Rudder servo arm

[Ohio AV8TOR]

Easy peasy?  I have had many a SWB arm being far from easy to pull off the spline

 

[stangflyer]

Ohio.AV8TOR said
Easy peasy?  I have had many a SWB arm being far from easy to pull off the spline

I forget just where, but I saw a servo arm puller listed on a site once. Now where was that? 

 

[Ohio AV8TOR]

stangflyer said
Ohio.AV8TOR said
Easy peasy?  I have had many a SWB arm being far from easy to pull off the spline

I forget just where, but I saw a servo arm puller listed on a site once. Now where was that? 

I want one of them, if you find it please post.  

 

[Ohio AV8TOR]

Stang thanks for the suggestion of the puller.  I did a little searching and found this by Seacraft and for only $3.50.  Is this like what you saw?  The problem with this is it won't slide on with the cable links on and not even sure if it would slide on an offset arm.  

 

[stangflyer]

Yep..that's the one. (http://www.espritmodel.com/servo-arm-remover-for-v1-secraft-arms.aspx) Not sure if you need to slide in on one end or another, but one would think with the way Seacraft designs their servo arms, they would have taken that into consideration. My thought is: Like many of the automotive style pullers I've used in building motors, you "rock" it from one side to the other over the top of the arm in the center where the servo screw goes. This however I am not sure of. For a mere $3.50, I would be interested to find out. I know that in removing the servo arms from my $150.00 servos, I usually have to pull and wiggle and pull and then they finally pop off. Seems to me that is a lot of unwanted stress on the gear train as well as cases of our high dollar servos. I wonder if they are available yet???

 

[Ohio AV8TOR]

That got me thinking and I just might make something that I know will work.  I am going to take some 1" square bar stock ans machine a cutout as wide as necessary to slide in which will make the top half think.  This is great for the extra thickness for threads for the clamp down screw.  Then machine a slot on the bottom so it slides in from the side.  I will draw it up in cad later  and post a picture.  This way the end ball links can remain on if one desires.  

 

[Ohio AV8TOR]

I would love to find something like this or maybe I will make one.  This was it can be slid in from the side.  Has anyone seen one like this?  The top hole will be threaded for the clamping/pulling screw force. 

 

[stangflyer]

Ohio.AV8TOR said
I would love to find something like this or maybe I will make one.  This was it can be slid in from the side.  Has anyone seen one like this?  The top hole will be threaded for the clamping/pulling screw force. 

Awesome idea. It just might be the ticket we all have been wanting. Heck, you might be able to mass produce them for a small profit. Of which will be dedicated solely to the purchase of new planes or parts....!!!!

 

[ZRX212]

My 2ct., I install my rudder cable ball links on the bottom of the SWB arm, read somewhere it applies
less leverage to servo gears + bearings , yes that means screws in from bottom , sometimes trying
to remove the metal arm is such a PI, I just remove servo, install hwd., pop back in.