Will any of these fit as a dig servo?

[Blaze0303]

Trying to figure out if any of these will work as a dig servo for my Capra Kit, I'm eventually going to go with a Reefs 99 but until those are in stock these are what I can find locally.

Edit: Buying the stock servo and waiting is an option.

TIA

EcoPower 640T

https://www.gravesrc.com/spektrum-a4030-micro-hv-digital-hi-torque-mg-aircraft-servo.html

Savox 0250

https://www.hobbytown.com/savox-sw0...traxxas-1-16-sav-sw-0250mg/p-xtywsdjq3eqbg4yz

Hitec HS-82MG

https://www.michaelsrchobbies.com/hitec-hs-82mg-standard-metal-gear-micro-servo.html

 

[King Dork]

What voltage are you going to run to the servo? I have a Reef’s 99 in my Capra and it’s great, however, if the 99 wasn’t available I’d have gotten this one instead:
https://www.amazon.com/AGFrc-Digita...o+servo&qid=1623344326&sprefix=reef+99&sr=8-3
No need to upgrade this one. I have a few AGF full size servos and they’re top shelf.

 

[King Dork]

Endpoints are key regardless to what servo you choose. Make sure to zero out the servo EPAs and adjust slowly until the dig and 4wd completely engage.

 

[Blaze0303]

That looks like it would be a perfect servo, but I would prefer running at 7.4v, right now I think I may just buy a piece of crap SX107 until I can get a reefs. I don't really see other micro servos that can run at 7.4.

Thank you!

 

[King Dork]

I hear ya. I totally forgot about this one so here’s a link to it just for sharts and giggles:
https://www.amazon.com/TORQ-Applica...q+cl0508+micro+hv+servo&qid=1623366541&sr=8-3

 

[Panther6834]

The EcoPower 640T fits perfectly, as does the Reef's 99, and a new micro servo - PowerHobby 59MG - that just recently became available. The "down" side to the Reef's 99, PH59MG, and other micro servos having a micro 25T spline, is that it becomes impossible to use the servo saver. However, work the EP 640T, if uses a 'standard' 25T spline, so you can use the lower servo saver piece from the AXI31009 kit.


~ More peace, love, and kindness would make the world a much better place

 

[Blaze0303]

Thanks a lot for the replies, I don't think I'm going to use the servo saver anyway!

 

[Panther6834]

Thanks a lot for the replies, I don't think I'm going to use the servo saver anyway!

I'll be honest...because of how the shifting mechanism is designed, unless you know how to PERFECTLY set the endpoints (and, admittedly, a lot of people do), it would be highly advisable to use a servo saver. For those who tried avoiding using a servo saver, and didn't sweet their endpoints 100% perfect, they 'killed' a lot of servos. Using the (very crappy) SX107, even though I know exactly how to set the endpoints, and even though I did initially use the servo saver (the very piece that came with the SX107), I still had 4 of those servos die on me (again, the SX107 is a BIG piece of garbage, albeit a very tiny BIG piece of garbage).


~ More peace, love, and kindness would make the world a much better place

 

[ScottyPotty]

What voltage are you going to run to the servo? I have a Reef’s 99 in my Capra and it’s great, however, if the 99 wasn’t available I’d have gotten this one instead:
https://www.amazon.com/AGFrc-Digita...o+servo&qid=1623344326&sprefix=reef+99&sr=8-3
No need to upgrade this one. I have a few AGF full size servos and they’re top shelf.

I got that AGF servo about a year ago, its been a solid servo. At that time I also ditched the servo saver and overall its been reliable and improvement over the stock servo. (which I also ran on 7.4v)

 

[HumboldtEF]

I'll be honest...because of how the shifting mechanism is designed, unless you know how to PERFECTLY set the endpoints (and, admittedly, a lot of people do), it would be highly advisable to use a servo saver.

~ More peace, love, and kindness would make the world a much better place

Yeah I'll 2nd this, the thing is dig doesn't always engage right away and you often need to give it some throttle/move a bit first before everything lines up and engages. In that time the servo is pushing beyond where it can physically push, this is where servos may die. No amount of fine tuning end points will eliminate this moment where it doesn't engage.

I forget who but someone makes an adapter that allows a full (1/10 scale) servo to fit, just another option to consider.

You can also lock out dig while you wait, they provide a spacer to install in the tranny and lock it out.

 

[Timmahh]

FYI, the Reefs 99 Micro has a 25t Micro Spline out put shaft. Hard to find horns to fit it. Be sure to order the Reefs 99 Micro horn for it if plastic wont work.

2nd FYI. There is not much room under the horn and above the servo top when the horn is installed.

The Axial and Traxxas Micro Servos have 25T output shafts, but they are standard size, not micro.

I used a 99 Micro in my Ryft for the 2 speed and it took a bit of work to get the horn setup to connect to the shifting mechanism.
Its not a straight fix. If Reefs would just use a Standard 25T output shaft, and added a few mm of room between the horns and cases, they'd be drop ins for the most part.

 

[Panther6834]

Yeah I'll 2nd this, the thing is dig doesn't always engage right away and you often need to give it some throttle/move a bit first before everything lines up and engages. In that time the servo is pushing beyond where it can physically push, this is where servos may die. No amount of fine tuning end points will eliminate this moment where it doesn't engage.

I forget who but someone makes an adapter that allows a full (1/10 scale) servo to fit, just another option to consider.

You can also lock out dig while you wait, they provide a spacer to install in the tranny and lock it out.

Exactly what I gave up on trying to set it as a 3-position. Of course, at this point, it no longer matters...I removed the electronics, which will be going into a custom rig based on the Krazed Build Alcista chassis, and I sold the front & rear axles. All that remains is the cage, skid, and my custom Stormtrooper interior...which I will be putting on 'display', along with the Black Panther cage/interior I used for my first C3 comp Capra 4WS rig (the rest of which...electronics & axles...have made their way into my new C3 rig).


~ More peace, love, and kindness would make the world a much better place