Giant Half-Scale Build

[Z.hb71]

Got a little action going on with the front end;

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Wow she's a work of art! Great work! What motor are u going to use?

 

[KustomKB]

Thanks Z!

I've got a 70cc china, might put a 90cc head on it.

 

[Z.hb71]

Thanks Z!

I've got a 70cc china, might put a 90cc head on it.

Is it a 4 stroke or a 2 stroke? Someday u should do a high rpm and high power build on that motor ?

 

[KustomKB]

4 stroke. Got to get her going first. If everything holds up then some engine swap/mods for sure.

 

[Z.hb71]

4 stroke. Got to get her going first. If everything holds up then some engine swap/mods for sure.

Sounds good ??

 

[voo2doo]

That looks like a moped engine?
J

 

[KustomKB]

That looks like a moped engine?
J

From a chinese quad. buit in CVT. They copied Honda's design at some point. The most mass produced engine ever.
Got any ideas on my glitchy servo video?

 

[voo2doo]

I have put it down to the radio gear in the past AM/FM gave me glitches. Also weather you use Nic batts or LiPos. You could try a Power capacitor. It looks like its trying to find its centre. With the set up you are using I couldn't put a finger on it I'm afraid.
J

 

[KustomKB]

Thanks J, I tried this radio too, which I got a while ago, so I could set the endpoints, no change.

 

[Z.hb71]

Thanks J, I tried this radio too, which I got a while ago, so I could set the endpoints, no change.

What is that? Never seen 1 B4

 

[KustomKB]

It's called Radiopost. I bought it from a brick and mortar for a hundred bucks.
Not too long ago, a radio like this would have been a thousand.

 

[voo2doo]

Have you tried a ferrite ring wrapped around the servo lead? Might stop the interference. Is there any reason why you didn't go for the conventional twin jumbo servo set up
J

 

[Seandonato73]

Just seen this thread and read the whole thing. Awsome job man it's really coming along ????

 

[KustomKB]

Thanks Sean!

VD, I'll try the ferrite core, good idea, I didn't go for the jumbo servo set up because of the cost.
I bet that has changed a lot since I started this adventure!

 

[KustomKB]

Hey voo2doo, a servo like this says it is 62kg, does that mean if you had a horn, 10cm long it would push with a force of 6.2kg?
Seems high for a plastic horn... Thanks.

https://hobbyking.com/en_us/jx-pdi-...ge-digital-power-servo-62kg-0-13sec-200g.html

 

[voo2doo]

The way I learnt about servo's and their torque capabilities were that if a servo is 100kg's at the core then the first hole in the servo arm would half that of the initial 100kg's , so would be 50KG's and every hole after that would half the previous torque before that. 2nd hole would be 25kg and so on.So the closer to the core would be the best torque.
A big no no on the plastic arms, you'll strip the arm at the spline for certain.
Here is a cheapy but good servo. Run a double set-up and they should good to go.
https://www.ebay.co.uk/itm/ALTURN-Q...h=item2a7053affd:g:zUwAAOSwcT5burfP:rk:7:pf:0

J

 

[KustomKB]

Swapped motors, still not sure what happened....

 

[LibertyMKiii]

Wow! This build is impressive.
Subscribed to see how it turns out.

 

[Seandonato73]

Looks like your steering will work nicely ?

 

[KustomKB]

Finger crushing torque!