TREX250 Tail analysis, spacer upgrade and Chinese weights

[Roadrune]

How about the new tail hub, will your weights be tuned for that as well? I suppose the washer won't fit? Or will you be making one for those aswell?

I have the new hub, and there's quite a bit of slop in the holders:(

[HEIM JOINT]

How about the new tail hub, will your weights be tuned for that as well? I suppose the washer won't fit? Or will you be making one for those aswell?

I have the new hub, and there's quite a bit of slop in the holders:(

The new hub has no effect on the Chinese weight tuning.
When you say washer I am guessing you mean the custom spacer set in the video that allowed you to preload the bearings. That also is unaffected by the new hub. The custom spacer set will allow you to adjust the slop out of the blade grip when using (2) 1.2 mm wide bearings in each grip.

HEIM JOINT

[Roadrune]

Sorry for my bad english, so i need to ask.....

So basicly are you saying that i can use the chinese weights, AND the spacers (yes, that's what i ment), if i change to 2 bearings instead of the one?

[HEIM JOINT]

Sorry for my bad english, so i need to ask.....

So basicly are you saying that i can use the chinese weights, AND the spacers (yes, that's what i ment), if i change to 2 bearings instead of the one?

Yes, That is what I am saying. The new hub has no effect on the custom preload spacer set or the Chinese weights.

HJ

[HEIM JOINT]

Robin,

Will your weights include the needed bearings and washers? Or will we need to purchase the bearings from another vender?


The Chinese weights and the spacer sets are two different products.

The Chinese weights are a set of 2 nut and bolt weights as seen in the video.

The preload spacer set is just spacers and grip screws. you will need to supply your own bearings.

HJ

[kkent25]

The Chinese weights and the spacer sets are two different products.

The Chinese weights are a set of 2 nut and bolt weights as seen in the video.

The preload spacer set is just spacers and grip screws. you will need to supply your own bearings.

HJ

Great thanks!! I am looking forward to trying these out!!

[Roadrune]

Will the new tail hub take 2 bearings? My manual still say there are 2 bearings, but according to readyheli, my serial # claims it's the new type, which i understand have only 1 bearing? I will open it when i get to it and check, but could anyone please guide me to some good bearings, and tell me if 2 will fit? I am confident that 2 will perform better then 1.

[HEIM JOINT]

Will the new tail hub take 2 bearings? My manual still say there are 2 bearings, but according to readyheli, my serial # claims it's the new type, which i understand have only 1 bearing? I will open it when i get to it and check, but could anyone please guide me to some good bearings, and tell me if 2 will fit? I am confident that 2 will perform better then 1.

The blade grips are what hold the bearings and yes they will hold the 2 bearings and the preload spacer set.

The Gaui 203250 bearings are what was used in the final test. They are available from anyone who handles Gaui. They seem to work well and are relatively inexpensive.

Yes as you could see in the video 2 bearings with the preload spacer set was virtualy slop free. IMO that aint gonna happen with one bearing.

You will have to trim the base of the tail blades to clear the new balde grip screw when using the preload spacer upgrade.

HJ

[Roadrune]

The blade grips are what hold the bearings and yes they will hold the 2 bearings and the preload spacer set.

The Gaui 203250 bearings are what was used in the final test. They are available from anyone who handles Gaui. They seem to work well and are relatively inexpensive.

Yes as you could see in the video 2 bearings with the preload spacer set was virtualy slop free. IMO that aint gonna happen with one bearing.

You will have to trim the base of the tail blades to clear the new balde grip screw when using the preload spacer upgrade.

HJ

Thanks.

[gyronut]

TTT

[Nate Quan]

Heim Joint

How is production looking for the new components? (weight and spacers)

[HEIM JOINT]

Heim Joint

How is production looking for the new components? (weight and spacers)

Should be shippping the first or second week of January

Thanks, Robin

[Nate Quan]

Sounds Great

Thanks

[rickyg]

Wow this looks like fun! I have the original tail and it seems to be holding, but all I'm doing is hovering. I also have the RMA'd new replacement hub, but haven't put it on yet. From what I've read, I have to get my own bearings elsewhere? Is there anyway I can get everything from you? (for a fee of course) Thanks

Ricky

[HEIM JOINT]

Wow this looks like fun! I have the original tail and it seems to be holding, but all I'm doing is hovering. I also have the RMA'd new replacement hub, but haven't put it on yet. From what I've read, I have to get my own bearings elsewhere? Is there anyway I can get everything from you? (for a fee of course) Thanks

Ricky

I am not set up to supply the bearings at a competitive price
thanks, HJ

[OICU812]

ttt

[leslie]

Hi Heim Joint,

thank you for the videos!! I went through my tail looking at the bind points you mentioned and it has really helped out my bird to remove the binding especially in the bushings.

You mention that the spacers will fit with two bearings, what size bearing? 1.2mm or 2.0? I'm unsure if I would have space with two 2mm bearings. I am unfamiliar with the Gaui bearing size, hence the question.

Cheers,
Leslie

[HEIM JOINT]

Hi Heim Joint,

thank you for the videos!! I went through my tail looking at the bind points you mentioned and it has really helped out my bird to remove the binding especially in the bushings.

You mention that the spacers will fit with two bearings, what size bearing? 1.2mm or 2.0? I'm unsure if I would have space with two 2mm bearings. I am unfamiliar with the Gaui bearing size, hence the question.

Cheers,
Leslie

Leslie,

The bearings that will work with the spacer set are a 681X bearing (1.2mm wide). They are the same as the original 2 bearings that were in the first T250's before they changed to the single 2.0mm wide bearing. That 681X size bearing is all over the 250 in various places. The Gaui bearing number I mentioned is a 681X.

HEIM JOINT

[jockstrap]

Heim Joint,

Any idea yet on pricing for the T-Rex 250 chinese weights ?

Also - are you able to tell me 450 and 500 pricing ?

Thanks in advance...

[specialk]

+1 for jockstrap's post (man that sounded really weird) :oops:

[tweav]

All I know is I want them as soon as I can get a set .I've had my tail stick every time I've flown it . I've grounded my 250 until the tail gets fixed. Pm me with a price and where I can get it , Please?????

[HEIM JOINT]

Heim Joint,

Any idea yet on pricing for the T-Rex 250 chinese weights ?

Also - are you able to tell me 450 and 500 pricing ?

Thanks in advance...

All 250 450 500 Trex weights are $16.50 +$2.00 S&H in US
250 and 450 will be ready in about week.

Thanks, HJ

[HEIM JOINT]

All I know is I want them as soon as I can get a set .I've had my tail stick every time I've flown it . I've grounded my 250 until the tail gets fixed. Pm me with a price and where I can get it , Please?????

Keep in mind that the Chinese weights and the preload spacer set are two different things.
The Chinese weights will NOT FIX a sticky tail. They could make a sticky tail worse. They will only greatly reduce the pushrod force on a properly funtioning tail.

The preload spacer set will enable you to reduce the slop in your blade grips to a very low level. But in my testing in the video the preload spacer set itself did NOT FIX the high pushrod force problem. I had to replaced the original blade grip bearings and then the pushrod force dropped to the expected 10-12 oz. (without chinese weights). If you have a new single bearing tail you will have to buy 4 of the 681X bearings to use with the preload spacer set. You will also have to trim a little off the blade where it touches the new longer screw that goes thru the bearings. I will post a video here of the preload spacer set install in a few days.

Thanks, HJ

[rwleigh]

All 250 450 500 Trex weights are $16.50 +$2.00 S&H in US
250 and 450 will be ready in about week.


Can you give us a price for S&H to the UK please HJ.

Thanks,

Richard.

[HEIM JOINT]

Can you give us a price for S&H to the UK please HJ.

Thanks,

Richard.

$3.00 to anywhere in the world for up to 2 sets

Thanks, HJ