Damn that airtime moment IS severe! Great showing with the log. And I presume the restrains were airtime friendly so this thing would have been so much fun.
Just wanted to let you know - I've always been a fan of your coaster, and other backyard coasters such as Blue Flash, all of Will Pemble's coaster, and the new guys at Magictecture, and I'm building a roller coaster tycoon park that'll be entered into a contest to honor them. Sadly the game does not allow for something that looks sufficiently home made, but I'm liking how it looks so far. :) Thank you for putting out this video, it gives me a lot of inspiration.
HI Jeremy. I'm interested in the main wheel running surface. It looks like a lot of it was bare wood? Then you added HDPE in some places? Then steel? What type of wood? How did the different surfaces hold up? I wonder how the new PVC house trim materials would do. PVC is much stiffer than HDPE, I think, but has lower fracture toughness.
Great questions. Yes, I experimented with various materials. The main considerations were cost and ease of fabrication (cutting/drilling). Tried UHMWPE, but it had 2 problems: became brittle over time and thermal expansion was significant (they would buckle upwardly in the center). Eventually went with scrap steel strips. Took forever to cut, drill, but was WAY better overall.
Is there a minimum weight for the ride? Or does the train make it over the hill empty? Did you use physics and math for any of this or did you do it all solely by trial and error? How did you know the train would make it over that airtime hill? Did you have to get any special permit to build this? Edit after watching the video.. is that a chain tensioner?? You thought of everything! This is so cool
I didn't want to bother with it getting stuck every time it was empty, so I made sure it would make it around not only empty, but also with a certain amount of wind. I used basic physics including friction and air resistance considerations, but there was plenty of trial and error as well. I made an excel program that helped me with the airtime hill profile. It was in rural oklahoma - no permits required for building as it was not a structure for occupying people. Yes on the chain tensioner and I have much more to explain on that. I am planning to share most of these with some videos eventually. Currently working on a video showing how I did the track. Please check back occasionally and thanks for the comments!
@@RollerCoasterEngineer this is really cool! I'm looking forward to how you built this. It's cool that you have anti rollback as well. Definitely subscribing! The supports look just like a real rollercoaster too.
This is my favorite backyard coaster., and I'm sure that bunny hill is a dandy on airtime.
Damn that airtime moment IS severe! Great showing with the log. And I presume the restrains were airtime friendly so this thing would have been so much fun.
This is incredible! What a project!
Thanks!
That is a fab backyard rollercoaster, awesome drops would love to go on that myself, well done
Just wanted to let you know - I've always been a fan of your coaster, and other backyard coasters such as Blue Flash, all of Will Pemble's coaster, and the new guys at Magictecture, and I'm building a roller coaster tycoon park that'll be entered into a contest to honor them. Sadly the game does not allow for something that looks sufficiently home made, but I'm liking how it looks so far. :)
Thank you for putting out this video, it gives me a lot of inspiration.
Thank you for being a fan! I really appreciate the comment. Good luck on the RCT contest!
It looks like you had steel wheels? Were they flat or a little convex shaped?
Good question. They are crowned.
I love these videos. When you get a chance, I’m curious about your rolling stock: Very professional!
Ok, one of these days!
HI Jeremy. I'm interested in the main wheel running surface. It looks like a lot of it was bare wood? Then you added HDPE in some places? Then steel? What type of wood? How did the different surfaces hold up? I wonder how the new PVC house trim materials would do. PVC is much stiffer than HDPE, I think, but has lower fracture toughness.
Great questions. Yes, I experimented with various materials. The main considerations were cost and ease of fabrication (cutting/drilling). Tried UHMWPE, but it had 2 problems: became brittle over time and thermal expansion was significant (they would buckle upwardly in the center). Eventually went with scrap steel strips. Took forever to cut, drill, but was WAY better overall.
PVC might work as it holds up well outside. May come down to thickness and thermal expansion.
@@RollerCoasterEngineer if you paint it to protect from UV, it lasts longer.
That airtime hill looks wild I can only imagine what it feels like
It was like a slingshot!
Man you’re living the dream, that’s so awesome, what a great project!
Do you think you’ll be making another one?
I hope to someday, but no immediate plans.
That's the coolest backyard roller coaster i have seen yet. I want one. How much did it cost too build a coaster this size roughly?? Just wondering...
I think it was around $10k
@@RollerCoasterEngineer i want one!!!!!
Is there a minimum weight for the ride? Or does the train make it over the hill empty? Did you use physics and math for any of this or did you do it all solely by trial and error? How did you know the train would make it over that airtime hill? Did you have to get any special permit to build this?
Edit after watching the video.. is that a chain tensioner?? You thought of everything! This is so cool
I didn't want to bother with it getting stuck every time it was empty, so I made sure it would make it around not only empty, but also with a certain amount of wind. I used basic physics including friction and air resistance considerations, but there was plenty of trial and error as well. I made an excel program that helped me with the airtime hill profile. It was in rural oklahoma - no permits required for building as it was not a structure for occupying people. Yes on the chain tensioner and I have much more to explain on that. I am planning to share most of these with some videos eventually. Currently working on a video showing how I did the track. Please check back occasionally and thanks for the comments!
@@RollerCoasterEngineer this is really cool! I'm looking forward to how you built this. It's cool that you have anti rollback as well. Definitely subscribing! The supports look just like a real rollercoaster too.
Thank you for this video how did you bend the wood to curve like that?
Hi, I am working on a video to explain it, can you please check back in a while?
Is this thing defunct or still standing?
I had to take it down a while back.
@@RollerCoasterEngineer RIP. Looked awesome though!
How old were you when you made your first roller coaster?
I think I was 20 years old.
Ok when can I ride it!
Thanks for watching my coaster!
How about you make a do not stand up sign?
Now that’s a great idea!
You should post it on tiktok aswell i bet a lot of people would love to see this historic hem
Thanks for the suggestion - maybe I will do that.
You should build a station!
That would have been cool.
Do you plan to add a pneumatic braking system ??
That's an idea!
You should get RMC to redo it
Great idea!
@@RollerCoasterEngineer Ik
Wow this is awesome please make another one and take us along with the journey! (Subscribe button)
That's a good idea. Maybe someday! Thanks for the comments!
You should make a tutorial on how to make one, id love to build my own lol
I am starting to gather some info, just need to put it together and turn it into some videos.