Pringle Can Rockets! - My best worst idea yet

What can I say? I don't like to throw things away. So I tried to make some model rockets out of household rubbish. Had lots of fun with this one!
#diy #homemade
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[@Turnah81]

Hi guys! Good news, at this stage I'm looking at hitting KZbin full time so get used to seeing this face more frequently! If you would like to support this gigantic leap of faith I'm taking, feel free to show you support through subbing, commenting, sharing this and my other videos or simply by angle grinding some stuff unnecessarily. My Patreon link in case you are able to assist there: www.patreon.com/CraigTurner You get early video access and some more behind the scenes stuff (probably me nerding out on very specific aspects of videos that were cut.) But huge thanks to everyone for the support. Lets have some fun! 👨‍🏭🔥

[@AnthonyRobledo-ce8jl]

The bottle rockets issue is probably the mass distribution being focused in the nose, so it flips over, killing its speed. Another factor is likely that the bottle is just too light, so it leaves the launch pipe before the thrust gets fully applied.

[@zncon]

Thrilled to see you post a new video, and here's hoping for many more!

[@Turnah81]

Yeah, cool. It is a bit lighter than the cans. Maybe that is partly why the water version generally goes better. Thinking maybe bigger tail fins too. Reach outside turbulence

[@josephj7387]

Yaaaaaaaay !!!! This is excellent news!

[@scamcorp]

yay my friend your back how many months has it been

[@kwhite621]

"I picked this up for free from a hospital that had been using it as part of a catheter kit" -while blowing in it 😂😂😂 subbed

[@Lippdinos]

I'd hate to see the size of the urethra after they fit that in!

[@firstmkb]

@@Lippdinosthat one nurse was DETERMINED!

[@THETuerre]

The sequence of the double Pringle can into the dashcam crash is BRILLIANT!!!

[@Derek_Monk]

I read your comment before getting to that part and was like O.o I had a good laugh. This is the first time I have seen this channel. This guy has a good sense of humor.

[@-danR]

I especially like his casual satisfaction with the result.

[@Rabiddonky]

@@Derek_Monk i died laughing when he first discovered the bounce of the pringle nose cone and the ceramic cup not bouncing as high haha

[@PatrickBaptist]

Man I had to rewatch that a few times it was so funny.

[@MADEINNSW]

Actual engineer here: Fin size could be bigger but its not the main issue. For a rocket to be stable its similar to a throwing dart. The center of mass needs to be ahead of the center of pressure in order for the rocket to naturally point upwind. This means you need to add mass to the leading nosecone so the mass is now ahead of the center of pressure (just infront of the fins). This added mass also gives the rocket more momentum, and will use the energy from the gas over a longer period of time, creating higher altitude.

[@tuppyglossop222]

Another actual engineer here too. The pvc pipe should not be pushed right to the top of the rocket. When the flame starts at the top, it pushes unburnt fuel out the bottom. More fuel burnt in the body means longer thrust duration.

[@TentoesMe]

Flying Estes rockets in the early 1970s, I was going to say the bottles have the center of mass behind the center of pressure😉

[@larrybremer4930]

I was rather underwhelmed by the whole affair. It seems like 80% plus of the launch energy was more of a mortar shot than a rocket. It was also hard to judge in the video how long your best flight duration was in the vertical but I used to measure flights using a stomp rocket with a stopwatch that exceeded 5.8 seconds and seemed longer than the best launch I observed here.

[@SamwiseOutdoors]

I learned that when I put C-size motors into an Estes rocket kit designed for B-size motors.

[@mjproebstle]

Yet another engineer and model rocket enthusiast checking in - We launched 2 liter plastic bottles under pressure with water. We had the kids cut out larger fins out of cardboard, mount 1 meter long xmas wrapping paper tubes on the front end with a styrofoam 12 cm cone found at the hobby shop mounted on the end of the paper tube for a nose cone. This gave the proper weight and balance. and also provided better longitudinal stability. The rockets flew 100 meters hight, and floated down sideways, allowing them to be caught and used again. BIG FUN was had by all. Cheers!

[@SimonDiamondGamer]

Im glad you're still out there doing funny shed projects with easy to find objects

[@drjekl44]

Shush

[@gazman50s]

that bit with one landing on the road had me almost falling of my chair backward with laughter

[@Youtuber-k2p]

That was genius.

[@tukyrer]

Is that real?

[@LP620]

@@tukyrerno lmao it was just an edit

[@eamonia]

Yeah, I think I pooped a little.

[@boomfiziks]

I do a similar project with my physics students. The way that we check to see if the rocket will be stable is by doing a simple test. You just need about 1-2 meter of string. Attach one end of the string to the rocket’s CG. The rocket should hang horizontally. Then, holding onto the opposite end of the string, spin the rocket over your head. If the rocket aligns itself so that the nose aligns into the direction of flight…you’re good. If the rocket is angled a bit/perpendicular/backwards, either increase the nose weight and/or increase fin size.

[@obese_microwave]

what i learned from this video - yes, yes you can - do not mess with this man

[@TS_Mind_Swept]

Yes you Pringles can? ;p

[@universalparadoxes2081]

The sarcastic self depreciating commentry really sets this video appart. Plus rockets :)

[@MidnightMaker]

The diameter of the thrust on the Pringles cans is the same as the diameter of the rocket. This causes stable thrust vectoring. The soft drink bottles have a much smaller diameter of thrust vs. the body of the rocket, which causes thrust vectoring instability because there's mass and drag outboard of the thrust vector. Loved this video and subscribed.

[@jddjTube]

I'd guess instead that the center of mass of the pop bottle rocket is very close to, or behind the center of pressure. This creates an unstable rocket. Just a little bit of added weight near the nose might have straightened this instability problem out. Maybe a few large coins taped on. Hobbyists use a rule of thumb that says the center of mass needs to be at least one rocket caliber forward of the center of pressure.

[@islandbirdw]

Say could you combine your love for rockets with scaring off the neighbors cats?

[@mikek4288]

Orrrrrrrr, see if a cat can be a rocket? Hes made a few do vertical takeoffs!

[@jobird354]

They're my favorites 😆 😂😂

[@Youtuber-k2p]

@@mikek4288that would be a 4 x double Pringle rocket cat AND you can guarantee that it would always land right side up!

[@solarsynapse]

@@islandbirdw Cats "love" glue traps. 😏

[@seventeenshaun6424]

For the 2L bottle. I’d say that your center of gravity(cg) is behind your center of pressure(cp). To fly stable, it should be the other way around. You can add weight to the front of your rocket to make the cg higher

[@matter9]

Great combination of “easy” fun crafts, and humor at every opportunity 😂👍

[@paulstephenson5311]

This is one of funniest, coolest uploads that I've watched in ages. I need to do this... I'm 62 year old....

[@Yattayatta]

"We couldn't figure out what happened at first, but looking at the data we found out it flew like an absolute piece of crap" hahahaha, I'm dying.

[@mikestanley9176]

Tried this in the States. Am now on every three letter agencies watchlist.

[@Studio23Media]

Dude, there are Americans on KZbin that are building guided missiles... 🤣🤣

[@j_taylor]

The roughest TLAs are the Future Farmers of America and of course the Parent-Teacher Association. 😁

[@josephj7387]

Ah man this guy always has me in splits! It's not even been 30 seconds!! You are a treasure mate! Cheers from Bengaluru India❤

[@IIIDoggeh]

Glad to see you back at it! Love the quality!

[@Turnah81]

Hey thanks mate!

[@seeshmuro]

A weighted nose to preserve momentum and slightly angling the fins to give it a spin for stability can make a huge difference. I learned this from pressurized water rockets.

[@pieterpretorius1014]

pvc bottles are pretty light so they fly like crap. those pringles cans flew like darts

[@Hamletjsd24]

This 100% works with water rockets, it'd be worth trying here. Weigh down the nose cone and try again.

[@skyvenrazgriz8226]

Water bottles have aft weight that also helps a lot

[@solarsynapse]

Add large washers between the cone and bottle for weight.

[@paradiselost9946]

there was a period i was gluing some lead inside the ends. then using a balloon on the end of a pipe jammed inside the bottle. fill balloon with water. always meant to do one with a cylinder and piston, much like a syringe... water coming down a central pipe in the piston. and then later tests with tailpipes proved just the tail added enough stability to get the same sort of distance... wasnt just about nose weight? shame you cant get the old style bottles when the bases were still round and they had a separate cap glued on.

[@elmofeneken4364]

This is one of the coolest videos I've seen in a long time. Well done.

[@theshoreys4741]

I love the comedy you add. Thanks for the laughs.

[@ConwayBob]

As a complete newbie to your channel, I found this video immensely therapeutic. Laughter IS the best medicine!

[@Napstone]

Seeing a blue flame move in a discarded transparent hospital tube, is something I wasn't expecting to see today! ... Very kool visuals! Good job!

[@Turnah81]

Cheers glad you liked it!

[@byron.]

I’ve flown a fair few water rockets, the simplest of which are just a 1.25L soft drink bottle with 3 fins (not even a nose cone!), a nozzle and roughly 1/3 water 2/3 pressurised air. If done right they’ll go well over 50m high. (In my unprofessional view) there’s 3 major differences between the most successful water rocket designs and your rocket bottle. 1. Ballast: in a water rocket, a fair amount of the water doesn’t make it out of the bottle until after max height (apogee is the technical term). This adds a lot of mass to the bottle, increasing its momentum, so drag comparatively exerts less of an effect. 2. Thrust time: in your rocket, all thrust is finished within about a meter of leaving the launch pad. In a water rocket with a well designed nozzle, the thrust will only stop just before apogee, lasting a second or two. 3. Fin size: Your fins are simply too small for the size of your bottle. I think your biggest issue with the soft drink bottles is they have almost no mass. So although they get a lot of speed early, they run out of momentum fast. Unfortunately adding lead weights as ballast is likely against the Australian rocket code, but you could add a bit of mass by putting a decorative cardboard tube around the bottle and making a bigger, heavier nose cone. You could counteract this issue with a small diameter nozzle, so that the thrust lasts longer, but that gets complicated fast, and might end in your bottle becoming shrapnel if you generate too much constrained pressure. In either case, larger fins are a good idea, but without a more efficient utilisation of your thrust, I suspect this will just result in a straight, but sadly slow and low flight. I think that for propane rockets, a pringles can is actually surprisingly optimal, and you’ll struggle to beat it. *** Please do not take this comment as a guide on how to build a rocket (of any type) out of soft drink bottles. They are surprisingly strong, but they can and will explode (especially if modified in any way or exposed to high heat at any point prior to pressurisation), as will other equipment you make to launch them. If any of this sounds interesting, and you are an adult, I highly recommend trying, BUT FIRST: you need to read at least a couple books on the subject, find a large unused field, and buy some very long hoses, wires, strings, etc so you can be far away (like 50m) from the action before before pressurising anything, filling anything with flammable gas, etc ***

[@r4dios1lence92]

The sound of the bounce is SO satisfying for some reason xD Also, launching anything perfectly vertically when there is no wind is WAY too much courage, specially near your own car.

[@mrdoodiehead1642]

"it didn't really go that far, it just got really high" - yeah, that's the story of my life

[@Turnah81]

😂

[@justinwilbur4094]

best comment 😂😂😂

[@cluelessbeekeeping1322]

This is what I'd do (I use to play with rockets and have messed with airplanes my entire life) - Make the fins out of balsa wood (stiffer & lighter) - use a glue like epoxy or E-6000 (do NOT use hot glue) - make the fins larger - use 4 fins vs. 3 fins

[@danhouse7565]

have the fins mounted further back, and make them extend beyond the ‘rocket nozzle”.

[@theherk]

I love this style of humor. Very fun video.

[@jmac1099]

You know, the other day I was worried that I had watched the last video you were going to make… I’m glad to see that you are still at it, and as fun and funny as always!

[@rogerb5615]

Brilliant slo-mo video, a fine and totally absurd concept, and smartass commentary, especially the Taylor Swift-shape fins. All in one video. Very satisfying indeed. Subscribed!

[@GigglingGobby]

I absolutely loved the kitty vids, and checked back many times to see if there would be any more, then gave up. Fortunately a mate had subscribed and got this new one right away, and it's truly hilarious. The quickfire almost throw-away gags have me in stitches, and the "clumsy" building process is a very clever and extremely funny way of pretending you're just stuffing stuff together when in fact it's obvious that you're highly competent. Genius in fact. And going fulltime YT? AWESOME 😁. That's it, I'm subscribed now!

[@thedarkknight1971]

Hahaha I do too... When I remember those cat videos, I often think and chuckle to myself about his impressions of the baby birds in the nests "WAHHHHH!" 🤣🤣🤣

[@DC-pm8wv]

I went the CHEAPER route with rocket launching - 3/4” pvc hooked to an AIR COMPRESSOR! It lacks the cool slo-mo effects but at only 60psi, it launches the PAPER & tape rockets excitingly high! The grandkids love it!

[@totallywacker8162]

You can make a nose cone easily by cutting a plastic wineglass at the stem and sanding the left over stump.

[@Turnah81]

☝️This is a search my brain didn't return😄. Love it. Maybe not as bouncy. But could work for other projects too

[@BrookieLikesCars]

Yay, you're back!!! 🫶 love your videos

[@TS_Mind_Swept]

The goofy 🍑 commentary is still the best part of this SuperVinlin

[@patriot692]

. . " altho the camera no longer has eyebrows" 😂 Just remembering the X-wife, when she was lighting the crappy old gas oven (no pilot light). I came home from work & she had no eyebrows 🤣

[@TS_Mind_Swept]

@@patriot692 X-Wife sounds like X-men Keepo

[@justinwilbur4094]

mate, not only are your projects great, your commentary is hilarious!!!

[@jeffmccrea9347]

. In the 40's 50's 60's and up to 1974, my father worked in the apparatus and optical division of Eastman Kodak Co. in Rochester New York as an electromechanical tech. His job was working on government defense projects, NOT involved with cameras as he was strongly allergic to photographic chemicals. On one job, engineers needed foam rubber shock mounts with as close to a perfect 1/2 hole through the middle as one could get. They tried hot rods, hot wires, coping saw blades, coping saw blades sharpened to a razor edge on the back side and surgical scalpels. They were going crazy with this problem. They took one to my father, gave him the specs and asked his opinion. He said, "Give me a couple of hours." and he thought on the problem. Two hours later, he took the shock mount back to them with a perfect 1/2 inch hole through the middle of it. After picking their jaws up off the floor, they asked him how he did it. He dumped the coffee out of his lunch thermos bottle, went to the local gas supply company and got a thermos full of liquid nitrogen. He went back to work, poured the liquid nitrogen into a can and dipped the foam into the cold liquid for a minute or two. When he pulled it out with tongs, the cold had condensed the gas bubbles in the foam which made his sample almost flat. Before it warmed up, he took the foam to a drill press loaded with a 1/2 inch bit and proceeded to drill a 1/2 inch hole into it like it was a piece of thin wood paneling. Just goes to show you that you don't have to have an engineering degree to have good ideas.

[@BrianHigginbotham-do4hm]

Thanks ive been having a rough week, but your accent added to your humor did wonders for my mood.

[@disgruntledegghead6923]

That bit with the pringles cans causing the accident had me in tears 😂 Well done mate, well done.

[@satchice9102]

Science, rocketry and comedy. KZbin knows what I like. Subscribed!

[@richardtheeighth4431]

The bottles are terrible at flying because they get drunk. 🤪

[@Youtuber-k2p]

Well played!

[@dadthefixerflorida]

I love the commentary during the video. The dry humor and sarcasm is great

[@Catfoolyou]

Thanks for reminding me of the stupid rocket-related experiments I did during my 1st year of high school. Time to get back into this stuff.

[@zzyzxPL]

In the early 80s we have Pringles tennis ball cannon fight. A small hole and a drop of cologne. Strike a match and rumble!

[@-dirk-65]

Built rockets with my sons in the early eighties. WHERE you put fins matters? : ) nose cone assembies as well. Thanks for the laughs & the memories. I shared it with my oldest in Germany & here's my FAT thumb up for all the effort.

[@teddysoft]

Not even 2min into the video, and i have had the best start this Sunday morning 😂😂! Keep up the good work!

[@Turnah81]

Cheers man. Glad you enjoyed it.

[@SHRBJHD]

I am never ever let down to find you in my feed. Thank you for existing and letting us get to take part. I'll cook ya a burger if you're ever in AZ!

[@stevesandford7442]

The bouncy cup, and the electricity glue gun got me!

[@helenault7452]

Unlike superglue, you'll never stick your fingers to your eyelids with the electricity glue.

[@gizelle-s]

Awesome video, glad to see you are back!

[@primedirective00]

The creativity in your construction designs is great lol. I would not have thought to send the flame down the tube and used something more like a potato cannon but this design is fun

[@justaperson8560]

😂😂😂 the hospital hose killed me

[@jimballantine4408]

Glad someone else has noticed that 😅😅

[@davinlaroche3029]

Last week, I was going through all the channels I subscribed to and came across yours. I watched the last one from a few years ago and wondered where you went. Then this one pops up. Glad you're back!

[@Turnah81]

Hey mate, thanks for the support. I have another from a few months back, but think I need to organiser my youtube home page better🤔. Maybe have most receint ones at the top. Cheers again.

[@c0rrupted-Image]

Been waiting patiently finally the day is here, can't wait, love your content

[@Turnah81]

Cheers mate. Thanks for the support !

[@cswakw7492]

You should try taping a metal washer to the front end of the 2 liter rocket. Keeps the CG in the right place and has some momentum

[@neilnk4943]

strange question.... LETS FIGURE IT OUT

[@Turnah81]

The recycling bin is full of mystery and intrigue

[@adamfabing8250]

love your videos!! welcome back

[@akashicvizion]

Well, you do know that the Pringles slogan is "Once you pop, you can't stop!" -- keep on poppin', and as always, Blessed Be, & Peace! 🙏☮

[@billbauer9795]

Finally!

[@GottaKnowJoeHobbies]

Very well done. Thank you for all the work you invested

[@deathpyre]

18:00 You have too much weight on the front. The fins arent big enough to control the instability where the heavier part wants to go to the back going up

[@chrislong3938]

Man! Those flame ignition effects belong in sci-fi movies! They are gorgeous and whip any CGI crap!

[@masonstiyer4737]

Rocket go pam

[@attheworktable]

That was fun to watch and your commentary was hilarious. Brilliant!

[@maffysdad]

Am I the only one who was more worried for the car than the adults and kids... Sorry...

[@Phartan117]

Yay, a new Turnah81 video! I love this guy, his videos are hilarious! Craig, I found your videos a couple of years ago when I was attempting to make a hotwire foam cutter. Your video was both sidesplitting and actually informative. I used the rough idea from that video and made a pretty decent version of my own and I've been subscribed ever since. Good luck to you Craig, I hope you find massive success. You deserve it.

[@Turnah81]

Hey thanks heaps for the support. Yeah still handy the hot wire cutter. I made a small hand held version too. Actually also used it for making face masks in 2020

[@mikemartin6165]

Fun video. You desperately need a 3D printer.

[@TheZombieSaints]

Best time to buy a 3d printer too. Prices have really dropped

[@mikemartin6165]

@@TheZombieSaints Get something that is direct drive meaning the extruder sits directly on top of the hotend. I just got an FLSun V400 for half price because it had been returned to the store with a few things missing. It's nice!

[@ltdees2362]

🤣I'm also a dad who never grew up & our two daughters has the same dna...we are constantly teaching our grands how to create wild and wacky fun along the way...the possibilities are endless 😛

[@austindavis4708]

I love the sound a Pringles can makes when it bonks on stuff.

[@stevekuxhausen7981]

I like your wry humor and ingenuity.

[@AscenderRockets]

The best fin for your bottle rocket is a Ring Fin. Made from the cylindrical section of another bottle and attached behind the rocket with rods or skewers

[@henryisnotafraid]

It's the comedy that keeps me watching

[@TheBoss_4151]

Professional stay at home dad here, kids LOVE rockets. I challenge you to fill that pringles can with some cheap sugar/potassium nitrate solid state propellant and film it landing on the moon 12 minutes later. Nobody will have a bad time. Subbed!

[@ben31tube]

Your videos are ALWAYS welcome! They are hilarious!

[@StormBurnX]

I have literally never thought of using a sander on EVA foam, this changes everything for cosplay prop making

[@Brian-mp2mv]

In Rocket testing... "Where the hell did it go?" is always a good sign!

[@thombone]

I love watching videos made by people who don't know what they are talking about yet are more than willing to humiliate themselves in epic fashion anyway. 😊

[@MrGorethrasher]

The comedy is gold! And the science... right up my alley

[@sloperdad4835]

Great exercise! Really good humor too. 😂

[@jeffbutler]

One of the most informative and funniest things I've watched in ages, well done sir.

[@paulnelson5314]

A couple of years ago my grandson and I made and launched several Pringle can rockets with traditional model rocket motors. Three or four cans joined together with a foam insulation nose cone, and an old umbrella for a recovery parachute. Good fun!😊

[@com1divertc961]

I liked many times and subscribed to your channels. Your facetious remarks are hilarious. We all need a good laugh given the times. Love your cat deterrent contraptions.

[@Turnah81]

I appreciate that, cheers for the support

[@r.awilliams9815]

If we had these when I was a kid, we would have had Big Fun ambushing each other with them. Yeah, they would hurt some, but so did the BBs from our Red Ryders and the bottle rockets from the fireworks stands. We played kind of rough back in the 60s.🙂

[@arjovenzia]

can confirm, yes, yes they do. but the acceleration is all at the beginning, and being so light and high drag, as long as your about 2m away its only a moderate bonk. about what youd get from your mate when you farted loudly on the school bus. and the giggles are a pretty good anesthetic

[@StevenRogers-hw9dj]

We were doing this in the '70s. Tape three Coke cake together with the tops and bottoms cut out (except for the bottom of the lower can, which had a hole poked in the side), a squirt of lighter fluid around the inside top, Pringle's can slid over them, and light the hole. We rarely bothered with fins and nosecones. Back then, Coke can tops and bottoms could be easily removed with a can opener.

[@davekijek2302]

The double Pringle can rocket reminds me of the beer can cannon that launches tennis balls. I don't recall if it was 24 or 40 Oz size. Used lighter fluid as propellant. Duct tape to join the cans together.

[@SteveSiegelin]

I've been building weapons like this for years! The hardest part is keeping him going straight up when you don't want them to come back down 😂. Also human rockets have been around for years and the first one flew in the 70s. The first jet packs were actually aluminum catalyst hydrogen peroxide rocket packs. We have finally reached the point of technology where real jetpacks are a thing. We even just had our first jetpack races in Dubai this year. It was quite spectacular seeing five jetpack racers on the same course at the same time catching each other's jetwash. Again, the easiest way to make a rocket pack would be highly purified hydrogen peroxide sprayed across an aluminum catalyst pack. The same way the rocket man flew during the Olympics in the 70s and 80s.

[@wormbaby666]

Brother, I came for the experiment and stayed for the comedy. I totally lol'd multiple times. Rip In Pieces 'bouncing cup'.😂

[@JosuRibeiro]

I always watch everything in 2x on youtube and when I saw the dash cam footage I was legit scared lmao. It was so real!

[@joeydr1497]

Oh how I love the shenanigans of man in shed.

[@aegisbrax5325]

Me and my kids enjoy your vids man, thanks!

[@Turnah81]

Glad to hear it! cheers

[@vancemacd6315]

Should make this into a science kit for kids to build with parents. This would have been my favorite, maby even as an adult.

[@robert5770]

I love your commentary. I haven't laughed that hard in a while.

[@PatrickBaptist]

@1:30 HAHAHAAH, man I dunno what they were using that hose on for a catheter but I don't wanna goto that hospital JAM

[@matambale]

Craig, you might consult with a countryman of yours, who has quite the obsession with rocketry. His channel is "Air Command Rockets". He uses air/water rather than flame. Just really, really, really highly pressurized, so the danger is still there.

[@Geekofarm]

Much fun. Did something similar with the tubes whisky bottles come in to protect the contents from light. These have more available volume than Pringles cans but take me longer to empty.

[@skippyskater]

I used a pringles can stuck to a piece of chipboard as a mortar tube once for a relatively large firework, worked so well haha.

[@Mr.Scootini]

I think I’m going to give this a shot too! I’ve got most of the tools minus the torch😂

[@absurdengineering]

You are so wonderfully wacky and funny. Thank you for the top-notch entertainment and keep at it mate!

[@flymachine]

I had ever seen a flame through the tube trick in my life but thanks to KZbin in the last two days I’ve seen it at least 20 times.

[@Nifty-Stuff]

Brilliant video! Clearly a LOT of time put into scripting, designing, filming, and editing. Excellent work! (and fun rockets)

[@jaratt85]

Polystyrene or even expanding foam (like window sealer) would likely be a far better nose cone material as it's far lighter though hard coating it would likely be a must. Though shaping polystyrene without a hot wire cutter can be a serious pain. Speaking of pain.. I feel yours, I sanded into the bed of my thumbnail on a 24 inch disc sander in high school while trying to make headstones for Warhammer.