Vitavon Arms. Make this make sense!😤

[N. Mango]

Was having issues with getting new droop screws onto the arms. The arms come with "droop screws" that are no more than just grub screws, and they came out without issue.
Well, the new droop screws that I got just would not go in.
Ok, so I decided to take the arms off to make it easier to get on.
Sure enough, with the arms off, they went on without issue,

BUT.....

That's when I see why they were so difficult to screw in in the first place.
The droop screw holes were not tapped at a 90-degree angle with the arms. They are angled.
It would be awesome if they were angled outwards, but they are angled inwards toward the chassis! WHAT?!?!?!

Now I don't know if it's a mistake made or if they meant to do it at an angle,
But if it was meant to have an angle, the ONLY angle that would make sense is for it to be angled outwards.
This, to me, is a major design flaw, and I'm not very happy about it considering the cost of these parts.

On a positive note, I don't plan on adjusting them a lot, so messing with them won't be a constant thing.

You can see in the pictures how helpful it would be if they were angled outwards.
With them angled inwards, getting the hex driver in there to make adjustments are impossible.

 

[Horatio]

Was having issues with getting new droop screws onto the arms. The arms come with "droop screws" that are no more than just grub screws, and they came out without issue.
Well, the new droop screws that I got just would not go in.
Ok, so I decided to take the arms off to make it easier to get on.
Sure enough, with the arms off, they went on without issue,

BUT.....

That's when I see why they were so difficult to screw in in the first place.
The droop screw holes were not tapped at a 90-degree angle with the arms. They are angled.
It would be awesome if they were angled outwards, but they are angled inwards toward the chassis! WHAT?!?!?!

Now I don't know if it's a mistake made or if they meant to do it at an angle,
But if it was meant to have an angle, the ONLY angle that would make sense is for it to be angled outwards.
This, to me, is a major design flaw, and I'm not very happy about it considering the cost of these parts.

On a positive note, I don't plan on adjusting them a lot, so messing with them won't be a constant thing.

You can see in the pictures how helpful it would be if they were angled outwards.
With them angled inwards, getting the hex driver in there to make adjustments are impossible.
View attachment 248905View attachment 248906

Yeah, that's not all that sensible.

I get that on this rig they must be expecting some downward angle on the arms as standard, but it obviously compromises adjustment with typical drivers.

On the subject of droop screws, I highly recommend these by Avid RC

They're lighter, domed and won't chew up your chassis.

 

[N. Mango]

Yeah, that's not all that sensible.

I get that on this rig they must be expecting some downward angle on the arms as standard, but it obviously compromises adjustment with typical drivers.

On the subject of droop screws, I highly recommend these by Avid RC

View attachment 248907

They're lighter, domed and won't chew up your chassis.

I have those for my other Arrma rigs, but the Vitavon arms for the 8s use 5mm droop screws.
The screws I'm using have nylon tips. I never used them before, but others who use them say they work well.
I have these on radar if the nylon tips don't hold up.

 

[CertifiedMike]

They're lighter, domed and won't chew up your chassis.

Sounds like an ad for a toilet seat.

I don't know much about crawlers but I do know some ppl use Tworks droop screws on other rc's.

https://www.rc-tworks.com/products/tp-087-64-titanium-down-stop-screws-4pcs

They might be a helpful source of parts if Avid doesn't work out.

Avid is ULTRA FAST shipping orders to me and I've been very happy with all my purchases so far. Their cust service is great too!

 

[N. Mango]

Sounds like an ad for a toilet seat.

I don't know much about crawlers but I do know some ppl use Tworks droop screws on other rc's.

https://www.rc-tworks.com/products/tp-087-64-titanium-down-stop-screws-4pcs

They might be a helpful source of parts if Avid doesn't work out.

Avid is ULTRA FAST shipping orders to me and I've been very happy with all my purchases so far. Their cust service is great too!

Tworks is the only place that I could find 5mm droop screws.
They didn't have them when I tried to buy some, so I went another route.
They are still on the radar, though.

 

[xjtorc]

That's an extremely annoying reminder that Vitavon is just another way overhyped, way overpriced, Chinese brand.

 

[N. Mango]

That's an extremely annoying reminder that Vitavon is just another way overhyped, way overpriced, Chinese brand.

I wouldn't say overhyped...but pricey for sure and made in China.
Their parts are high quality, and this may just be a design flaw that wasn't caught.

 

[RetroThutmose]

Was having issues with getting new droop screws onto the arms. The arms come with "droop screws" that are no more than just grub screws, and they came out without issue.
Well, the new droop screws that I got just would not go in.
Ok, so I decided to take the arms off to make it easier to get on.
Sure enough, with the arms off, they went on without issue,

BUT.....

That's when I see why they were so difficult to screw in in the first place.
The droop screw holes were not tapped at a 90-degree angle with the arms. They are angled.
It would be awesome if they were angled outwards, but they are angled inwards toward the chassis! WHAT?!?!?!

Now I don't know if it's a mistake made or if they meant to do it at an angle,
But if it was meant to have an angle, the ONLY angle that would make sense is for it to be angled outwards.
This, to me, is a major design flaw, and I'm not very happy about it considering the cost of these parts.

On a positive note, I don't plan on adjusting them a lot, so messing with them won't be a constant thing.

You can see in the pictures how helpful it would be if they were angled outwards.
With them angled inwards, getting the hex driver in there to make adjustments are impossible.
View attachment 248905View attachment 248906

if you flipped them would they be pointing the correct direction? i have no idea what chassis this is regarding.

 

[N. Mango]

if you flipped them would they be pointing the correct direction? i have no idea what chassis this is regarding.

They can't be flipped.
It's an 8S Arrma Kraton.
I'm just happy that it's not something that will need constant adjusting. That would drive me crazy!

 

[CertifiedMike]

They can't be flipped.
It's an 8S Arrma Kraton.
I'm just happy that it's not something that will need constant adjusting. That would drive me crazy!

View attachment 248936

I don't know why my head went to crawlers when I posted.
It was late! It was early! I can't tell anymore!

 

[BashingBrian]

They can't be flipped.

Why not..?? I've not worked on my 8s for ages

 

[N. Mango]

Why not..?? I've not worked on my 8s for ages

The top and bottom have a different design. The machining is different on the top compared to the bottom.
It might work if flipped and swapped sides...???
I guess the correct answer is that it's not meant to be flipped.

If it ends up being too much of a hassle, I'll try flipping it and see if it can be done without issues.

 

[CertifiedMike]

Did you contact Vitavon about the issue? Maybe they have a fix or they will just send new arms?
I would try at least.

 

[N. Mango]

Did you contact Vitavon about the issue? Maybe they have a fix or they will just send new arms?
I would try at least.

I didn't.
No harm in trying. If anything, maybe it will help people who buy their arms in the future.

 

[N. Mango]

Did you contact Vitavon about the issue? Maybe they have a fix or they will just send new arms?
I would try at least.

So I contacted Vitavon, and their response is more perplexing than the issue itself....then it ended with a sales pitch.

Here's what they said...

"Hello Sir,

It does with angle on the top and flat on the bottom, I suggest that you can use our strap for limited traval to protect your shocks. thanks"

 

[xjtorc]

So I contacted Vitavon, and their response is more perplexing than the issue itself....then it ended with a sales pitch.

Here's what they said...

"Hello Sir,

It does with angle on the top and flat on the bottom, I suggest that you can use our strap for limited traval to protect your shocks. thanks"

That tracks.

 

[Horatio]

So I contacted Vitavon, and their response is more perplexing than the issue itself....then it ended with a sales pitch.

Here's what they said...

"Hello Sir,

It does with angle on the top and flat on the bottom, I suggest that you can use our strap for limited traval to protect your shocks. thanks"

This is why Chinese ads make no sense.....

 

[CertifiedMike]

Reply: Arms already shocks strapping. 2 angle to top on arm left. Please to forward arm fixment on strap needing repair.

 

[Horatio]

Reply: Arms already shocks strapping. 2 angle to top on arm left. Please to forward arm fixment on strap needing repair.

Total nonsense.

I mean - really?

 

[CertifiedMike]

Total nonsense.

I mean - really?

Indeed, nonsense... that was the point.