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Atom 7HV › 7HV set up on 16S
01-26-2017 04:29 AM  5 months agoPost 1
Band1086

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Kennewick, Wa. USA

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Anyone know if the 7HV main gear will hold up with an 11T pinion or if the motor mount will adjust that far?

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01-27-2017 03:42 PM  5 months agoPost 2
Band1086

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Kennewick, Wa. USA

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Can someone tell me the thickness of the main gear? Is it 11mm like the Trex?

Thanks

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01-27-2017 04:03 PM  5 months agoPost 3
DemetriusUSN

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Virginia Beach, Va USA

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When I get home I will, I'm off work at 230pm.

Minicopter Diabolo 700, TDR Rigid, Goblin Speed 700, Compass 6hvu, Logo 600se V2, Devil 380

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01-28-2017 08:52 PM  5 months agoPost 4
DemetriusUSN

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Virginia Beach, Va USA

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The 7hv spiral main gear read 11.56mm thick or 1/2 an inch and the tree mod 1.0 matches perfect to the gear.

Minicopter Diabolo 700, TDR Rigid, Goblin Speed 700, Compass 6hvu, Logo 600se V2, Devil 380

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01-29-2017 12:50 AM  5 months agoPost 5
Band1086

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Kennewick, Wa. USA

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Thank you! Very good info.

Thanks again.

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01-29-2017 01:16 AM  5 months agoPost 6
DemetriusUSN

Veteran

Virginia Beach, Va USA

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You're welcome, my caliper is from Harbour freight so it's not the greatest but it does the job.

Minicopter Diabolo 700, TDR Rigid, Goblin Speed 700, Compass 6hvu, Logo 600se V2, Devil 380

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02-08-2017 11:48 PM  4 months agoPost 7
Band1086

Elite Veteran

Kennewick, Wa. USA

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Pinion

Well, the Trex pinion doesn't work. It does mesh, but when it meshes, it does not ride perpendicular to the main gear. The helical cut main gear on the 7HV has a shallower cross cut than the Trex...

So, I need an 11T pinion to fit the 7HV main gear. Does anyone have one they'd sell or know where I can get one?

Thanks

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02-09-2017 12:21 AM  4 months agoPost 8
DemetriusUSN

Veteran

Virginia Beach, Va USA

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The helical main gear I had fit, I'm sure it was Trex. If I'm mistaken, my fault.

Minicopter Diabolo 700, TDR Rigid, Goblin Speed 700, Compass 6hvu, Logo 600se V2, Devil 380

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02-09-2017 01:49 AM  4 months agoPost 9
Band1086

Elite Veteran

Kennewick, Wa. USA

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Mine fit too but not straight up and down on the main gear...

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02-17-2017 04:08 AM  4 months agoPost 10
Band1086

Elite Veteran

Kennewick, Wa. USA

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I found a compass 7HV 11T pinion at experience RC. With this the 7HV has 4 different gear ratios available: 14T-9.07 13T-9.77 12T-10.58 11T-11.545
Excellent amount of gearing options for a single stage setup! Can't wait to fly it. It will be on 16S with a 450KV NEU 1915 1.5Y. The motor will run at approx. 25,000 RPM @ 2150 HS. And since torque X RPM = power, I'm anxious to see what it can do with a smaller motor on 16S with absolute minimum head room!

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02-17-2017 09:56 AM  4 months agoPost 11
DemetriusUSN

Veteran

Virginia Beach, Va USA

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That's great..... I can't wait to see a video of this monster in the air.

Minicopter Diabolo 700, TDR Rigid, Goblin Speed 700, Compass 6hvu, Logo 600se V2, Devil 380

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Atom 7HV › 7HV set up on 16S
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