Jump to content
Sign in to follow this  
AnakChan

Initial Impressions of the TM SCAR-L Recoil Shock AEG System

Recommended Posts

Well, I got mine today after a massive walk to the Parcelforce depot. It's not as impressive as I'd hoped, The plastic was a bit of a let down, but I'm not too fussed about that, as long as it holds up. Mine came with a bit of a loose fire selector, just on semi though; it does seem a bit 'mushy' which I'm not so pleased with.

 

The biggest let down is the fact that it does not fire D: insert a battery and a pull of the trigger results in nothing. The motor moves ever so slightly, but doesn't cycle the gearbox. Really not happy my investment doesn't even fire out of the box :(

Share this post


Link to post
Share on other sites

Very unusual, I'd first play around with the motor height adjustment, then try taking the motor out of the pistol grip (but still connected to the wires) and seeing whether it spins ok by itself.

Share this post


Link to post
Share on other sites

I took the motor out, and it works fine. Adjustment didn't help either, I thought that TM had maybe changed the convention for Tamiya connectors but a Multimeter test threw that out of the window :3

Share this post


Link to post
Share on other sites

I know it may sound silly... but remember about the "bolt lock", maybe the gun thinks its empty and you need to press it ?

Share this post


Link to post
Share on other sites

Jacky mate, my advice to you is to stop *fruitcage* around with it. Its a TM gun, it should work out of the box. If it doesn't, the best option is always to talk to the dealer you got it from - don't attempt a fix yourself. Even if you know what you are doing you'll void your warranty and potentially screw something up big time (a likely scenario considering the TM SCAR is a brand new gun which none of us are 100% familiar with).

Share this post


Link to post
Share on other sites

If all the electrics and the motor are working then I'd say you're pretty much left with a gearbox issue, locked up perhaps. Though it does remind me of a problem that's fairly common with the TM SOPMOD design, if you put on a Magpul grip without using the upgrade metal base plate then when you pull the trigger the motor only moves a tiny bit but isn't able to cycle the gun.

Share this post


Link to post
Share on other sites

If it was me id hang the motor loose and test it, if it works id thenput the motor in the grip and use my thumb as the base plate. push it in untill it cycle the gun. Then you know if its a: locked in the gearbox, or B: just a motor hieght issue. It could of cause be poor battery or poor connection or poor motor.

 

Kinnerley - I was given a sopmod with magpul grip, i found it too pushed it up too high but i really like the idea of plastic base plates it removes any chance of a short circuit so i modded the base plate so the motor sits lower.

Share this post


Link to post
Share on other sites
I was given a sopmod with magpul grip, i found it too pushed it up too high but i really like the idea of plastic base plates it removes any chance of a short circuit so i modded the base plate so the motor sits lower.

I don't think short circuits should be a problem to be honest, I can see what you're saying but I've now got the metal plates on all 3 of my EBBRs and they all function fine, no electrical issues.

Share this post


Link to post
Share on other sites

I stripped it down to the gearbox and had a look around, there was a slight rattling from the inside that I was concerned with. I didn't venture any further and attached to lower receiver to test it. Oh yay, it works! Adding the upper receiver didn't hinder it at all, and the outer barrel assembly continued this trend.

 

So now fully working after a disassembly, I can only assume that something was misaligned during transit. Would be interesting to know the forces exerted on the replica during that time, getting dropped in a hard case could possibly replicate this instance and ruin the start of a good day out ^^

Share this post


Link to post
Share on other sites

I don't think short circuits should be a problem to be honest, I can see what you're saying but I've now got the metal plates on all 3 of my EBBRs and they all function fine, no electrical issues.

 

 

 

Not with the metal magpull as ive havent heard any reports but its a very regular thing that i need to mod the base plate of the standard tm grip when installing any motor other than the eg1000. People assume different motors are the same but they arnt some have contacts very close together or even higher than the eg1000. Resulting in the motor being A: pushed in to far or B: the metal contacts touch the tm matel base plate and you get intermietant fuse poping.

 

Just something ive come accross with the mirade of parts im asked to fit, or they already have fit.

 

 

The plastic magpull base plate simply needed "thinning" so it fits easier in between the two wires and the motor. Basically you think the motors in but its sitting way to low. making sure the motor plate goes inbetween the wires sits the motor at the right height and allows normal adjustment. Basically the same mod i do to all tm base plates now.

 

Jackypoo - Some times the motor gets in a stuck positon up, when you reseated it tha might have "reset" the motor height, also the recoil weights can stick with cold, removing the upper might have been enough to free it. Pshhh nothing concret just thinking out loud.

Edited by Richard Y

Share this post


Link to post
Share on other sites

I guess it can get quite cold at 40,000 feet, lol. Either way, I'm pleased with it; I was much happier today after it worked xD

 

With regards to the bolt catch, how stiff is it supposed to be? Mine required a fair amount of force to flick back, I was just worried I'd snap something ;)

Share this post


Link to post
Share on other sites

A 7.4v LiPo gives basically the same RoF as a 9.6v NiMh, and obviously it depends on the retailers you have near by but personally I can get a quality new LiPo pack for less than £10, whereas a mini NiMh from an airsoft shop would be at least £15-20. As for charging, with the bit of kit I have, I just plug in the balance connector and it stops when the cells are full and balanced; could not actually be any simpler.

Share this post


Link to post
Share on other sites

yup lipos are quicker and easyer to charge. Batterys are like ram its actually cheaper to buy the new stuff than it is the old technology. Try and get an old nicad pack it will set you pack loads and be rubbish.

Share this post


Link to post
Share on other sites

I crammed a mates 2100mAh 7.4 into mine, it stop me adjusting the stock though :c

 

Just an update on the upgrades from mine; with the standard barrel, Richardy's M100 gave me 351 fps almost every time, with the odd 363 reading here and there. After a Madbull 363mm was installed, the results jumped to ~375 give or take around 3 fps. I just went back to the original spring out of desperation to use it legally and it tested from 336 to 346! I'll check it this Sunday at another site, just in case my Chrono is duff ;)

 

I know it's quite a bump, but thought I'd share these interesting results. I've got over the initial irks and think I've figured out the lockup isuue!

Share this post


Link to post
Share on other sites

The scars well know to produce a higher fps out of the box than the sopmod, its probably a shorter box by a fraction yet tm is comfortable using the same spring as the sopmod.

 

The scars out of the box are chronoing over 300...

 

If you need some middle ground i do a m90 spring as well as the m100. And rmemeber adding a spring guide (version 3) will als0 increase fps, you can go for a lesser spring and use the spring guide to bump it up a little.

 

what size lipo did i say? 1100 ? that was about all i could squeeze in there. 1200 wouldnt fit, not sure how you got the 2100 in there, any pics?

Share this post


Link to post
Share on other sites

It's a 2100mAh. I can't get any pics until I'm back at Uni, but I has to remove the little tab thing at the top of the stock. It was a VERY tight squeeze, and sat well below the rails TM had put in to keep batteries in place. I tried an Overlander 2200mAh and that was a tiny bit too long; the balance lead is always an issue too :3

 

I forgot about the spring guide, I can imagine it helps compression a fair whack. I'll test the fps after my next day out, I didn't take much time on lubing the piston's o-ring; I'll blame the range of inconsistency on that and the fact the stock spring saw less than 1k rounds!

  • Like 1

Share this post


Link to post
Share on other sites

Meh! That made me sad with all the useless stuff posted on this thread.

 

Anyhow, I just thought I would chime in with which battery fits in the stock.

 

One of my friend's dad has one of these things. I can't remember for sure which battery he has in his gun. I do know that its a Hyperion 7.4v lipo. I'm think its a hyperion 7.4v 1600mah 25C lipo.

 

For reference, I took a photo of a standard 8.4v 1600mah NIMH mini battery compared to the Hyperion 7.4v 1600mah 45C lipo.

 

IMAG0867.jpg

IMAG0868.jpg

 

The dimensions for the Hyperion 7.4v 1600mah 25C is 88.6mm x 33.5mm x 14.2mm. The 45C (pictured) has the dimension of 89mm x 33mm x 16mm

 

-----------

 

Dimensions for the hyperion 7.4v 2100mah 25C lipo is 105mm x 34.1mm x 14.9mm

 

Typically 2/3 A cells are 16mm in diameter. Which means that side to side it comes to about 32mm...plus some shrink wrap (maybe about 34mm?). I'm thinking that the 7.4v 2100mah is approximately the same size as your average 8.4v 1600mah NIMH mini battery. I'll have to take a pic of mine when I get home and post up.

Edited by sacairsoftsn00py

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×

Important Information

By using this site, you agree to our Terms of Use and the use of session cookies.