I take the FIRST step to making my own rotary engine parts.

23.02.2021
209 147 Näkymät

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Kommentteja
  • Rob Dahm looks like a young John Peters. Went from cabinetry, to machining rotary engine parts. Darn whippersnapper.

    Guns Cars and DigitsGuns Cars and Digits2 päivää sitten
  • Ok your a super dork man lol. But very cool video 😎!

    Kevin GarrenKevin Garren4 päivää sitten
  • So many uneducated rotor fanatics on here... The Rob Dahm fan boys club..! All learning together you fellas..! Lmao...

    Anthony NAnthony N16 päivää sitten
  • Your a very very long way off machining main engine components..!

    Anthony NAnthony N16 päivää sitten
  • Rob "overestimate lets say eh... 8 inches"

    Tyler AbellTyler Abell21 päivä sitten
  • I had no idea that drilling hole is that much interesting

    Michal KněžekMichal Kněžek22 päivää sitten
  • Spot, drill, circle mill, ream/bore. Most accurate process you will ever produce.

    aschnaub1aschnaub123 päivää sitten
  • Rob when the local Napa asks is it a 4 or 6 cylinder did you just assume my engine?!?!?!

    Carter ShutlerCarter ShutlerUukausi sitten
  • Australia is metric but utilising both imperial & metric gives a much better idea. Using collet chucks & m/c drills with Morse tapers & matching Arbors wherever you can, Centre drilling first(always), drilling in stages up to allowance for reamer, locking table sideways before starting the cut. Short series whenever you can & lots of coolant/oil 0.1mm allowance for reamer & even 0.001mm dial gauges on table when cutting to see any movement. Always making sure temperature of material doesn't rise. 20.5 degrees Celsius when measuring. I see many not measureing temperature before measuring work. Good stuff for me as skills have to be honed & tested for my own confidence. Cheers & hope any suggestions help. You look & sound more than capable. Cheers

    Christopher WrightChristopher WrightUukausi sitten
  • I’m willing to buy 20b engine from you... I wish you make chance to many people who suffer from the price and parts doing 20b swap.. $15000 for 20b is crazy.

    Miles LeeMiles LeeUukausi sitten
  • You should invest in a boring head kit. D'Andrea makes a great kit.

    andremichel69andremichel69Uukausi sitten
  • Rob can/will you share the CMM/CADCAM data? Can it be purchased?

    John CalmaJohn CalmaUukausi sitten
  • Can you please address the EPA trying to kill our car culture and community and some of our lives if you do not know the EPA is trying to ban everything car related including tuning, boost and many other things. We are under attack we need to address this now before it becomes too late. We can counter this if we gain Support for the RPM act the link to SEMA's page on it is listed below. Please give support so we can keep the car culture alive. To give your voice and save this thing we love go to www.sema.org/epa-news

    thomson himesthomson himesUukausi sitten
  • I think you can call yourself an automotive engineer by now.

    081588101081588101Uukausi sitten
  • Deutschland war im Video. Leute der Kommentarbereich gehört jetzt uns.

    Lucas WeinzierlLucas WeinzierlUukausi sitten
  • OMG... This security cam footage is... I Feel bad if i laugh about this mishaps.

    MillbostropobatorMillbostropobatorUukausi sitten
  • Are you looking to have your new creations modeled into SolidWorks? I own my own software.

    Kevin HuffordKevin HuffordUukausi sitten
  • A “jobber” drill bit mainly refers to the length in modern times. And, if the fit between the dowel pins and crank case holes were within .001” you wouldn’t be able to slide them in and out. I do love your cars though, good work.

    Quentin FuselierQuentin FuselierUukausi sitten
  • I wonder what a Dahm rotary is gonna cost and if he’s gonna go in and build code to cut billet replacements for the Renesis 2? I would buy a full Dahm renesis 2 replacement for my R3 and turbo the f*** out of it.

    Charles SchwabCharles SchwabUukausi sitten
  • You know that you could actually mill these holes 😂😂

    Manuel MayerManuel MayerUukausi sitten
  • next.... all copper ringed gaskets for atleas 4 bar boost pressure...

    Bart de GrootBart de GrootUukausi sitten
  • I love nerdy stuff like this. Awesome.

    Alex ChapmanAlex ChapmanUukausi sitten
  • Just a heads up Jobber drills are shorter length drills that walk less than a standard drill.

    No ThanksNo ThanksUukausi sitten
  • Why did you steal glasses from my grandpa?

    kubeekkubeekUukausi sitten
  • That intro to the keeps HAAHAAHAH im dying im sorry that happened though

    ColtonHColtonHUukausi sitten
  • Hello from Haas F1!

    Scotty HScotty HUukausi sitten
  • I got keeps just for rob.

    Trent ThinksTrent ThinksUukausi sitten
  • you and Fireball Tools YT should collab on some of these parts, he has some Siiick super accurate tools

    Michael LeoneMichael LeoneUukausi sitten
  • So when you coming out with robtary precision billet engines for sale

    Alex AcostaAlex AcostaUukausi sitten
  • And the winner goes to!! "sadly it might be long but it is Not thick" hahaha. jokes aside this is so cool!

    Sumo MikeSumo MikeUukausi sitten
  • Rob says "How do you polish a hole?" Answer "Just ask my girlfriend"

    Robert JonesRobert JonesUukausi sitten
  • Tavarish needs you :)

    Monkey BaseMonkey BaseUukausi sitten
  • I wonder if you could put a thread on the rods and a corresponding thread in the larger iron parts, would require some calcs to get it all lined up but with the longer engines might help clamp the sections better. Of course I may be talking out of my exhaust :)

    Gordon McgregorGordon McgregorUukausi sitten
  • god damnit rob stop misusing terminology

    AUSTINAUSTINUukausi sitten
  • Drill and reem

    Cole CorbinCole CorbinUukausi sitten
  • “That’s a pretty good hole” -papa Rob, 2021

    Luke ShehigianLuke ShehigianUukausi sitten
  • Spiral fluted reamers may help you avoid chip pileups at the bottom of blind holes.

    Christopher LenahanChristopher LenahanUukausi sitten
  • Is that a renishaw probe ?

    dave bartondave bartonUukausi sitten
  • Inb4 he starts making gearboxes

    NeymanNeymanUukausi sitten
  • Find a way to contact me. I can get you any combo of reamer you need. Consider using piloted reamer’s for your final sizing, to maintain your positioning. With your tooling, a pilot of the existing hole size will help eliminate the runout you are concerned about. Tell me what you need, and I can make it happen. Thrilled watching your enthusiasm for the rotary. My first car was a one-owner 73 Rx2 coupe. I had it for 30 years, and sold it to a NZ enthusiast, so it could live on. I ran out of sources for parts and expertise. I guess I bailed out about 6 years too soon! Keep going!

    Darryl CavanaughDarryl CavanaughUukausi sitten
    • I can get you double margin drills to get you started, and then core drills to get you to the reaming phase, so you are not making such large cuts from the start, which should equal less variance. There is always another way to get where you want to be! I drill large holes, using hand drills, that require .001 tolerances, for a living. With your equipment, it should be a cake walk!

      Darryl CavanaughDarryl CavanaughUukausi sitten
  • Fascinating! Excellent tutorial. You have crossed over to true nerd city!

    Jim DanielJim DanielUukausi sitten
  • Machinist basics 101 I'm so hype to watch this all unfold

    Zach FitzgeraldZach FitzgeraldUukausi sitten
  • every machinist just cringed when rob rotated the reamer against it's cut direction. If you do that often you break the cutting edge.

    Mas TeXMas TeXUukausi sitten
  • hello im cesar i have a question the facts from the car and all what you gays make eniting can give pleas in the gays wo is work whit my tim you brother is bath whit me and shi want the car you nao:)

    Cesario martins diasCesario martins diasUukausi sitten
  • You can start building and machining your own engines!!!!! This is Awesome!!!! Next episode, the world's first side by side 10 rotor?

    Gidgets & GazmosGidgets & GazmosUukausi sitten
  • I would not call what I used to do "precision" fabrication, but I would always drill each hole 3 times, working up in size each time. I didn't have precise tooling, so I improvised.

    KB9OAKKB9OAKUukausi sitten
  • The keeps ads are just getting better every time!

    Bence Gábor SlezákBence Gábor SlezákUukausi sitten
  • Rob becoming more and more legit everyday, from rotary nerd to custom parts manufactuer. Just imagine when Rob starts supporting other builders with his own parts, awesome stuff.

    Wind of changeWind of changeUukausi sitten
  • Me watching robs videos pretending to understand all the numbers he saying.... MiLl GoEs BrRRrRr

    Javier AvalosJavier AvalosUukausi sitten
  • Mr. Dahm you should link up with Tavarish he is building a Mazda rotary engine. That would be an awesome.

    AdamAdamUukausi sitten
  • Rob dont use them wobbly ass tables for your motor! Please for the love of rotarys.

    Chris BradleyChris BradleyUukausi sitten
  • Bro, use a reamer after the hole is drilled.

    John FamilyJohn FamilyUukausi sitten
  • Rob stop thing of that milling machine as a High dollar drill press! The thing will make perfectly round holes, you first drill a smaller hole, big enough for the milling bit you going to use to fit in, then you program the mill to take out all the remaining in material out in steps to under .05, then you make one final pass to size using long fluted tool bit in one cut. I've been a machinist my whole life and when these CNC machines came out we all had to change the way we did things, and once you learn how to use them you can mill stuff to within .003+/- with very simple programming. I wish I was close to help out. Also, I haven't seen which software you are using to program with, or if you even have one. If you don't get one, programming by hand on the console is the hardest way and also the easiest way to make mistakes. GibbsCAM CAD/CAM is what I would suggest if you don't have one, if you do have one let me know what it is, and I'll see about getting it or going over it to see its features. Might be able to do some side programming for you.

    byteme285byteme285Uukausi sitten
  • I hope you're talking to Ernie Brink if you are going to make your own engines.

    lousbitslousbitsUukausi sitten
  • is there not a torque rating for that tool holder for that screw that you should be using a torque screwdriver for?

    Collin EverettCollin EverettUukausi sitten
  • one day people will say "how the hell did you afford a dahm motor"

    Texan NationalistTexan NationalistUukausi sitten
  • So many numbers my brain hurts

    J. RJ. RUukausi sitten
  • You're not a "Countryist" we Germans love it, when people from around the globe appreciate our precision technology. If I've learnt anything from living here my entire life and my experience in tech highschool, it's that if there's a very niche technology product, that only about a hundred people in the world could be interested in, a German company probably makes it and it probably has no serious competition.

    tim watztim watzUukausi sitten
  • You are really the Brandon Herrera of CarTube.

    tim watztim watzUukausi sitten
  • I work for a company that manufacturers high precision cutting tool its called M.A. Ford MFG. definitely check us if you want high precision cutting tools

    Ricky MalinowskiRicky MalinowskiUukausi sitten
  • Couldn't watch the whole thing, you need to hire a real machinist. Or at the very least call a reputable tool company like Guhring and get the proper tools for making holes. You need to leave the proper amount f material for a reamer and feed it at the proper speed to achieve the desired size. You are not close.

    Jack HoffJack HoffUukausi sitten
  • now rob doesnt have to worry about pesky delivery companies who might like the look of his engine shaped packages

    goiZgoiZUukausi sitten
  • In the end of the code use "G91 G28 Z0 Y0" makes the table come to you. If you want you can divide the code into two movements if you are close to the part. "G91 G28 Z0", "G91 G28 Y0"

    Jengan RacingJengan RacingUukausi sitten
  • never turn a reamer backwards!!! By the way im pretty sure its a 16H7 or H6 hole. So with an 16.00 reamer it would be perfect fine.

    ZonkobelZonkobelUukausi sitten
  • Quick tip: Spot hole Pre-drill to .01 undersized Drill .001 to .002 under nominal Finally ream to final size.

    Aron BennettAron BennettUukausi sitten
  • I just hate how you use approximately...just measure first then use...and just use metric if you need precise measurements. The imperial stuff is just overly confusing and useless.

    MultiNillzMultiNillzUukausi sitten
  • G Code for the Win

    JUSKENZJUSKENZUukausi sitten
  • and this is what happens when you want the best and no one that you can find makes it.

    MeatsweatsMeatsweatsUukausi sitten
  • Just so you guys know: Rob's long-term vision is to start his own rotary supercar company.

    J. PročkaJ. PročkaUukausi sitten
  • Need some shrink fit holders

    Tommy NordinTommy NordinUukausi sitten
  • Yo Rob I can change tires and shit hit me up I need job plz

    Garret GillespieGarret GillespieUukausi sitten
  • why's it got a haas logo on it at the start of the video

    Tasquizz TaylorTasquizz TaylorUukausi sitten
  • I loved working on the HAAS, terrible tool changers if it was dirty, but everything else was great, well the coil style chip auger was terrible unless the material was literally 1mm chips. I ran a lot of older model HAAS FANUC style machines. Your tool selection I'm jealous of, you're production quality now!

    ThalixThalixUukausi sitten
  • That was a stupid ass place to put a $60,000 engine. On a flemsy plastic table. Come on.

    Justin'z SRT8Justin'z SRT8Uukausi sitten
  • Could of used a .5 4fl endmill an interpolated the hole. But I don't no how tight you have to hold your position of the holes.

    kenny padykulakenny padykulaUukausi sitten
  • "I like to overestimate the length - we're gonna say it's 8 inches" Me too, Rob...me too.

    John KennyJohn KennyUukausi sitten
  • titanium 4 rotor??????????

    DeHaasDeHaasUukausi sitten
  • I am a fan of shrink fit collets and I get extremely low(so low I have nothing that accurate in shop to measure it) run out, also tool length is a big factor in accurately drilling holes

    Mitch greenoMitch greenoUukausi sitten
  • "i want perfect" lol

    Old dude bicyclingOld dude bicyclingUukausi sitten
  • Agggggggg

    Sean BSean BUukausi sitten
  • @Rob 13:58 Grabbing an end mill like that and yanking on it you're one step away from a trip to the ER. Only hold them at the shaft and whenever possible wear proper kevlar gloves.

    protatorprotatorUukausi sitten
  • Rob that’s still going to run out like crazy drilling with an endmill. Go boring bar or circle interpolate with an endmill after pre drilling the hole to get the stock out.

    Ed FinnertyEd FinnertyUukausi sitten
  • Aren't you just assuming the holes are accurate in the part your using for measurements?. They could be off?.

    asambi69asambi69Uukausi sitten
  • you have to do it yourself!

    aw11aw11Uukausi sitten
  • Yeah I see that new fender on the 4 rotor. You can't hide from me

    DJ GarrisonDJ GarrisonUukausi sitten
  • Per Adam Booth .. never turn your reams backwards

    Hyde WhyteHyde WhyteUukausi sitten
  • I'm so glad I'm not the only one 😅. When I was rebuilding my 12a for my FB my plates dominoed too.

    Cyco SmileCyco SmileUukausi sitten
  • Take a shot every time Rob says hole. 🕳️

    Ti MTi MUukausi sitten
  • This a little basic over explaining. 2 stroke stuffing shimming the guardrail on the different axels x and a and. Yto get the right tolerance in the play.. Way more entertaining and insightful. He I also preparing to machine engine parts.

    Niklas HultkrantzNiklas HultkrantzUukausi sitten
  • 19:18 please go slowly with the reamer

    Oscar ThorpeOscar ThorpeUukausi sitten
  • 2:05 im guessing a Ream because I used those at college for boring exact holes

    Oscar ThorpeOscar ThorpeUukausi sitten
  • 16:55 jeeves shittie tools its not rocket sciens

    Broo_shBroo_shUukausi sitten
  • there is dial pins lathe or drill press just drill it close and use reamer in end to get it right and key is at you drill it little by little its same what kinda drill heads you have all tools have their tiny tricks to make it optimal

    Broo_shBroo_shUukausi sitten
  • No you are not making a "billet" iron! Because like so many other parrots you don't even know what billet really means and why it is the most misused word in all the tuning car communities around the world. And like the other parrots you just keep spreading nonsense.

    Dalai's DramaLamaDalai's DramaLamaUukausi sitten
  • those high feed protection moves on that probe had me clenching my butt cheeks, also why did it orient when probing one of the holes? that would technically give you some grey area since it should probe the holes at the exact orientation that you calibrated the ruby at.

    sprinten8sprinten8Uukausi sitten
  • you must learn and watch videos where they talk about tools and drilling and rest of cnc and lathe stuff

    Broo_shBroo_shUukausi sitten
  • Uuuuu, another milestone! ;-) good work!

    Fabiek10Fabiek10Uukausi sitten
  • why not just pocket mill the hole then ream it?

    AmeraldasAmeraldasUukausi sitten
  • I dnt understand why building this engine is so difficult. You’d think the rotary community would’ve made this easier and cheaper

    Ken XiongKen XiongUukausi sitten
  • DAHM... "EVIL GENIUS"

    1993kawasaki1993kawasakiUukausi sitten
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