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HomeScaleAircraftScale HeliScale Helicopter Main Discussion Docs  Vario AH-1S to AH-1Z
01-07-2015 02:23 AM  3 years agoPost 61
Mojave

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Palos Verdes, Ca. USA

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Well, the clutch conversion of my vario electric mechs for the Cobra is complete. I used the vario motor mount that's called out for these mechs, scavenged the 22 tooth clutch, 40 tooth gear and spacer bushing from a Benzin and used a 146XL belt. The belt fit perfectly and left a ton of room for adjustment. I machined the clutch adapter, but Joe at East Coast Scale has these in stock, they're for the benzin electric clutch conversion. With this set up I retained the stock benzin gear ratio and used a Xera 300kv motor. My motor had a 25x25mm hole pattern, so I added this pattern to the stock motor mount. I also machined spacers for my motor to keep the clutch inline with the driven gear(I didn't want to shorten the motor shaft). Some motors may or may not need spacers. Here are a few pics.
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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01-07-2015 03:08 AM  3 years agoPost 62
Rckfish

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Little Rock,AR

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Nice work Barry

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01-08-2015 01:04 AM  3 years agoPost 63
Mojave

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Palos Verdes, Ca. USA

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Thanks bud Let me know if you decide to go clutched on your cobra, I'm happy to help you mod parts to get it done.
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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04-25-2015 04:14 PM  3 years agoPost 64
garyl

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taxachussetts

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Been making parts in solidworks, here is how they came out.

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04-25-2015 06:18 PM  3 years agoPost 65
gonzalom

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Northern California

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The clutch mechanics of my setup with the slow start is one of the best parts of scale startup!

Gonzalo

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01-31-2016 06:25 PM  34 months agoPost 66
garyl

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Been a while since I posted anything on this project, I was flying it all last year half finished and did not do anything to it.

Here is the full scale exhaust.

I drew up a dummy exhaust insert in solidworks.

Printed them out using my Makergear M2 which does an awesome job, no post finishing required with that printer.

Sprayed them with some flat black paint and they fit like they were made for it.

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01-31-2016 08:30 PM  34 months agoPost 67
BostonCopter

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Boylston,MA. USA.

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Perfect.

If you can't be that good, then be good at it !

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01-31-2016 08:33 PM  34 months agoPost 68
Mojave

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Palos Verdes, Ca. USA

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Cool parts and a very nice fit! Your printer has good resolution...
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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02-01-2016 05:29 PM  33 months agoPost 69
garyl

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Thanks, That printer combined with the Simplify3d slicer makes it easy. Those parts were printed at 200 microns, the printer can go down to 50 microns easily but the big parts would take days to complete.

I am in the process of designing and printing the cockpit for this helicopter.

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02-02-2016 02:32 AM  33 months agoPost 70
Mojave

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Palos Verdes, Ca. USA

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If this new cobra turns out anything like your fire watch cobra, it's a sure winner! You have no idea how badly I want that fire cobra...
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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02-03-2016 01:09 AM  33 months agoPost 71
garyl

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This is what I have designed so far. The floor is made up of small sections that fit on the print bed.

The material I am using is PLA and super glue works good with it.

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02-04-2016 10:50 PM  33 months agoPost 72
garyl

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I cut out the fiberglass window sections from the canopy area, I will use these to make the window vacuum forming molds.

I then set them in a bed of setting type joint compound which sets hard like ceramic material, just add water. This stuff is available at Lowes or home depot in the drywall department.

After they cure I sand them to shape and what you are left with is a very hard window mold that can take the high temperatures of vacuum forming.

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02-05-2016 12:45 PM  33 months agoPost 73
Heli143

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Phenix City, Alabama

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this is really cool stuff!!

Roy Mayoral

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02-14-2016 10:07 PM  33 months agoPost 74
garyl

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I had some time today to start vacuum forming the canopy windows. I made a 12" x 12" vacuum forming box a few years back when I made the firewatch cobra windows http://www.scalerchelis.com/phpBB2/...+cobra&start=75

I used blue tape to close off all the holes surrounding the outside of the plug, I then put two layers of metal screen material to hold the plug up off the surface. I found this to be the best method for vacuum forming so you don't get webbing at the edges anywhere.

I use this little shop vac for the vacuum source.

Here is one of the finished windows.

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02-15-2016 01:40 AM  33 months agoPost 75
Mojave

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Palos Verdes, Ca. USA

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That is super cool and very helpful! Thanks for sharing this info.
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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04-16-2016 04:19 PM  31 months agoPost 76
garyl

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Sandy Jaffe stopped by this morning and dropped off this plaque by surprise.

He brought my old Firewatch cobra to weak signals this year and it won first place.

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05-30-2016 10:58 PM  30 months agoPost 77
garyl

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I finally had a chance to finish the window installation, I know it takes me forever to do anything .

I did some graphics painting as well. Callie graphics did the paint masks, her work is the best.

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02-13-2017 07:11 PM  21 months agoPost 78
garyl

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I been designing the cockpit and a 70mm rocket launcher on Solidworks.

I made it up in different parts to make it easier to paint.

I used 2mm hardware to mount the weapon station to the pylon and the rocket launcher to the weapons station.

I made all the parts with my Makergear M2 3D printer using PLA material.

The cockpit is still a work in progress.

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02-13-2017 09:29 PM  21 months agoPost 79
ssmith512

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Indianapolis, IN USA

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So cool. OK, now I want to build a Viper!!!

How do I get a hold of this Romano guy to discuss conversion parts?

Steve

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02-14-2017 02:04 AM  21 months agoPost 80
Mojave

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Palos Verdes, Ca. USA

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That looks great!!! How easy/hard is it to design in solidworks?
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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HomeScaleAircraftScale HeliScale Helicopter Main Discussion Docs  Vario AH-1S to AH-1Z
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