e's ExMT

[Abavuso]

I need electronics help here. Soon.

Could the transmitter circuit of a twin stick Tx be replaced with servo tester boards, to create a wired remote for power feeding my mill? I need to be able to lock out individual axis/directions in all possible patterns.

TIA, guys.

That would be a good question for LOSIKID, you can find him in the vendor section, he guts and hacks radios all the tiem. As for me, I woudn't have any clue.

 

[ekd]

That would be a good question for LOSIKID, you can find him in the vendor section, he guts and hacks radios all the tiem. As for me, I woudn't have any clue.

I'll post if no one here chimes in.

M's kit is ready to ship, so... Time for T's. And weird stuff.

This cluster of MT gears will run from 133:1 with a 12t pinion, to a 79.2:1 with a 20t. It folds up nicely into a tight bundle.

I realized that a good source of planetary trans, with a more appropriate ratio, weight, and size can be found in cordless screwdrivers. An added bonus: most have lockers (some automatic) that would make for very solid dig/hold. Worth considering.

 

[ekd]

I've been looking forward to opening the bag on this. Adam will be sending a new style Hawk kit with topper when they come in stock, but was kind enough to send this for me to get my sweetie's rig moving along. Thanks, A. :mrgreen:

I like what I see here. I could not be happier with the quality, and the look.

I'll be frank. My very first experience with someone here was begun based on what I had gleaned reading a bunch here. It went... not well. Punk never returned any messages, even when Paypal notified him that I wanted a refund. I waited 1 week then filed a claim. Without (ever) a response from Punk.... I had my money back... in 70 minutes. Tells me a lot about that guy.

Dealing with AB Designs has been the polar opposite of that, and has been precisely the kind of experience I had hoped to have in this place.

'Nuff said.

 

[DSC]

Looks good. AND it's good to know theres good people out there. Theres so many people out there that are quick to steal your money and not think twice about it. I'm going threw that right now.

 

[ekd]

Looks good. AND it's good to know theres good people out there. Theres so many people out there that are quick to steal your money and not think twice about it. I'm going threw that right now.

Here's one close to home: http://www.rccrawler.com/forum/scale-accessories/322716-my-take-scale-drivetrain-pic-heavy.html

Guy pissed away enormous potential, and a pretty affluent customer base... for $7000 or so. Pennies.

I believe in credit where credit is due, and after decades of dealing directly with folks, I don't even care if I dislike everything about someone... if they do good business, I'm gonna tell everyone.

 

[ekd]

NRCX has the long max tubes back in stock. The long tubes, cut to the first mount, are identical to the short ones. The only variance is ID... the short are a few thou smaller.

I ordered enough parts to make 2 more M/M crawlers, I'm becoming rather fond of them.

 

[DSC]

Yeah, I read threw that. Hopefully he'll make everything good in a timely manner.

When you order from Nitro RC, do they send an email of shipping? I ordered a few days ago and haven't gotten anything about shipping or order confirmation

I'll be ordering some of those tubes and everything to go long with them and motors as well. These stock motors suck.

 

[ekd]

If you check the box during checkout, they typically send a confirmation within mins. If you don't get a shipping confirmation by tues, I'd check up on it.

The conversion is easy, I don't think you'll have probs.

 

[ekd]

I think I found the best way to accurately measure the output torque of my various power plants, and force/yield test shafts.

I was about to try a fixture for aligning and twisting axles to yield, using a tiny click inch/lbs wrench (not yet purchased). It was fun tweeking the test piece, but this potential setup will give hard #s.

Edit: Bought one of these. It's going to teach me a lot.

http://www.ebay.com/itm/Alltrade-94...965?pt=LH_DefaultDomain_0&hash=item3f0e3c71cd

 

[ekd]

To get useful numbers from this as a dyno, I believe I have to be able to apply the load (gradually, to stall) to a turning shaft. I'm thinking that testing with a solid connection will give varied results, depending on where the armature is, in reference to the magnets.

I'm currently considering a simple lever actuated clutch using a T-Maxx disc brake as the friction disc. Is there a better way?

I'd appreciate any input here.

 

[ekd]

T's Hawk

This is for T's 2.2 M/M. Length is 225mm.

It will need knuckles as deep as these, but not as tall. Uses the regular M/M long tube and axle.

 

[ekd]

1 down.

 

[ekd]

Twins.

 

[BentMetaL]

Looks good! How are you planning to mount the servos?

 

[ekd]

Looks good! How are you planning to mount the servos?

Thanks!

That's what I'm pondering right now. There isn't a lot of room to play with, but the tubes are really stout... so, it will not be fancy, but will be strong without adding a lot of weight.

M suggested I go with a high F steering setup, and frankly, anything else seems like complexity for it's own sake. I measured out all the options... and K.I.S.S. seems like the smart rule for this rig.

This will be an exercise in clean and simple, and aside from the odd axles, there won't be any new ground broken.

T is loving the conspiracy. Got some good stuff coming from some good guys, and I'm having fun doing the easy parts. :mrgreen:

 

[ekd]

Can someone tell me the pivot to pivot length of super Bully and Berg axles?

 

[ekd]

As low as it gets.

 

[Abavuso]

is that going to leave enought room for the motor to mount behind it? That's prety cool Idea. My only other question would be, how do you plan on mounting the links and shocks?

 

[ekd]

I set it up to be as close as possible to the motor. I am going to change this slightly so I can use the stock mounting brackets. They weigh nothing.

I'll either be making link/shock mounts that mount to the back of the C mounts, or something that screws to the tubes. Even cut away, the tubes are still strong... and still heavy.

How far from the axle's center line are the XR10 link's mounting points?

 

[ekd]

Turns out, if you make the same 7mm cut to the back side of the tube, the servo will fit between it and the motor.

And, using 2 long tubes will get you within a few mm of the Super Bully's length.

These are turning out to be pretty versatile.