Silverback MDR-X

7980 Views 136 Replies 10 Participants Last post by Leo Greer, 2 mo ago

Doctor Jest

Discussion Starter · 6 mo ago

Intriguing. Probably over-engineered. I'm pondering how solid it could be as a long-range platform...with an Edgi barrel and Warhead motor.

-CNC aluminium wide bore cylinder/upper gearbox (26mm diameter, +19% compared to a standard AEG), including a spring quick change design.
-CNC aluminium cylinder head, NBR piston damper, stainless steel nozzle.
-CNC aluminium ventilated piston head, FKM o-ring, POM glider ring.
-CNC stainless steel & aluminium spring guide, equipped with a thrust bearing. 3 lugs design ensuring a better axial alignment.
- “Tappet plate-less” construction.
-CNC aluminium piston body, hardened MIM steel 16 teeth rack.
-18:1 torque up gear set, hardened MIM steel.
-ADC 12 aluminium gearbox carter, 10mm ball bearing.
-Designed to operate on 11.1V Li-Po batteries (possibility to operate on 7.4V).
-Electronic Trigger Unit, CPU motor control, gear cycle and fire selector position detection by Hall Effect sensor. 2 mosfets for power, 1 mosfet for active braking.
-Neodymium high-torque motor 19000RPM (11.1V), short axis.
-Silver-plated wiring, Teflon coated.

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121 - 137 of 137 Posts

WhollyBlasphemous

· #121 · 4 mo ago

I agree, I think that this thing needs a little more time in the oven so to speak. I really like the innovation and I am wanting to support companies that take risks to break the mold to move the sport forward. But it's hard to justify the price tag when there are things that I would expect to be non-issues on a replica at half the price. If I got this gun I would shim it before I even pulled the trigger by the sounds of it. I also shouldn't have to fabricate body shims on a gun out of the box.

WhollyBlasphemous

· #122 · 4 mo ago (Edited)

Follow up video taking down the gearbox
TL;DW on the unhappy noises from the gearbox is that it seems like motor is being forced to engage the bevel gear at an angle due to said gear being too far out.

RonSwanson

· #123 · 4 mo ago

@Doctor Jest insert office it's happening meme here

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Doctor Jest

Discussion Starter · #124 · 4 mo ago (Edited)

Haha yes. He hates it.......

The bevel gear doesn't mesh properly with the motor pinion and the one solution I've seen is to take 1-1.5mm from the rear of the gear to allow you to shim it properly.

Edit: He shimmed it and it still misfeeds.

SO VERY GLAD I gave this one a miss after all my initial enthusiasm. I think I'm going for an SVU and keeping it under 350fps.......

Doctor Jest

Discussion Starter · #125 · 3 mo ago

A couple of chaps have come up with fixes, one of them is of course, Luke...

Leo Greer

· #126 · 3 mo ago

The fact that you have to fix it almost guarantees I’ll never own one.

WhollyBlasphemous

· #127 · 3 mo ago

Leo Greer said:
The fact that you have to fix it almost guarantees I’ll never own one.

All these guys are also raving about how Silverback does a great job about taking critique on the chin and then making it better. I hope a revision is on the horizon to make it better. I did see a video about the performance of the platform and he said it was quite good out of the box. If I can find it again I'll link it here

Reactions: 1

Leo Greer

· #128 · 3 mo ago

WhollyBlasphemous said:
All these guys are also raving about how Silverback does a great job about taking critique on the chin and then making it better. I hope a revision is on the horizon to make it better. I did see a video about the performance of the platform and he said it was quite good out of the box. If I can find it again I'll link it here

For everyone’s sake I hope you’re right. Unfortunately there’s nothing subtle about what they got wrong—you can tell as soon as you pick it up and pull the trigger. Silverback knew it was bad when they put it out. Hopefully they work it out in later versions.

Pretzel

· #129 · 3 mo ago

It certainly took them a while to get the SRS to something... that people actually liked. hopefully gen 2 of the MDR will be the same.

Doctor Jest

Discussion Starter · #130 · 3 mo ago

Luke mentioned that all the feedback from himself and, I think, Jaeger Precision, both went straight to Silverback from Jason (Longbow) so hopefully there will be a Gen2 with a more correctly sized bevel gear and more substantial handguards. Other than those two issues, it has been remarkably free from concerns overall......

Pretzel

· #131 · 3 mo ago

It would be nice if there was a jumper or dip switch to disable active breaking as well for gen 2 for people who wanted to use brushless motors

WhollyBlasphemous

· #132 · 3 mo ago

Pretzel said:
It would be nice if there was a jumper or dip switch to disable active breaking as well for gen 2 for people who wanted to use brushless motors

Honestly one thing that doesn't cease to amaze me is how...rudimentary the ETU appears to be. Wire jumpers and separate trigger boards? The fact that the ETU isn't programmable on the fly like a Perun or Gate when Double Eagle can put a Titan clone in a $180 SMG is actually beyond me. For $600 in 2023 I do expect a programmable etu that doesn't require jumpers

Doctor Jest

Discussion Starter · #133 · 3 mo ago

Might be a concession towards the fact that with separate boards you literally can't use it on full auto with DMR power levels - which again, is a mandatory feature on some sites. That said, YES would it be so bad to include a GATE or Perun?

WhollyBlasphemous

· #134 · 3 mo ago

I figure it's some concession towards that, however I know of a lot of guns with ETUs that either come software or mechanically locked to semi only.

My point was just that I would expect some programmability of the ETU at that price point. Especially when things like active breaking are enabled by default.

Leo Greer

· #135 · 3 mo ago

The option is What’s nice… give us the option to have a Perun for more money. Like What Arcturus does with their AK12 models.

The AK12PE is what this should’ve been, in terms of gearbox insides at least. That rifle is JACKED for a stock gun…

Doctor Jest

Discussion Starter · #136 · 2 mo ago

Leo Greer said:
The option is What’s nice… give us the option to have a Perun for more money. Like What Arcturus does with their AK12 models.

The AK12PE is what this should’ve been, in terms of gearbox insides at least. That rifle is JACKED for a stock gun…

To be honest, the AK12PE is even more expensive over here than the MDR-X is.........so perhaps not quite stock ;-)

Reactions: 1

Leo Greer

· #137 · 2 mo ago

Makes sense--here in the USA the price difference is swung the other way by a fair margin.

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