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View Full Version : Got myself a Metadyne Thumper (No. #157)


VagabondStarJXF
11-02-2011, 12:17 PM
I liked the look of this marker when I first saw it but I was way too late for the pre-order. Then I started reading up on it and the difficult birth it's had. I was kinda put off to be completely honest. Then, after a lot of unnessesary stressful times I've had recently, I needed some retail therapy (Hey. If it's a good enough excuse for the ladies then I'm all for equality...). Thus it was time to start reading hundreds of posts about the way it's being/been resolved. I was happy with what I'd read so I started looking for one for myself. I can't afford the price of a new one so I looked around for a used one. I saw a few for sale nice 'n cheap, missed a couple because of lack of funds, then saw this one at a reasonable price on PBN.

http://i225.photobucket.com/albums/dd99/VagabondStarJXF/Metadyne%20Thumper/02Nov2011/CIMG1286.jpg
http://i225.photobucket.com/albums/dd99/VagabondStarJXF/Metadyne%20Thumper/02Nov2011/CIMG1289.jpg
http://i225.photobucket.com/albums/dd99/VagabondStarJXF/Metadyne%20Thumper/02Nov2011/CIMG1291.jpg
http://i225.photobucket.com/albums/dd99/VagabondStarJXF/Metadyne%20Thumper/02Nov2011/CIMG1297.jpg
http://i225.photobucket.com/albums/dd99/VagabondStarJXF/Metadyne%20Thumper/02Nov2011/CIMG1299.jpg


I pm'd the seller and waited patiently. The seller I bought it from is living in England but was in Sicily when he got my pm's (I think he's in the US Army). Fortunately he was due to return to England a few days later so I jumped on it. He got back on Monday, shipped it yesterday and I got it in my hands today. He even threw in a J&J barrel which I wasn't expecting. He told me that it has had the internals updated and, as you can see from the pics, it has the open class adapter, CCM feedneck, 45 Frame and both sides have the thumb cocking plates. There isn't the stock class feed tube or stock barrel but that's ok. I've already sent an email to Metadyne to see how much these bits are (if they're available).

It was a bit gunked up with Dow55 grease but it seemed to stick a little when cocking. Not a bother to me but there was a problem with the safety that would've been a bother. It was jammed full open so I wouldn't be able to use it at my usual paintball field. This meant I had to take the trigger frame apart and clean out the grease to fix the safety. Now, strangely, the marker seems to cock without that sticking it had. I'd even say it cocked a little more smoothly than before too. Very Strange.

Anyways, seeing as the whole thing would probably do well from a complete strip and degrease, I figure that I could get this marker re-anodised before I reassemble it. I was thinking of copper or bronze. What do y'all think?

TheDarkShadow
11-02-2011, 01:52 PM
I feel out of the loop, I've never even heard of that. a copper or bronze anno would look cool

HelpDeskHustler
11-02-2011, 10:47 PM
It's a pump where the barrel is the pump... it's pretty hot. I think there are at least 3 hand positions to pump this beauty -- the barrel, the thumb area on the pump bar and the back block. If I still played I might look into it.

VagabondStarJXF
11-03-2011, 01:19 AM
It's really small too. I have small to medium sized hands and I'm able to comfortably hold the marker in my right hand, pump the back plate with my thumb and shoot without needing to stabilise the marker with my left. The balance is a bit front heavy with a normal length barrel (e.g. 14"-16"), even with a semi light barrel like the J&J, but with a shorter one (e.g. 8") the marker balances nicely. I think I'd like to add a T2W stock to see how it feels.

Ace24
11-03-2011, 05:37 PM
Whoa!

I want one. That is pretty freaking sick. So, I'm intrigued, how does the inside look? Is it a stack tube design like a cocker? Or is it single tube like a Nelson?


Actually, I just watched a video and now I'm not so sure lmao.

leed
11-04-2011, 11:15 AM
So it's a mechanical pump Nova?

VagabondStarJXF
11-05-2011, 02:25 PM
So it's a mechanical pump Nova?
I don't know. What's a nova?

edit:
Yay! I've found some (total of 4) 12g caplets hiding away with my T9! Erm... I think I'll strip it down, clean out the dow55 and relube with petroleum jelly before I gas it up... Just to be good, y'know, because I'd already cleaned out the trigger frame 'n stuff. I won't have a chance to buy any more 12g's before the new year so I figure it's a good idea to cycle the correct lube through the internals before I run out of gas. :)

Ace24
11-06-2011, 07:49 AM
Lol the owner before you may have already damaged the valve with the dow

HelpDeskHustler
11-06-2011, 09:14 AM
I don't know. What's a nova?

edit:
Yay! I've found some (total of 4) 12g caplets hiding away with my T9! Erm... I think I'll strip it down, clean out the dow55 and relube with petroleum jelly before I gas it up... Just to be good, y'know, because I'd already cleaned out the trigger frame 'n stuff. I won't have a chance to buy any more 12g's before the new year so I figure it's a good idea to cycle the correct lube through the internals before I run out of gas. :)

Petroleum jelly? got any white lithium or dow 33?

Lol the owner before you may have already damaged the valve with the dow

Probably just the orings... the rest of the valve should be fine. I'm not sure why anyone would willingly slather on D55. That stuff is supposed to be so minimal only and in very limited situations (timmies).

VagabondStarJXF
11-06-2011, 10:39 AM
According to the Metadyne vid the Thumper is designed for petroleum jelly (aka Vaseline) only.

The previous owner just tried what he had laying about in his toolkit. He told me that he'd tried a little but it didn't have much effect so he added more and more until it was smooth. No bother to me. I'll just have to degrease then change out the o-rings, I guess, and I'll be good to go. Now I just need to buy some more degreaser. I've ran out.

HelpDeskHustler
11-06-2011, 01:03 PM
Hmmm... odd. It's nice that they designed it for petroleum -- but it was my impression that not only can petroleum jelly harm synthetic o-rings but it's also far less consistent from brand to brand than white lithium or dow33. Make sure you only use jelly without fragrance or other additives that are designed for humans (lotion etc).

Ace24
11-06-2011, 05:58 PM
How much did you pick this up for if you don't mind me asking? I'm looking to get my hands on one now.

HelpDeskHustler
11-06-2011, 07:14 PM
I see one on PBN for 225 right now.

VagabondStarJXF
11-07-2011, 12:56 AM
How much did you pick this up for if you don't mind me asking? I'm looking to get my hands on one now.

I got it for $240 shipped.

I see one on PBN for 225 right now.

That looks like a very nice price being that it has the stock class feed aswell as the open class adapter. If I had the money for a second one I'd buy it.

HelpDeskHustler
11-07-2011, 07:57 AM
If I had money, it'd be gone. My only hesitation is that it's openly admitted to having "a few quirks to work with". Who knows what that really means.

leed
11-07-2011, 06:33 PM
I don't know. What's a nova?

edit:
Yay! I've found some (total of 4) 12g caplets hiding away with my T9! Erm... I think I'll strip it down, clean out the dow55 and relube with petroleum jelly before I gas it up... Just to be good, y'know, because I'd already cleaned out the trigger frame 'n stuff. I won't have a chance to buy any more 12g's before the new year so I figure it's a good idea to cycle the correct lube through the internals before I run out of gas. :)

The Nova is an old (I mean old) pneumatic marker that relieved the idea of a moving bolt by pneumatically moving the barrel forward and back.
http://www.magillsquality.com/nova1.jpg

And I was wrong to say that it is a Mechanical Nova, as the Nova was mechanical (but penumatic). Instead this would be considered simply a Pump Nova.

Nothing against the marker or Metadyne, but from the few videos I watched on YouTube, it would seem as though the markers available are really still Prototypes with all the bugs that come with them.

EDIT:

Okay, so if any of you don't know how this gun works (I didn't before), the key is it uses a spring loaded rotating mass instead of a spring loaded sliding mass to actuate the valve. Beyond that and the barrel instead of a bolt, it's more or less the same as anything else.

VagabondStarJXF
11-09-2011, 02:54 AM
Thanks for the info on the Nova. On the Thumper the barrel assembly is moved forward to feed the ball into the chamber and the rest of the parts don't move as far as I can ascertain... so I guess this would essentially be the same thing? Without having a Nova and taking both of them apart for comparison I can't be sure.