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Very Hot Topic (More than 25 Replies) Hiller X-2-235 (Read 3787 times)
Ray_K
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Re: Hiller X-2-235
Reply #16 - Jul 24th, 2018 at 7:05pm
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7-24-2018

Ok Paul you got it, late fall I should have everything ready and I will send you the gearing and plans and stuff. I will get your mailing info when I am ready to send.
Smiley

Cheers, Ray K.
  
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shipwreck
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Re: Hiller X-2-235
Reply #15 - Jul 24th, 2018 at 5:47pm
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I am up for it Ray,
Can do this as a winter project.
Thanks
Paul
  
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Ray_K
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Re: Hiller X-2-235
Reply #14 - Jul 24th, 2018 at 3:38pm
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7-24-2019

Hi Paul,

I would send you the gears needed for this as well as plans and pattern sheets, just want to see if it will be easy for someone besides me to build.

Cheers, Ray K.
  
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shipwreck
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Re: Hiller X-2-235
Reply #13 - Jul 24th, 2018 at 2:51pm
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Ray I would give it a go. Have to get the stuff to make the gears and info from you. May take me a bit to build but would be a fun project to do. My hand is doing better but still alot of trouble doing the finish work at this time. Thanks Ray.
Paul
  
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Ray_K
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Re: Hiller X-2-235
Reply #12 - Jul 23rd, 2018 at 5:19pm
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7-23-2018

Hi Paul,

This one is pretty simple, as you see by the drawing I was going for keel and former construction, but I decided to redo this drawing and make it side frames and sub former construction, less balsa used, lighter construction, I will have the new sheet # 1 drawing done by tomorrow, this would be a good helicopter model to start with, mechanics are pretty simple and the co-axial gear box is not hard to build.

If you would like to try one, I will be looking for someone to try and build this as a test once I have all the drawings done.

Cheers, Ray K.
  
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shipwreck
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Re: Hiller X-2-235
Reply #11 - Jul 23rd, 2018 at 4:35pm
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Looks profsional Ray  Smiley
Like to try my hand at building one. What would you recommend for a first time buyer?
Thanks
Paul
  
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Ray_K
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Re: Hiller X-2-235
Reply #10 - Jul 23rd, 2018 at 3:55pm
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7-23-2018

Here is sheet # 1 of plans completed, working on sheet # 2.

Cheers, Ray K.
  

( 163 KB | 7 Downloads )
Hiller_x_plans_.jpg
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Ray_K
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Re: Hiller X-2-235
Reply #9 - Jul 20th, 2018 at 6:01pm
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7-20-2018

Hi Paul,

I hunt around until I find a plastic gear that I think is close to what I need then I just machine these gears into what I want, I make the gears thinner, lighter by adding lighting holes, change the bore size, ect, once I get the gears to where I want them then I make a master silicone mold of the modified gears and now I can cast as many as I want.

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shipwreck
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Re: Hiller X-2-235
Reply #8 - Jul 20th, 2018 at 5:36pm
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Hi Ray,
When you make the plugs for the  gear molds, do you use metal ones or do youcarve the gears out. I always wanted to do this just have not had time to research it. Thanks for sharing skill and knowledge.
Paul

  
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Ray_K
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Re: Hiller X-2-235
Reply #7 - Jul 20th, 2018 at 5:10pm
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7-20-2018

You and me both brother, the process of making gears is really not that hard, most important thing is getting the silicone mold right, you have to work it to get all the air bubbles out and get the silicone in all the nooks and crannys before it starts to set up, air bubbles ruin molds, casting them are easy, you just have to be fast on the pouring after mixing the stuff I use sets up in 3 minutes so time is critical.

Cheers, Ray K.
  
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Sky9pilot
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Re: Hiller X-2-235
Reply #6 - Jul 20th, 2018 at 4:17pm
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Ray,
You're ability to make those gears is fantastic!  I'm jealous of that skill!  I look forward to seeing this new power train at work!
Tom
  

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Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Ray_K
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Re: Hiller X-2-235
Reply #5 - Jul 20th, 2018 at 4:00pm
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7-20-2018

Ok, I made modifications to the gear set and made the silicone mold to cast the 4 to 1 gear set, this new gear set came out to 3 grams, looks like I have all the mechanical components ready, all I need to do is build the model to put this stuff into and see if it works.

Cheers, Ray K.
  

( 71 KB | 4 Downloads )
Silicone_mold.jpg
( 159 KB | 7 Downloads )
Casted_gears.jpg
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Ray_K
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Re: Hiller X-2-235
Reply #4 - Jul 17th, 2018 at 3:09pm
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7-17-2018

Thanks Guy's, sorry for the blurry pictures, yes Tom it is a quarter.

Cheers, Ray K.
  
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Sky9pilot
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Re: Hiller X-2-235
Reply #3 - Jul 17th, 2018 at 12:15pm
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Ray,
This is looking very good...I'm still contemplating how to make contra rotating setup for my Schneider Trophy plane with the gears you sent me. 

Is that a quarter in your pictures?
Tom
  

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Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Re: Hiller X-2-235
Reply #2 - Jul 17th, 2018 at 6:42am
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Good looking gear box. Look forward seeing the build of this.
Paul
  
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