Ball Link Lengths

Henry · 01-07-2007, 05:38 PM

Could someone please give me the exact lengths in mm of the short AND long ball links (the plastic link only) that come with the 450? I am using, I think, the short links on my SJM400v1 and am having trouble getting zero pitch at mid-stick. According to the manual, my link assemblies are 2mm too short so I need to know if ordering the longer links will do the job.

Just so you know, I replaced the stock SJM links on the servo end of my pitch, aileron and elevator link assemblies with Align links and balls for easier, more accurate assembly. Me thinks I should have ordered (if I didn't)the longer of the two...there are only two stock lengths available for the stock 450, right?

By the way, Helihobby, where I got the first set of Align links, does not have the long links in stock. Any suggestions for an alternative source would be appreciated!

Finless · 01-09-2007, 02:42 AM

NO! I get asked for this all the time and you need to set up the heli properly and NOT trust what people give you for link lengths as this does vary by heli!

PLEASE do it by setting up the heli properly as you will learn so much more than copying someones link lengths that could be wrong to begin with!

Bob

fury · 01-09-2007, 06:30 AM

Quote:

Originally Posted by Finless

NO! I get asked for this all the time and you need to set up the heli properly and NOT trust what people give you for link lengths as this does vary by heli!

PLEASE do it by setting up the heli properly as you will learn so much more than copying someones link lengths that could be wrong to begin with!

Bob

Absolutely, my T-Rex is the first heli I have built for myself and I have learnt so much its unreal (all thanks to the help of this site and the great people that use it)

Well actually I am still building its but getting there.

Henry · 01-09-2007, 03:21 PM

Thanks for both of your responses but I would urge you to re-read my messsage. I need the length in mm of the ball links alone, not the ebtire link/rod/link assembly. Just the length of the plastic links by themselves. I understand there are three different lengths/sizes available from Align that will fit the small 1.5mm threaded rod included with my SJM400 kit.

Pinecone · 01-09-2007, 06:24 PM

I don't remember different sized links on my SE. On my EP8 yes, but not on the Trex.

Mike Spence · 01-09-2007, 06:57 PM

Only one size on my SE, 13mm.

MarkD · 01-09-2007, 07:10 PM

Quote:

Originally Posted by Finless

NO! I get asked for this all the time and you need to set up the heli properly and NOT trust what people give you for link lengths as this does vary by heli!

PLEASE do it by setting up the heli properly as you will learn so much more than copying someone's link lengths that could be wrong to begin with!

Bob

Actually it does make you wonder why every setup is different. It's the same model frame etc. (talking about the SE here)

Mech all the linkages should be the same up untill the blade grip linkages if the servos are set up 90 deg at the start

Radio set-up - then that's a different story

01-07-2007, 05:38 PM	#1
Henry Registered Users My HF Map location Join Date: Aug 2005 Location: Rockville, Maryland	Ball Link Lengths Could someone please give me the exact lengths in mm of the short AND long ball links (the plastic link only) that come with the 450? I am using, I think, the short links on my SJM400v1 and am having trouble getting zero pitch at mid-stick. According to the manual, my link assemblies are 2mm too short so I need to know if ordering the longer links will do the job. Just so you know, I replaced the stock SJM links on the servo end of my pitch, aileron and elevator link assemblies with Align links and balls for easier, more accurate assembly. Me thinks I should have ordered (if I didn't)the longer of the two...there are only two stock lengths available for the stock 450, right? By the way, Helihobby, where I got the first set of Align links, does not have the long links in stock. Any suggestions for an alternative source would be appreciated!

01-09-2007, 02:42 AM	#2
Finless Team Taco VP My HF Map location Join Date: Nov 2005 Location: Stanton, Ca. USA	NO! I get asked for this all the time and you need to set up the heli properly and NOT trust what people give you for link lengths as this does vary by heli! PLEASE do it by setting up the heli properly as you will learn so much more than copying someones link lengths that could be wrong to begin with! Bob __________________ "Don't Taco My Pack Dude!" To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. *To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.* *To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.* *To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.* *To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.*

01-09-2007, 06:24 PM	#5
Pinecone Registered Users Join Date: Sep 2006 Location: Maryland	I don't remember different sized links on my SE. On my EP8 yes, but not on the Trex. __________________ Terry AMA#47402, IRCHA # 3395 Blade CP "Pro", Trex 450SE, PiccoZ, Quick of Japan EP8v2 EX, Hurricane 550, Hurricane 200, JR Vibe 50, Blade mCX, Bergen Intrepid Gasser, Pantera 50, Blade mSR, Novus CP

01-09-2007, 06:57 PM	#6
Mike Spence Registered Users Join Date: Nov 2006 Location: The Chilterns, England	Only one size on my SE, 13mm. __________________ T Rex SE, HS65MG's, 401 with 9650 etc all put together and learning to hover with Bob's video help and the great Phoenix sim.

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01-09-2007, 03:21 PM	#4
Henry Registered Users Thread Starter My HF Map location Join Date: Aug 2005 Location: Rockville, Maryland	Thanks for both of your responses but I would urge you to re-read my messsage. I need the length in mm of the ball links alone, not the ebtire link/rod/link assembly. Just the length of the plastic links by themselves. I understand there are three different lengths/sizes available from Align that will fit the small 1.5mm threaded rod included with my SJM400 kit.