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Cox Engine of The Month
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"ULTIMITE COX 010: it has a clutch, E starter, throttle, exhaust, aluminum tank, aluminum venturi, gearbox with forward and reverse, and now its on a custom drawn and printed stand"
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robot797's
"ULTIMITE COX 010: it has a clutch, E starter, throttle, exhaust, aluminum tank, aluminum venturi, gearbox with forward and reverse, and now its on a custom drawn and printed stand"
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3D printed R/C Pee Wee backplate
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3D printed R/C Pee Wee backplate
Jason_WI Fri Dec 25, 2020 1:21 am
Seems like there is a huge infatuation with R/C Pee Wee engines and the like lately.
Here's my attempt to create an R/C Pee Wee engine with a modified version of the 3D printed backplate. I stretched the body of the backplate by .25" to make room for a throttle body. It will use C clips to secure it in place and o-rings to seal and prevent leaks. It should be able to kill the engine when fully closed. I have parts on order from McMaster Carr and will print a few to try out. I need to order a support filament that can handle nylon and will use my dual extruder printer to print these. The throttle body gets pretty thin at the o-ring area. Hopefully the carbon fiber Zytel is strong enough for this. No guarantees. It might end up in moth balls like the 3D printed all bearing crankcase TD.....
Here's my attempt to create an R/C Pee Wee engine with a modified version of the 3D printed backplate. I stretched the body of the backplate by .25" to make room for a throttle body. It will use C clips to secure it in place and o-rings to seal and prevent leaks. It should be able to kill the engine when fully closed. I have parts on order from McMaster Carr and will print a few to try out. I need to order a support filament that can handle nylon and will use my dual extruder printer to print these. The throttle body gets pretty thin at the o-ring area. Hopefully the carbon fiber Zytel is strong enough for this. No guarantees. It might end up in moth balls like the 3D printed all bearing crankcase TD.....
Jason_WI- Top Poster
Posts : 3123
Join date : 2011-10-09
Age : 49
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Re: 3D printed R/C Pee Wee backplate
robot797 Fri Dec 25, 2020 6:58 am
if it is for a cox 049 i could try to print it on my sla printer
robot797- Platinum Member
- Posts : 765
Join date : 2013-07-28
Age : 33
Re: 3D printed R/C Pee Wee backplate
Cribbs74 Fri Dec 25, 2020 11:39 am
Too cool Jason! Should be pretty popular.
Cribbs74- Moderator
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Re: 3D printed R/C Pee Wee backplate
NEW222 Fri Dec 25, 2020 11:48 am
Looks amazing. The detail into the design is nothing short of amazing. Wish you luck on the printing and that it works out good for you.
NEW222- Top Poster
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Re: 3D printed R/C Pee Wee backplate
davidll1984 Sat Dec 26, 2020 4:56 pm
Jason y like the new desing it was Good To place bafle in befor the neadle valve just for informations the prototype tee dee wit bearing 3d print wy Not use the model for casting one made of aluminium wit sand mold ??? Y want To try To build one made of aluminium is it posible like the cox sing on parts u made very Good looking engine
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Join date : 2020-02-12
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Location : shawinigan
Re: 3D printed R/C Pee Wee backplate
sosam117 Sat Dec 26, 2020 5:54 pm
Jason is trying to do it better (mouse trap) than the guy in Japan that has a Pee Wee throttle.
sosam117- Diamond Member
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Location : Suburb of Chicago, Illinois
Re: 3D printed R/C Pee Wee backplate
Marleysky Sat Dec 26, 2020 11:05 pm
AHHHH! !
I look at those 3d CAD renderings of the Backplate and throttle barrel and get shivers up my spine thinking how long and difficult it would have been to produce those types of drawings back in High School Drafting #1 & #3 pencil on Velum paper, Hey Roddy, Can I borrow your French Curve? anybody got a protractor?
AAHHH ! again I'll need an eraser too.
I still get complemented on my hand writing when I take the time to print like was taught way back then.
I'm jealous of you guys who brought yourselves up into the 21st Century learning CAD and 3D Printing ! !
Hey Jason, If you go into production......I would order a couple just for fun! !
I look at those 3d CAD renderings of the Backplate and throttle barrel and get shivers up my spine thinking how long and difficult it would have been to produce those types of drawings back in High School Drafting #1 & #3 pencil on Velum paper, Hey Roddy, Can I borrow your French Curve? anybody got a protractor?
AAHHH ! again I'll need an eraser too.
I still get complemented on my hand writing when I take the time to print like was taught way back then.
I'm jealous of you guys who brought yourselves up into the 21st Century learning CAD and 3D Printing ! !
Hey Jason, If you go into production......I would order a couple just for fun! !
Marleysky- Top Poster
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Posts : 3618
Join date : 2014-09-28
Age : 71
Location : Grand Rapids, MI
Re: 3D printed R/C Pee Wee backplate
OhBee Mon Dec 28, 2020 1:12 am
How you supposed to mount the engine ? .... Big hole in firewall with no strength left?...or long spacers that will surely vibrate loose?
OhBee- Platinum Member
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Location : Minnesota
Re: 3D printed R/C Pee Wee backplate
Oldenginerod Mon Dec 28, 2020 4:19 am
OhBee wrote:How you supposed to mount the engine ? .... Big hole in firewall with no strength left?...or long spacers that will surely vibrate loose?
From what I can see, they should mount normally, just the same as any horseshoe backplate. It should just mount flush. Air can draw in around the needle valve and fuel line like any similar backplate.
Oldenginerod- Top Poster
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Re: 3D printed R/C Pee Wee backplate
robot797 Mon Dec 28, 2020 5:39 am
I think he means jasons versionOldenginerod wrote:OhBee wrote:How you supposed to mount the engine ? .... Big hole in firewall with no strength left?...or long spacers that will surely vibrate loose?
From what I can see, they should mount normally, just the same as any horseshoe backplate. It should just mount flush. Air can draw in around the needle valve and fuel line like any similar backplate.
robot797- Platinum Member
- Posts : 765
Join date : 2013-07-28
Age : 33
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