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Official AE RC18 Thread!

Old 04-16-2012, 08:27 AM
  #1891  
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Originally Posted by FunkELo
so, correct me if I'm wrong, just about any 2s lipo would be ok as long as it fits in the battery location? what about a 3s?
yep. the problem is there aren't a lot of batteries that fit.
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Old 04-17-2012, 03:58 PM
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Originally Posted by burnineyes
I have not used those servos, but I do know another good low-cost alternative to the Hitec. I have been running the Turnigy/TPro MG90S for several months in my RC18s with great success. It fits in the same dimesions as the Hitec but uses a more common 2.5mm thread rather than the funky 2.3mm thread. It has similar speed and torque numbers, all metal gears and it costs about $7.
Do you know if the HiTec servo saver works for the MG90S? I plan to buy the ASC21049 HiTec servo saver so that I can get it to fit.
http://www.teamassociated.com/parts/details/21049/
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Old 04-17-2012, 07:32 PM
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Yes, that part will work with the MG90S. You will just need the screw to attach the saver, I believe the one I use is 2.5x12mm.
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Old 04-18-2012, 12:48 AM
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Originally Posted by burnineyes
Yes, that part will work with the MG90S. You will just need the screw to attach the saver, I believe the one I use is 2.5x12mm.
So, I got the Hitec servo saver kit. The horn (or whatever the name of the part that installs on the servo threads) doesn't really fit. That is, the diameter seems to be the same but the number of knurls or ridges is different. I haven't seen any other alternatives to this, so I just force-fitted the horn onto the servo. It fits now
Got it all mounted. The servo wires are really long, so I zip-tied it to clean it up a bit. With more time, I'd probably just shorten the wires permanently. I also went with the single spring coil around the plastic C spring to improve the servo saver tension.

The servo is a lot louder -- those metal gears sound cool, though. I feel a lot better that it's not going to break anytime soon. I also still need to work on the some of the linkage items because there's still some play in the setup but for now it's working.

Oh and I purchased a whole bunch of these servos, too. I guess too many. I need to figure out if I'm going to keep them for other projects or sell them off.
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Old 04-18-2012, 09:34 PM
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Sorry about that, they have been working so well for me I guess I forgot I had to press fit the saver. I just tried a new part #21049 on a spare MG90 and indeed it does require a press fit. Luckily the connection is plenty strong enough that you should never have any issues.
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Old 04-20-2012, 02:09 AM
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I've been searching around awhile and cannot find a definite answer. How do you get a sky lipo 1800mah 2s to fit in a RC18B
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Old 04-21-2012, 04:02 AM
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Default Servo Saver

I have found the easiest and cheapest way to solve the servo saver issue. I just threw a zip tie around the servo saver, tightened it down and problem solved. Way easier than the o-ring or ball bearing thing and cheaper than some aluminum parts.
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Old 04-21-2012, 05:52 AM
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Originally Posted by redskull1944
I've been searching around awhile and cannot find a definite answer. How do you get a sky lipo 1800mah 2s to fit in a RC18B
Velcro, assuming it fits length and width wise. I was using a 2200 and it fit.
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Old 04-21-2012, 06:36 AM
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Originally Posted by AreCee
Velcro, assuming it fits length and width wise. I was using a 2200 and it fit.
lengthwise it's ok but it barely fits in there width wise. does that 3racing graphite chassis give you more battery space or would I be better off modding my chassis
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Old 04-21-2012, 08:50 AM
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Originally Posted by redskull1944
I have found the easiest and cheapest way to solve the servo saver issue. I just threw a zip tie around the servo saver, tightened it down and problem solved. Way easier than the o-ring or ball bearing thing and cheaper than some aluminum parts.
So, no servo saver at all then? Gluing would also solve the problem, but won't take up the space that a zip tie will -- the clearance between the C spring and the chassis is minimal. Of course, the glue is harder to undo.
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Old 04-21-2012, 04:26 PM
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Originally Posted by alanmeyer
So, no servo saver at all then? Gluing would also solve the problem, but won't take up the space that a zip tie will -- the clearance between the C spring and the chassis is minimal. Of course, the glue is harder to undo.
I have the servo saver assembly there, I just zip tied the c spring. I used a small zip tie and put the clasp in the upper position near the steering bellcrank to avoid any clearance issues. The only issue I ran into was making sure that the zip tie was seated on the c spring as close to the servo as possible.
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Old 04-21-2012, 05:20 PM
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I've glued all the plastic parts together for the steering to work. This eliminates the servo "saver" aspect but atleast it turns.
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Old 04-22-2012, 04:37 AM
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Originally Posted by bobsavenger
I've glued all the plastic parts together for the steering to work. This eliminates the servo "saver" aspect but atleast it turns.
The zip tie is the perfect solution, it's acts as a stronger servo saver. It would be great for metal gear servos
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Old 04-29-2012, 03:10 PM
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What size wheel hexs do these use?
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Old 04-29-2012, 03:41 PM
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can a rc18t be converted to a sc18 less the belt drive
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