ORIGINAL: slipkid
(1)In my question about the DEPS, I guess my main concerin at the moment is the required force to move the currently installed setp back and forth ( carbon tubes not attacehd at Elevator end, but are connected to ball link at fuse, ready to take attachment to servo in carbon servo tray.
(2)THe original owner I bought it form , said that the carbon fiber tubes in the original DEPS setup were no longer available and the tubes he used for the pushrods are clear plastic. I intend on using a high quality digital servo to drive, but I hope it could support minor elevator changes that I am sure will be needed.
(3)An additional concern is that the DEPS pushrods exit the rear fuse leaving what appears to be a significant run of unsupported tube to the anticipated elevator hook up - wondering about the flex here as well. I appreciate your expeience and guidence here - I am reading the assembly manual to learn more as fast as I can
Joe F.
Joe
If I could jump in here, I am concluding from your post that the DEPS has a problem with the amout of force to move the rods inside the sheaths, CORRECT ?
- a couple of questions & possible suggestions. I numbered your quote to address them in order 1 2 3
#1 A properly installed DEPS should NOT require much force to move the pushrod. A really "good" install will be so free that the weight of the elevator will make it drop when you turn the system off ( that's pretty low resistance)
We need more info on the DEPS install , as they can be done a couple of different ways, to help you out with this problem.
Is it on a crutch with thread wrapped around the sheathing. If so read back a few posts - more than one person has wrapped the thread too tightly and caused extra friction ( NOT GOOD)
If it's installed differently and the sheathing is anchored but the pushrod is too big in diameter - carefully measure the size of the carbon pushrods and purchase replacement rods slightly smaller. Simple to slide the original rods out and slide the smaller ones in & it should free up. CST [link=http://www.cstsales.com/products.html]cstsales[/link] will have the size rods you need.
#2 Well it looks like I sorta addresed #2 above SORRY
#3 I've seen people add a wooden crutch about 1/2 way between the exit hole & the end of the rod to prevent flex. It doesn't take much in size , will hardly be noticeable but well worth it.
A properly installed and supported DEPS system is just so SOLID and smooth I'd hate for you to abandon one that's already in the plane when it might be easily fixed.
Now the debate over DEPS versus servos in the tail is not worth discussing here - It's been hashed out elsewhere. I feel it is a personal taste type thing. I've flown both and I'll do DEPS any time I can from now own.