to add another part to the dye to plug the holes for the release pegs, but I think it would save alot of time removing parts from the dye. Really cool work!
@EvilWiffles4 жыл бұрын
Exactly my thoughts as well.
@Mrcaffinebean4 жыл бұрын
Dan_The_Burger_Man ejector pins I believe, good suggestions!
@Mrcaffinebean4 жыл бұрын
Roderick storey check out this great video on injection molding. This is were I picked up that term kzbin.info/www/bejne/iH7NpaCpp5h2p6M
@cocotug04 жыл бұрын
yep... thats the source of all my plastic injection knowledge
@David-mo2wu4 жыл бұрын
@@Mrcaffinebean Ejection port would be more fitting with this idea
@delusionwalker88524 жыл бұрын
Massive THANK YOU!!! you have opened my eyes to completely new world of options and ideas. You have five very clear explanation and clear knowhow transfer . Again, MASSIVE THANK YOU.
@zteaxon77874 жыл бұрын
That's genius for you. Someone who not only understands what he's doing but also has the communicative skills and empathy to understand how to convey and explain these things to another person. A lot of smart people lack the social skills to understand how to explain their ideas at a level others can follow. And end up rambling about specifics without having properly conveyed core principles. Understanding an audience you're talking to. To be able to give them a why, how that actually captures them, which they can follow. He would be a great teacher. But we need this guy in other fields. He can make educational video's, do projects for himselglf and business and probably achieve more than teaching in academics. Being part of a college research lab wouldn't be bad though maybe.
@JNCressey4 жыл бұрын
Dad comes in: So, Stuff Made Here, you got that part to fix my $20 tool yet? Stuff Made Here: Sure, here's a few hundred of them.
@damiantheomen4 жыл бұрын
Dad: "Are you winning son?" Stuff Made Here: "Define winning" Dad: "Did you accomplish what you set out to do?" Stuff Made Here: "Yes" Dad: "Wait...why did you make me define it?" Stuff Made Here: "Because the raw material cost greatly exceeded the cost of the part, not to mention the sweat equity" Dad: "All I want is what is best for you, I love you son" Wow, that ended differently than I thought it would, and I'm the one who wrote it.
@TravisL.Desmadreson4 жыл бұрын
@@damiantheomen lmao
@davidkohler74544 жыл бұрын
I think it's totally awesome. And that this young man is so very brilliant. I am so jealous of his talent. Yea you may not go to this much trouble and cost to make a 2 dollar part for a 40 dollar tool. But....there are always those unobtainable parts at any price.so being able to produce one yourself is priceless..
@gabrielpichorim81914 жыл бұрын
Surely his dad calls him Stuff Made Here and there is nothing anyone can say to change my mind
@scottwilkins69664 жыл бұрын
I'd bet that it's now closer to a $200 part after all that prototyping. Would love to know the actual total cost.
@designersmind31404 жыл бұрын
This is honestly incredibly valuable for the 3D printing / machining community. Thank you for doing all of this work for us!
@JohnDoe-rx3vn4 жыл бұрын
I like that videos like this pull all the industry professionals out of the woodwork. They always give good tips. Super cool video!
@SirPoisoned4 жыл бұрын
These videos are some of the highest quality, most in-depth, and most watchable engineering videos on KZbin. You cannot change my mind. WHERE HAVE YOU BEEN ALL THESE YEARS? Keep em coming!
@alexwood0205894 жыл бұрын
When you showed how the part was it's own spring I said "oh that's so cool!" out loud, and now my wife thinks I'm even more boring.
@openlink99583 жыл бұрын
worth it.
@Matthew-sp5kv4 жыл бұрын
I've worked for almost 7 years in sheet metal manufacturing. I find it impressive how close to actual tools and methods you are getting with what I assume is no or limited prior knowledge of sheet metal. Your rotary benders are extremely close to commercially available ones.
@knightdive14 жыл бұрын
I used to build stamping dies for a small shop. Those rotary bits are what we call ready benders. Very handy features
@upupc5024 жыл бұрын
11:53 "These turned out grate"
@znefas4 жыл бұрын
leave
@PlayFull_Cat13 жыл бұрын
when you use the wrong great
@noeljonsson35783 жыл бұрын
@@PlayFull_Cat1 when you don’t get the joke
@buckwildebeest3983 жыл бұрын
These are the kind of videos you can like in the beginning, because you know they'll be good enough for a like anyway.
@GrimResistance4 жыл бұрын
When you're cutting them out, start the plasma arc in the middle of the waste material and then move to the cut line. That should give you a cleaner cut.
@movax20h4 жыл бұрын
He knows. The issue is the power level and speed for this particular material and thickness. And possibly uneven surface finish on galvanized part.
@mick0matic4 жыл бұрын
@@movax20h I still think GrimResistance is right, look at the cuts, he starts and ends them on the edge of the part on the same spot. Offcourse its going to leave a rough spot on the start and endpoint, he could atleast solve that problem by changing settings i think.
@movax20h4 жыл бұрын
@@mick0matic yes you are right, one should start from inside of the waste material, far from final edge. But you can see that the main issue is power level and speed, because even whole edges and holes that had constant feed, had these issues, not just the starting point.
@mick0matic4 жыл бұрын
@@movax20h Yes thats true, i only mentioned it so it can atleast be a bit better than what it was before, still its not perfect. Gotta use the tools you have to make the best out of the situation right :P
@revilolavinruf4 жыл бұрын
@@mick0matic It's also recommended that the cuts be staggered on large cut to blank ratios like this because of the heat-warping. It can help reduce the warping by displacing the heat more evenly. Which may make it sit in the tooling better, resulting in a better finished product.
@cam_DA_Hawkdriver4 жыл бұрын
When I used to work in a factory while going to college, forms were often two steps. However the way they got around that was to have two parts pressed at a time. The result is that you’re getting one part per press. The complex dies often had a mechanism that “ejected” the part by pushing the part up from the bottom, which helped when transferring part one to part two in the die set. Even complicated dies involve multiple steps. If you’re mass producing, at a minimum you want one part per press. Good video!
@unlokia Жыл бұрын
You’re SO on my level. You’re clever, humble, calm and your wife is equally as delightful. God bless you sir. From Matthew in England.
@kyjason68263 жыл бұрын
As someone who works as a Tool and Die Maker this is very inpresive when it comes to how fast you picked up and corrected your mistakes ! Good Job! And maybe see if you can get some Ejectors of some sort :)
@rootvalue3 жыл бұрын
I replayed the clip at 5:55 half a dozen times, each time at a slower playback speed. Super satisfying to watch the fruits of deliberated research and development.
@you_just4 жыл бұрын
“So it turned out that it didn’t work because I did it wrong”
@Aethelbeorn4 жыл бұрын
That is life.
@jeremyporterfield16114 жыл бұрын
I subbed right here...
@mrnice44344 жыл бұрын
Story of my life...
@python_2954 жыл бұрын
@@Aethelbeorn AA
@timothyvandyke95114 жыл бұрын
Me coding
@JohnUllrey4 жыл бұрын
I found part 1 and 2 of this series fascinating! I have a 3D printer and have really enjoyed learning how to design things in CAD and then print out stuff that's useful I can use around the house or in my car. Once again, excellent content; you earned a new subscriber.
@domkelly19724 жыл бұрын
you designed a press tool with no space for the material.???!! oh well at least you got it right the second time. good video. i will be making some of these tools soon.
@Cyril29a3 жыл бұрын
I love that when you say some up grades at -0:48 it sounds like you are saying Smug Grades! BTW you have the best channel on the internet, please do not stop.
@timothybishop87554 жыл бұрын
The Aesthetic of the slightly rough parts is... Kind of industrial and I'm into it.It's so clean and professional, but there's the tiny bit of human crafting to it that makes it feel... Like, personal? I guess? In any case, I love learning from your videos, I like listening to your voice, and I like watching YOU learn at the same time. It's like being invited into the process. Thanks for making these.
@jonwebb92614 жыл бұрын
This is really impressive! Also, you always have band aids or band aid adhesive on your hands so I trust you are a true sheet metal worker!
@aytee_papi3 жыл бұрын
it's amazing you use a hydraulic press, which usually presses or flattens things to give your items a more 3D shape
@lawrenceveinotte4 жыл бұрын
i have designed this style of tooling for a company making wood stoves and gas stoves, it was used in a number of different parts, tens of thousands of parts per year over many years, my tooling was made of different types of tool steel, my design did not use rounded bottoms on the moving parts, the bottom was flat, the holder had the opening with the bottom tapered toward the center, along the center line of the holder were rubber blocks that kept the moving sides opened up past 90 degrees, when you pressed your part and the top tooling reached the bottom it compressed the rubber at the same time the moving sides over bent the part so after spring back you would have a 90 degree bend, as the press moved up the rubber pushed the moving sides up and released the part, so in short the two moving sides rotated on their outer lower corners, a pivot point. hope this is clear as mud lol
@consultantnigel-projectman727423 күн бұрын
WOW!!! I never would have imagined this was possible. Those parts look amazing. Thank you for the hard work, and for sharing.
@frogwav3 жыл бұрын
This guy's videos are so high quality. very nice.
@ersetzbar.4 жыл бұрын
My professor told me spring membranes are formed like this in production. Nice to see some video similar to it. I had initial doubts about the soft plastic forming the much harder steel
@StopTV-sj7sd4 жыл бұрын
I've watched enought of your videos to get sheet metal company advertismenst... Such fools, why would I need such service, after aquiring the knowledge you convey
@trygvetveit47473 жыл бұрын
Small sand shaker made of a osc sander and a smll plastic tray to do your deburring and polihing :)
@Hiddenrage14 жыл бұрын
I like what you are doing. I'm a die designer and my work never let me try experimenting with plastic printed parts. On the second die you need a stripper around the punches that are forming the flanges. A stripper holds the part firmly in place before forming is done and holds the part down while the punches are being withdrawn from the part. Keep up the good work!
@Macaroli4 жыл бұрын
That rotating spin thing that forms 90 degree stuff is absolutely genius blew my mind
@MakerBrain4 жыл бұрын
I like how you mix technologies. A lot of people try to use just 3d printing for a project and then get upset because it isn't perfect. 3d printers are just another tool like a mill or plasma cutter.
@richiskinner98104 жыл бұрын
The double hinge approach is genius and very satisfying to watch! And I do agree that beeing able to print the tooling instead of maschining it is a lot more accesable. Although I doubt that a lot of people own a 3d Printer and a cnc plasma cutter. But I guess that could either be outsourced or exchanged by an alternative method. Maybe their is a way to stamp the desired form out of the sheet metal?
@jerrittsmith10944 жыл бұрын
I have a 3D printer of my own and this sparks some ideas. Id love to see more of these 3D printed mold videos!
@justforthetv4 жыл бұрын
Wowwww lol it's nice to see someone who uses a press for it's intended purpose (not just smashing, breaking random items haha)
@TheJs123477774 жыл бұрын
respect for your logical problem solving, persistance in chasing the problem without being over perfectionist
@tylerm.94084 жыл бұрын
Damn why did it take so long for me to find this channel!?!?!? Such good content
@AndrewSink4 жыл бұрын
Awesome video! I love the focus on iterative design, and you did a great job of explaining the pros / cons of additive vs. machining!
@ADRIAAN10074 жыл бұрын
Have you tried using a dry lubricant like graphite instead of oil. When pressed tightly wet lubricants can create a strong suction force.
@StuffMadeHere4 жыл бұрын
No I haven't. I have been using way oil for machine tools since it is designed for very high pressures. I just ordered some graphite lube to try. Thanks for the tip!
@mathieusan4 жыл бұрын
normally for bent parts you want to anneal them in an oven afterwards, to remove residual stresses when entering the plasticity zone. The annealing process (temperature, timing, and cooling ramping) would depends on the material you have bent. If you don't anneal them, depending how they are loaded in service, they can fail early in fatigue.
@ineverchangemyplayericon30164 жыл бұрын
The moment you showed your tool at 6:50 I was thinking I've seen that on my espresso machine. Strange how it has a signature look.
@Fwacer4 жыл бұрын
Where did you come from man? The topics you cover are super interesting (I'm a 4th year mech Eng student) and your videos are also high quality - reminds me of Ben Eater in some ways! Great work. :)
@doctorzoidberg17154 жыл бұрын
I am so glad I saw your channel if I am to be honest I kept on seeing your basket ball hoop and ignored it. However I found these videos and am glad I saw this. Very cool stuff.
@alexwitteried38934 жыл бұрын
This has become my favorite channel on youtube...sorry AvE
@thechip21944 жыл бұрын
I have never been so interested in videos like this before. I have watched all your videos now 😊 thank you stuff made here!
@Black3ternity4 жыл бұрын
Nice. Just watched the first video on this and thought to myself: "Maybe there is not enough clearance for the metal to go into." Thanks for showing this and "admitting your faux pas". Because often times you come across similar issues and don't realize them. If I would own a 3D printer and a workshop AND do stuff like this, I would write that down in some memo in order to check when this would happen to me. Unfortunately, I own neither but if the day will come, I will remember. Until then: I will just watch your cool videos and see your channel grow. Keep it up.
@rodiculous94644 жыл бұрын
This is pretty amazing, and will revolutionize stamping technology
@ColburnFreml4 жыл бұрын
If not revolutionize, it should at least decentralize.
@rodiculous94644 жыл бұрын
@@ColburnFreml yes good point
@Inertia8884 жыл бұрын
I am currently working on a design for forming microchip legs to a 90degree angle. I was having trouble with the elasticity of the metal legs and am quite happy having found this.
@jacobfalk48274 жыл бұрын
That's some pretty thick steel, nice work! You can also press form speaker grills or perforated mesh shapes. 3D printing is great.
@hologos_ Жыл бұрын
Thanks!
@cartbart14 жыл бұрын
When you say it worked much better then expected I hear Ben from applied science Awesome videos keep up the good work I’m gonna try this process with al
@EdwardCoplinBatman4 жыл бұрын
Such an obscure title and the video has 2M views. Such a great channel
@ADBBuild4 жыл бұрын
You could add some through holes to the die for ejection pins to pop the part off instead of trying to pry it off. You would need to make the overall size of the die larger than the part so you had something to rest the die on when pressing it out. You could get really fancy and make them spring loaded so the part ejected after releasing pressure form the press. Edit: I noticed after posting this that several other had the same idea. lol
@siggyincr74474 жыл бұрын
As a former tool and die maker this was interesting how a hobbyist goes about this sort of thing. I could see using 3d printed plastic in conjunction with machined metal ones being a good option for prototyping.
@StuffMadeHere4 жыл бұрын
Yeah I've been thinking about that - basically put the metal where it is really needed such as high wear points or high stress points and let the rest be plastic. I bet that would work well
@caveboy99884 жыл бұрын
Best way to learn from mistakes. Really like the way you go about stuff. Good work
@mikeygee45644 жыл бұрын
Great follow-up. I appreciate it. And you crack me up with your band-aid remnants and residue
@StuffMadeHere4 жыл бұрын
Haha I get cut... a lot. I try not to but nothing seems to work. Then when I'm editing the video I'm cringing at all the bandages. Glad you get a kick out of it :)
@mikeygee45644 жыл бұрын
@@StuffMadeHere so do I brother. I always have cuts, scares and scratches on my hands. And keeping bandaids on the fingers is quite a challenge!
@MrTommo5563 жыл бұрын
I am in no way an engineer but man your videos are so mesmerising. Just wow. I ain't religious either but God bless you my dude you're a damn mechanical genius.
@AliYassinToma4 жыл бұрын
Never thought a 3d print would be this durable
@Jeffrey.Kennedy3 жыл бұрын
I was the guy who your talking about in the end of the video, I didn’t enjoy any of this but watched every second.
@theonlybuzz19694 жыл бұрын
Hi there, this channel was a suggestion and am I glad it was, you have a new subscriber added to your list after seeing a practical solution for making printed parts to make forms for a press, bravo on the use and I look forward to seeing some more of your videos.......Phil 👍
@connormueller19443 жыл бұрын
I have no idea what he’s doing in any of his videos, but I’m so fascinated that I watch them anyway 😅
@jesse0gn4 жыл бұрын
Really liked the video. You could consider adding 'rejection pins' just like a injection molding machine has. I mean to add holes in tho bottom mold, so you could put pins trough and eject the part. Geep up the good work!
@jeramyolson21634 жыл бұрын
This video has me looking at some parts I need to build in a entirely new way. Thanks!
@macbeth9304 жыл бұрын
Can't believe i just found your channel. this is gold mine
@christopherparker18234 жыл бұрын
This dude is so next level. Blows me away every time
@DieselRamcharger4 жыл бұрын
you are an inspiration for me and my son. build on my guy, build on.
@TheJagjr44504 жыл бұрын
Glad you figured out the clearances... I watched the previous vid and was questioning whether there was adequate clearance for the thickness of the sheet metal.
@johnnydingo86804 жыл бұрын
Impressive and interesting as well . A younger version of this old Tony. I like your presentations. Subscribed
@linecraftman39074 жыл бұрын
This young Tony
@knight22554 жыл бұрын
Nice vid, love the rotary tool/form to get the 90 degree bends, clever!
@rob74394 жыл бұрын
3d printed progressive tool and die very awesome! This channel never ceases to amaze me.
@ManSingh-hu8ux4 жыл бұрын
I thought I was somewhat of a hands on engineer but holy moly this is next level.
@ivanhunter39073 жыл бұрын
Gear is great. Really learning a lot for your videos. Thank you
@berryreading48094 жыл бұрын
This video well help open a whole new world for makers. Well done!
@andrewgreen94174 жыл бұрын
I've experienced this quite a bit. I learned drafting manual drafting in his and 2d cadd early autocad. I've made the transition to solid works because work uses it but have had to relearn drafting with linked stuff like you clearance issues. Then I am a hobby machinist but I'm all manual and work wanted to add additive manufacturing to our setup so again thinking a new way. Wild ride but now I know more things so yah.
@arlingtonhynes3 ай бұрын
I still enjoy your videos, and I’m delighted by your success, but I really miss your videos like this one.
@googacct4 жыл бұрын
Thanks for another excellent of demonstration of using 3d printed parts to form dies. Lots of great ideas to take away.
@chrisdufour22164 жыл бұрын
Anyone else jealous about how smart this guy is ?
@giacomopamio11914 жыл бұрын
We need more channels like TOT. Keep it up!
@vincentguttmann22314 жыл бұрын
Well, more videos would be nice. TOTs schedule is a bit strange
@inscruitablefilletknifesha26814 жыл бұрын
Very cool, not to mention you can even make a hydrolic press out of an old 20 ton jack if you're just starting out with sheet metal stamping. A start up cost of only about $500 at the cheapest.
@stefanguiton4 жыл бұрын
Very informative video, earned my sub. looking foward to more great content like this!
@xaytana4 жыл бұрын
Curious how much improvement you've made on this concept in the past half year. I'd like to see updates, especially on complexity of bends and forms, and complexity of finished parts.
@ATemplarIGuess4 жыл бұрын
He's been to busy making melee guns
@psidvicious4 жыл бұрын
That rotating die idea is brilliant! 👍
@lilboomthememegod4 жыл бұрын
Idk why I watched this but I don’t regret it
@roberthorwat67474 жыл бұрын
This brings back memories of my fly press operating days forming channels in 12" × 8" aluminium plate, in cross section the press formed almost a cylinder like the letter Omega. A few hundred of those and my arms ached like mad. The gorilla bicep machine.
@juanbalari65574 жыл бұрын
Awesome, excellent Research & Development!!! I love the people making things just to see what happens and design a thinking path, i really do believe with these actions we get out of the cave after long time
@leenet29844 жыл бұрын
Great work, the reason the first too broke up is due to the same springback as you saw on the first part, the flanges formed will spring back. By reducing the form tool height, there is nothing for the material to grab. Keep up the good work.
@spoot4 жыл бұрын
Nice stuff! Time lapses of the printing process would add some nice b-roll. For alignment, possibly oversize the blank and add registration features.
@michaelg_8394 жыл бұрын
+1 for the B-roll.
@michaelburry83324 жыл бұрын
This is the video of yours that I stumbled upon where I instantly subscribed. 😎👍💙
@teemch61113 жыл бұрын
Nice metal bending! Toph would be proud!
@Cyruscosmo4 жыл бұрын
I watched the first video and now this one. I really like what I see and I have learned a few things about my 3D printer! Subbed and rang the bell!
@tibfox4 жыл бұрын
Great second part of this exciting series. I can't wait to see some more inputs from you :)
@chrishayes57554 жыл бұрын
this deserves a sub. EXCELLENT work!!!!!!!
@macrumpton4 жыл бұрын
This is an amazing process with great looking results. So with a $200 press and a $200 3d printer you are most of the way to a versatile metal bending setup! Now if you show how to make a cnc plasma cutter we will be all set.
@StuffMadeHere4 жыл бұрын
I made my plasma cutter and it really wasn't too bad. I plan to do an overview of it soon
@themeek3514 жыл бұрын
You can drill holes in the bottom form to push the metal off from underneath with a wooden dowel, or another printed piece to push through multiple holes at the same time!
@rivercityfishing91034 жыл бұрын
This is ever so clever! All I might add is to remember to cook the parts in an oven so as to remove the constraints that were applied to the metal during the bending process, in order to strengthen the bonds. They would look mint after a surface treatment such as a cataphoresis coating or Delta protekt 🤘
@dhebert1113 жыл бұрын
This is great stuff, and great video that's super informative. Really clever ideas, thanks for sharing Did you ever think of drilling a couple holes into your mold. You could reinforce them with metal tubing. At the end of the tubing on the outside, you could attach an air quick-connect. When the part is fresh off the press you could attach an air hose and run some air through it. They use that process to produce all kinds of products right now. It just might work for your stuff. Hey, just a thought, and thanks again.
@Kevin-jb2pv3 жыл бұрын
If you want to remove the drip tray part from the tool, you could either try to cool the mold or heat the part. The part is metal, so it might be easier to heat that without transferring that heat into the mold, but that might be a fine balance to try and strike. You could also just try throwing the whole thing in the freezer, and then pulling it out and hitting it with a hair dryer. The mold and the plastic will both heat up, of coarse, but the metal will get hot much faster than the plastic which might allow it to expand at a faster enough rate that it you might be able to just pop it off at the right moment. You could also try to lubricate the male side of the mold itself with water before starting, then throwing it in the freezer and just allowing the water in between the mold and the part to freeze, expand, and pop the part off pretty uniformly. Kind of like how tiny drops of water seep into the cracks and concrete and cracks it apart, but in a controlled way.
@jallapeno2424 жыл бұрын
These two pressing videos are he first two vides i watch from your channel. Very interesting and entertaining. I work as a design engineer and designs productions machines towards the med-tech industry so designing and produce parts is my day job. The funny thing with your iterations it that they follow my mind exactly, When you do each test and get the result, my mind goes, hmm, maybe i should have tried to do this instead, and the next step is you doing exactly that, the same idea that i had. One idea that would be fun to see you try is to shape the edge at the samt time. So you get fillets all round the edges and an more rigid/stable part. By doing so you can make a recess that you fit the plate in to align it, then when you press it goes down into the form, forms the metals with rounded edges and it should be no problems to remove it. You might also be able to combine it with the rolling molds to make sharp 90° edges all around at once, That would be really impressive. Keep up with vids, I love them, The deeper and nerdier, the better :)