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Mentored Engineer
United States
Registrace 10. 07. 2018
Join Corey "the Coaster Man" Rasmussen as he explains all kinds of nerdy engineering stuff.
The Mentored Engineer is a resource for mechanical engineers of all skill levels, but geared for young engineers just entering the work force. The material here will minimize the time needed to get an engineer competent in his or her field.
Roller Coasters are one of our passions and we are very interested in the planning, design and building of backyard coasters. Traditionally, we all know about lift hills and letting gravity take over after that. But is a launch roller coaster a possiblity? Absolutely.
The Mentored Engineer is a resource for mechanical engineers of all skill levels, but geared for young engineers just entering the work force. The material here will minimize the time needed to get an engineer competent in his or her field.
Roller Coasters are one of our passions and we are very interested in the planning, design and building of backyard coasters. Traditionally, we all know about lift hills and letting gravity take over after that. But is a launch roller coaster a possiblity? Absolutely.
I've Finally Solved it! - Rubiks Cube
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So I'm good at a lot of things, but there are certain things that cause me to loose it. The Rubik's Cube is one of them and I usually end up angry.
I encourage you to push through these feelings and keep with it. Eventually you will succeed.....or end up swearing.
I made this video to document how I solve it while it was still fresh in my mind and all the subtleties are still new. Otherwise, I will appear as just another "expert" glossing over the process.
GOOD LUCK
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Contact Corey: www.mentoredengineer.com or www.rasmussendesigns.net
So I'm good at a lot of things, but there are certain things that cause me to loose it. The Rubik's Cube is one of them and I usually end up angry.
I encourage you to push through these feelings and keep with it. Eventually you will succeed.....or end up swearing.
I made this video to document how I solve it while it was still fresh in my mind and all the subtleties are still new. Otherwise, I will appear as just another "expert" glossing over the process.
GOOD LUCK
zhlédnutí: 71
Video
Tilley's Terror Backyard Coaster - Launch and Brake Design
zhlédnutí 102Před dnem
Join this channel to get access to perks: czcams.com/channels/8G89qtU0HMpKCuXUr1hvWQ.htmljoin Contact Corey: www.mentoredengineer.com or www.rasmussendesigns.net
Backyard Coaster Control Box Build for PLC
zhlédnutí 289Před 10 měsíci
So we're building this new spectacular coaster Tilley's Terror and the controls will be expensive. We want to layout our control box without wasting material, so how do we do that. Quite simple, we use the paper doll method. For those of you under 40, paper dolls were a kids toy where a cardboard cutout of a"semi-naked" (usually) female came with clothes that you could dress her up in. The clot...
10 Tips for Your Controls Enclosure - PLC Design Guide
zhlédnutí 285Před 10 měsíci
Join this channel to get access to perks: czcams.com/channels/8G89qtU0HMpKCuXUr1hvWQ.htmljoin Contact Corey: www.mentoredengineer.com or www.rasmussendesigns.net control enclosure to hold my programmable logic controller (PLC) and Human Machine Interface (HMI). There are some tips here that can make the difference between a box that lasts a few months to one that lasts for years. Especially sin...
Widow's Revenge POV - Backyard Coaster
zhlédnutí 357Před 11 měsíci
Join this channel to get access to perks: czcams.com/channels/8G89qtU0HMpKCuXUr1hvWQ.htmljoin Contact Corey: www.mentoredengineer.com or www.rasmussendesigns.net Schedule time with Corey: mentoredengineer.com/consulting/
PLC Control System for Our Backyard Coaster
zhlédnutí 481Před 11 měsíci
While it may not be glamorous, programming the PLC and HMI is an integral part of the Tilley's Terror Project. This coaster is going to rival a real coaster with its control system. There's just one catch...... I've never done this before. I've never programmed an HMI or used closed loop controls to charge capacitors and monitor voltage. So, let's learn together. Join this channel to get access...
My Top 20 Coasters & Making Hard Decisions Easier
zhlédnutí 204Před 11 měsíci
Join this channel to get access to perks: czcams.com/channels/8G89qtU0HMpKCuXUr1hvWQ.htmljoin Contact Corey: www.mentoredengineer.com or www.rasmussendesigns.net Schedule time with Corey: mentoredengineer.com/consulting/
Offering Advice on the Green Boa Backyard Coaster
zhlédnutí 282Před 11 měsíci
Check out www.youtube.com/@CoasterPack for more on the Green Boa In assisting a young enthusiast with the creation of a backyard roller coaster, I provided guidance for three fundamental aspects of the project: cart construction, support structures, and basic principles of physics. By detailing design considerations for the coaster cart, I made some suggestions to ensure a harmonious balance be...
5 Ladder Logic Functions - PLC Basics
zhlédnutí 458Před 11 měsíci
If you want to implement some automation at your business, PLCs are the way to go, but it can be super difficult to get started. Let's dive into some basic commands our PLCs understand using Ladder Logic. These 5 commands are so powerful that little else is needed to do so many tasks. Get started today. Join this channel to get access to perks: czcams.com/channels/8G89qtU0HMpKCuXUr1hvWQ.htmljoi...
What is Ladder Logic? - Controls Wiring Simplified
zhlédnutí 172Před rokem
Get your FREE ladder logic templates here: mentoredengineer.com/clean-up-messy-wiring-diagrams-and-schematics-with-simple-ladder-logic/ Join this channel to get access to perks: czcams.com/channels/8G89qtU0HMpKCuXUr1hvWQ.htmljoin Contact Corey: www.mentoredengineer.com or www.rasmussendesigns.net Schedule time with Corey: mentoredengineer.com/consulting/ I'm often asked the question, "It is so ...
Launch Drum Design - Tilley's Terror Backyard Roller Coaster
zhlédnutí 276Před rokem
I Need Your Help! Projects like this are expensive and take a while. I need help. I've created a CZcams Membership channel to help others design and build your own backyard coaster. Take a minute to check out the channel. Perks of joining are: Invitation to Ride Once Complete Shout out in up coming videos Your name engraved on a plaque to be mounted on the coaster Click the link here and join t...
Theme Park Predictions Rides the Widow's Revenge Backyard Coaster
zhlédnutí 547Před rokem
Join this channel to get access to perks: czcams.com/channels/8G89qtU0HMpKCuXUr1hvWQ.htmljoin Contact Corey: www.mentoredengineer.com Check out Brandon www.youtube.com/@ThemeParkPredictions and be sure to subscribe.
The Great Coaster Credit Debate - Which One Is Not a Coaster?
zhlédnutí 331Před rokem
Join this channel to get access to perks: czcams.com/channels/8G89qtU0HMpKCuXUr1hvWQ.htmljoin Contact Corey: www.mentoredengineer.com or www.rasmussendesigns.net Schedule time with Corey: mentoredengineer.com/consulting/ As I was nearing 200 coaster credits (that is riding 200 unique coasters), I wanted to make sure that my count was accurate before I left on my summer coaster trip. Provided ev...
Widow's Revenge Launch Testing: Backyard Roller Coaster
zhlédnutí 860Před rokem
Join this channel to get access to perks: www.youtube.com/@MentoredEngineer/membership Contact Corey: www.mentoredengineer.com or www.rasmussendesigns.net Schedule time with Corey: mentoredengineer.com/consulting/
What Counts As an Inversion on a Roller Coaster? Not as Simple as You Think
zhlédnutí 449Před rokem
What Counts As an Inversion on a Roller Coaster? Not as Simple as You Think
Charging Capacitors with Current Limiting (PWM Style)
zhlédnutí 466Před rokem
Charging Capacitors with Current Limiting (PWM Style)
Tilley's Terror - Record Breaking Backyard Coaster
zhlédnutí 4,5KPřed rokem
Tilley's Terror - Record Breaking Backyard Coaster
Fury 325 Crack Repair Update: What This Means For Reopening
zhlédnutí 10KPřed rokem
Fury 325 Crack Repair Update: What This Means For Reopening
How it Works: Compressors and Hydraulic Piston Pumps
zhlédnutí 709Před rokem
How it Works: Compressors and Hydraulic Piston Pumps
Fury 325 Crack! Engineering Analysis and Response
zhlédnutí 57KPřed rokem
Fury 325 Crack! Engineering Analysis and Response
Backyard Coaster Brake and Launch Design - Widow's Revenge
zhlédnutí 476Před rokem
Backyard Coaster Brake and Launch Design - Widow's Revenge
Season Pass Giveaway and Backyard Coaster Fabrication
zhlédnutí 132Před rokem
Season Pass Giveaway and Backyard Coaster Fabrication
Giveaway & Brief History of the Widow's Revenge
zhlédnutí 209Před rokem
Giveaway & Brief History of the Widow's Revenge
Cool Force Limiting Device - Cyclical Testing
zhlédnutí 342Před rokem
Cool Force Limiting Device - Cyclical Testing
Party Trick for Squaring Numbers Ending in 5
zhlédnutí 89Před rokem
Party Trick for Squaring Numbers Ending in 5
1 Minute Solidworks - Sketch Fillets and Chamfers
zhlédnutí 57Před rokem
1 Minute Solidworks - Sketch Fillets and Chamfers
1 Minute Solidworks - Sketching Polygons
zhlédnutí 63Před rokem
1 Minute Solidworks - Sketching Polygons
square balls?
Yup.....square balls
Dear Mr. Corey, first I would like to congrats your content. This is very dynamic guide to determine the dimensions of the mecanism. I read your article on your website and I have one doubt. Why did you use the distance 30,49 inch as cylinder moment arm? I thought that the cylinder moment arm would be the 39,5 inch. Can you help me to understand this point please?
Yes, the moment is the cross product (perpendicular distance) between the force of the cylinder and it's pivot. That distance is the one shown at 30.36 from the pivot to the cylinder's line of action. Please keep in mind that this will change as the cylinder extends. However, it is usually the worst case at the ends of the stroke.
So I'm curious why you put so much distance between the heater and the hot tub? Is there some heating reason I"m missing?
The propane tank is directly under the tub, but needs to be 10' away from the heater by code. That's why the long lines.
Love it!
5:51 excellent matrix
That kid rules. His coaster rules. I'll bet his rides will get better and better. Mentorship is a beautiful thing. Well done, Mentored Engineering.
Thanks, I just visited him again last week and he made all the changes to his first coaster and is started on the second.
Interested in how you increase SM without increasing the area moment of inertia...did you post a video that explains this? Also, what would be benefit of this? Thanks.
Generally speaking, SM will increase with AMoI. I believe the desire is to gradually add material so that it will change the stress flow pattern. Adding material at the neutral axis allows for limited stress concentrations and then tapering it to the edge has minimal effect on the existing structure.
Thank you for the response.
is there a set distance that the gusset needs to travel along the horizontal bar to be sufficient enough for support? say on a 20ft long carport roof?
The general idea is to have gradual transitions. The angle of 22.5° works well in most cases. I will usually start the gusset at the neutral axis and then taper the leg at 22.5° until I get past the edge of the horizontal tube.
I know this is an older video but I am hoping it is still monitored and you can help me out here. I have went down the bit hole of planetary gears and have watched several different videos and I am confused by what I think is conflicting information (more likely me just misunderstanding) From online the gear ratio from sun to stator/carrier GR = 1 + (number of ring teeth/number of sun teeth). I believe the gear ratio also = driver speed / driven speed. In the case of a locked ring gear, and using the teeth number from your examples, the gear ratio, GR, for from sun to stator would be = 1+ (100/20) = 6. If it is also true the GR = driver speed / driven speed, then the stator rotational speed would then be = driver speed / 6, or 16.667%. In your example, you arrive at the fact that the stator is rotating at 40% of the sun, which is different. Can you possibly clear this up for me? Like I said, I figure I can chalk this up to my misunderstanding but I like answers haha
Nate, thanks for the inquiry. The number of teeth will indicate the ratio because they are all tied together. Check out this article mentoredengineer.com/calculate-planetary-gear-ratios/ and others on mentoredengineer.com for more information on this subject
I thought he hit the tree
What is the calculation or formula used for % of decision column?
You get to choose how important each contribution is to the outcome. All the contributions need to add to 100%
Bros gonna mess his back up that turn is ROUGH
What happened to you buddy!
I appreciate the concern. I've been super busy with client work but hope to get back on the Tilley's Terror in the next 3-4 months. Next step is to make a model of the launch and get the PLC to control it.
Tip: to prevent those moments where the passengers head goes off the seat, make the track turn at most 40° into the pivot point! The g forces would be curved so if the track is facing that curve more that it is in this video, it wouldn’t push the passenger like that.
Yes, but boring
Thanks
Welcome
why doesn't it turn inro the corner rather than turning out during the corner
It's more fun this way!
Solid advice 💯
The input is carrier and output is ring right?
The input in both stages is the sun. Stage 1 is the motor shaft. The stage 2 sun is connected to the stage 1 carrier. THe ring is held steady, but if the torque is to much, it will rotate.
We'd love to make all gussets perfect, but there are other design constraints like using tabs & slots for alignment and easier manufacturability! Can't really use those with a side gusset. Any tips on a least bad gusset design when you want to use tabs and slots with the gusset?
I do have this guide on tab and slots. mentoredengineer.com/warning-on-self-fixturing-parts/ I don't know your application so I can't help too much.
@MentoredEngineer cool I'll check that out thanks!
Bike cogs are easier to service and fix
I learned about reluctance motors a few months ago… has anybody tried to make a linear reluctance motor? Zero expensive magnets :)
Yes, you are referring to LIM motors and they are the first generation of linear motors. There are many roller coasters that use them like Possessed at Dorney Park and Flight of Fear at Kinds Dominion. They are very innefficient and not at all precise as they allow slippage. (LSMs do not) BTW -I believe you mean inductance and not reluctance
@@MentoredEngineerthank you for answering :) I know that the 2 existing linear motors are permanent magnet and induction. I was asking whether you ever saw a reluctance linear motor.
While the second half of the video has some very relevant suggestions, I do feel that it is not necessarily adding credibility when you state outright that you prefer hand calculations in a video about doing less FEA and more hand calculations (conflict of interest, no?). An FE specialist is unlikely to suggest that hand calculations are a waste of time, on the other hand. I would imagine that what you pointed out for the hand calculations (i.e. that they take a lot of time in the beginning but become quicker over time and experience) apply equally to finite elements calculations, no? Especially since a finite element model can provide significantly more information relative to the time spent.
How would you do this without a lap weld. Sanitary design?
Thank you so much
You're most welcome
Excellent Corey, Excellent !!! Thank you very much for your advice and competence !!!
My pleasure!
Perfect 🎉
Good job 🎉
amazing!!
Thanks!!
Hey Corey. You said TT would only have three inversions... so clearly you are being careful not to overshadow ArieForce One !
Well, AF1 is slightly taller and doesn't have a launch...
Mentored engineer, could you do a video covering hydraulic theory behind sizing a pilot to open check valve on a log splitter? Specifically selecting valve cracking pressure and pilot ratio? As well as hose sizing for a 22gpm pump?
Generally a 10:1 would work. Where would you put the check valve?
Great video!! I was thinking it was a counterweight used to help tension the chain. Thanks for the explanation!
Glad it helped!
Same pumps are on these chinese excavators i wonder how hard it would be to change from a singke stage to a dual pump?
Thanks for posting this! I was about to do this on a tractor loader to allow the use of the original remote valves. Saved me from trouble!
Glad I could help
I really liked this analogy, thank you for sharing
You are so welcome
I don´t know where to start reviwing my hand calculation but is a must, I have to study all the procedure again, it's been a long time since I did this type of structural calculation
Isaac, the link below is a refresher course that I have if you sign up for at the engineering level of my membership. Just click "Join" below the video. czcams.com/play/PLTWLKyk8roHzQ-wjKJBY2nk-wZaO4PSAs.html
Great advice
I have 1s=10 3p=20 1r=50. When i did the equation r-s/p (p=3) i get a decimal. What am i doing wrong here what did i miss?
(50-10)/20=2, no decimal here
In the 1860s the limitations of cast iron were known yet Bouch to save money still used it in tension on all vital pier couplings and combined with appalling manufacturing was criminaly negligent
Much explaining with words but less animation. 😢
Cool. Most people like the animations, but they take a lot of time to develop. I'll do less in the future.
How did you do the launch? I have a backyard coaster I build in the Raleigh NC area with my girlfriends brother, and we want to add a launch instead of its lift hill
czcams.com/video/QHWr5k2oL-w/video.htmlfeature=shared czcams.com/video/dTKt3HJ4RlU/video.htmlfeature=shared
It should never have gotten this far and the fact that it did speaks extremely poorly of the safety of the entire park
Those airtime moments are super awesome
Glad you like them! They make the ride
bro please get rid of that tree
That outerbank by the tree 💀
Hi Sir, Can i get 3 cylinders sycronizing
3 cylinders can be difficult. If you can't mechanically tie them together, I would try to meter the flow out of each cylinder with a flow control valve. After that, you will need to add some sort of electronic control system that measure the stroke and then changes the flow of oil as needed. I'm facing the same challenge right now, but with 10 cylinders all having varying loads.
RMC elements on a backyard coaster 😭
Oh yeah!
On bro shi if a person tall enough they gonna hit that tree for sure
But they're not going to.
mine is calculated to zero.why?
You man’s the comment section neck hurt
Anyone else neck hurt