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There have been 137 items by Lunas (Search limited from 17-November 92)
not all 3d printers use abs
Is that possible yet to grind your own plastic up and extrude filament for a 3D printer? If so the idea of getting a 3D printer might be moving up on my list.
making filament is not too difficult you just need to heat the material evenly and precisely until it gets to a uniform consistency then it gets pushed through a die
Ill redo my measurements later tonight and repost but those are the numbers i remember from when i measured mine. you do get a bit more room by dropping the tray and just using the front. But I like to keep my nerf guns semi stock and would like to if i have to drop back to stock.
Buy the purple efest and mod for 18650 size or the 14500 red v2 they do about 10A the purple do 30A-60A though finding them in 14500 has been not fun. Also the eBay auction listed those at aaa size or 10440. Either the lister has a typo or he knows nothing about batteries.
Second the energizer charger is made for NiMH/NiCd 1.2v cells only you will either just ruin your 3.7v cells or make them live up to the fire part of the name.
Those L91 are not rechargeable if you remember the price you paid you will get 2-3 hours use out of them and then need to toss another pair in and repeat i dont know about where you live but those suckers are not cheap 10 bucks for 4 of them vs rechargeable...
The batteries you want are one of these Lipo 7.4 v if you go back to the motors the stryfe came with
if you stick with the hyper dash2
universal charger will charge any and all safely
If you do not want to mod the box to fit that battery in it you may use these stick with a good brand anything with fire in the name is a no no use 3 dummy for hyper dash or 2 or 1 dummy with stock motors.
Now onto the mistakes with the motors.
In parallel motors can suck more current they require the same voltage though the smell you are getting is your brushes burning. the hyper dash 2 motors like you yourself have posted are rated to 3v however they can suck 3-6A of current each so you need around 12A available minimally to be safe excess draw is going to cause heating of the cells and potential for discharge of fire. 15-20A would be preferred. To get the proper amps you have 2 options parallel packs (introduces balance issues and potential fire risks) or better cells. Now to continue the use of the hyper dash 2 you would need 1 3.7v battery even then it is going to over volt it a single LiFePSO4 would be closer at 3.3v but you already worked them at 8.4v 3.7 will be a vacation for them.
For the best performance you will want to go back to the old stock motors and toss 2 IMR in or the 7.4v lipo i linked.
There are hundreds of threads on many different sites including this one on why not to use batteries with fire in the name yet people still try doing so and then they ask why did my house burn down.
You can also go for a more complicated build they make dc-dc converter boards that handle decent amperage. Using one of those you can use whatever power supply you wish just dial it down to what the motors can handle.
But the bottom line is unless he does a full rewire with either lipo or IMR there will be no noticeable change. And really the biggest change will be with new motors too. There is a metal flywheel cage with upgraded flywheels out there that just looks sweet some neoprene washers on the mounting posts is all i would do in addition...
The only things i did with my stryfe is a rewire going from 22 gauge to 18 gauge solid core i put a battery gauge using the jam door as a off on switch for it open the gauge is on closed gauge is off greased up the trigger mech removed all the locks. Then put 2 IMR in for 8.4v with a long dummy i made using wood glue paper and more solid core wire. i can use my AA sized dummy to do 3 imr or all 4...
The stock motors shoot happily on 2 IMR 3 they get a bit angry and noisier but hit a bit harder on 4 they scream and stink and will let the smoke out if held too long.
my tray is more or less stock
I use Efest IMR 14500 cells get the v2 they are good for about 10A of current if you do go for better motors that can draw more then go for the Lipo mod.
But my stryfe does around 80-90 FPS and my darts are semi accurate to 100 ft on 2 IMR i carry a spare 2 for if i need to swap but i have yet to do so. The batteries are like 13-20 bucks on amazon for 2-4 and a charger is 20.
Remove the electrical tape therfore is a number of things you can use:
Duplicolor Truck Bed Coating
plasti dip<- most people use this it is cheap but eventually wears off.
I also wonder if just lightly sanding them with 1000-2000 grit sandpaper to get the smooth sheen off the flywheels would be enough.
IF you absolutely need to use AA shaped sized batteries that you can get in a place like wal-mart your stuck using NiMh or lithium primaries.
With rm2 you cant go much above stock 6 volts with proper current or you will fry them unless you c-mod them.
Best:Highest discharge Reasonably safe. Most expensive you will be looking at 10-40$ for the battery and 20-300$ for a charger.
4.2v rc lipo pack look for tenergy or a well made pack
7.2-11.1v rc race pack tenergy is a good brand you need a balance charger
Acceptable: less expensive than rc pack more expensive than nimh 10-15 for a pair of imr and 15-20 for a nitecore d4 charger. Use 1 or 2 in parallel unless you c-mod the rm2 using 2 in series is the most you should try 2 in series is 8.4v fresh off the charger 7.4v is what they will drop to then when dead 6.2v If you continue to run them down you will damage the cells and end up with batteries that wont take a charge.
14500 size lithium batteries li-Mn or Li-Fe-po4 High current they are available up to 20A discharge rates these chemistry are much much safer than Li-ion Li-Fe being the safest of the 2...
14500 Efest IMR Li-Mn 3.7v
14500 AW imr Li-Mn 3.7v
14500 Tenergy Li-Fe-Po4 3.3v
Bad: the cheapest about 10$ gets you 4 batteries and a charger. Nimh deliver about 1-2A in bursts but don't have the capacity to sustain much more than that. Lithium primaries can do 3 A continuous or 5A burst.
AA NiMH batteries 1.2v batteries
Lithium primary energizer or photo cells AA
worst:4-6 dollars a pop for 4 low current discharge
AA duracell rayovac energizer doesn't matter what they add to the end of it they all suck 500mA draw is the best they can muster.
*****Fire Li-ion unprotected cells (your asking for a fire or a face full of lithium hydroxide)
goes by many names: Trustfire and ultrafire are most common these are the typical cell most modders used at first they are good for about 2-5A draw and they are the most volatile they have been known to propel flashlights around the room like a rocket propelled on highly toxic gas that even a little bit can damage your lungs permanently.
Fix those 2 issues you should see about 110 FPS and around 70-90ft ranges. Some sort of voltage monitor would be advised to add to the setup with anything rechargeable draining them past a point will damage them.
not really for motor braking it is connecting the positive and negative side of the motors the diode is the actual thing you want though as it serves the same purpose and is actually something your supposed to do with dc motors or inductors...
So for the later part of the past few months I have been working on a Stryfe Falcon 130 build. I want to add some sort of braking to the motors so when I let go of the rev trigger the motors stop almost immediately. I have seen videos of finished projects of this type but no diagrams on how the circuit is set up. I know I need to run a wire from the motors to the switch but am un sure if it's off of the positive or negative wire and to what terminal on the switch (I think it's to the Normally closed terminal (also what terminal is that, my wiring loom is coming to me prebuilt from http://www.blasterte...3_13607495.aspx)). If someone could help me out in pointing me in a direction as to a diagram or better yet pictures, I'd be more than appreciated. If it helps any I plan on running this blaster off of a 3S Lipo (not sure if it makes any difference)
You should put a diode across the terminals of the motor this will stop them from generating power and feeding it back into the circuit as they spin down. Add the diode pointing towards the positive on both motors this is the safest method and costs very little i think 2 diodes can be had for like 10 cents...
Or you can take the jam door switch and put it as the new rev switch the second and 3rd pin 2 pins will be the on off for the rev circuit and the 1st pin connected to the negative on the battery tray is the brake...
http://www.mouser.co...fX4nEEHllp3mZcc .18 cents each you need 2
It is a known fact that "fire" batteries can vary from 500mA up to 4A discharge current and most fall in the 2-3A range unless they are cheap low quality cells. The stock motors are made to do with 500mA at best with 4 AA batteries. By giving them a proper power source they can scream to their hearts content. IMR or LI-MN cells discharge 10A-35A burst and should be the only drop in choice anyone considers. Lipo packs like most suggest are expensive but they are far better than any others you can pickup ones that can do 50-100A burst discharge.
It's not opinion. Battery ratings aren't user based. Google 'Trustfire explosion,' or similar.
Also trust fire and ultra fire are very commonly counterfeited look up counterfeit ultrafire dissection. There are 3 ways they are faked the worst is when they put a 30 mAh foil pack inside an 18650 can and fill the rest with sand or flour or plaster dust so the weight is close enough. There are just cheap cells not made very well these are the fire balls waiting to happen. Then there are 900mA cells labeled 3800mAh.
I would pull cells from laptop batteries before i bought a fire brand. For 14500 cells aw or efest imr are better than any fire and they can do decent amps.
I would not there is a rather steep curve upward on noise from these motors. I would run on 2 or 3 but personally i run 2 and keep 2 charged for when the first 2 are exhausted.
I have recently bought IMR Batteries and have only put about 30 rounds through my Stryfe before the Thermistor shut down my blaster. I will rewire my Stryfe over the weekend, but I was wondering: Is it safe to run a Stryfe on four IMRs for long term usage? I'm using the stock motors. Thanks!
If you need a battery blank i made my own using a sheet of paper and a solid core wire down the center with a coil on either end. I simply rolled a piece of paper around a wire until it was as thick as a AA then put glue on either end then stripped the wire ends and coiled them to form terminals... i have 2 one that is 2 AA end to end long one that is a single AA long removes and sits just as a battery would.
no they have a discharge of 3-5A but it is a cheaper reliable source of quality cells vs spinning the wheel on a *fire brand battery if you're after 18650 size. 14500 you need to spin the wheel and you should not run any cell other than imr or li-fe. Normal unprotected Li-ion are asking for bad things.
Lithium batteries from a laptop are not high discharge, though. Just FYI.
Just be sure to not get the soft package ones and treat them with respect... Sure they are safer but if they get punctured or you exceed the current draw they can violently vent or puff... Nothing good ever spits out of a battery when they vent... I have also read about someone who charged their *fire battery properly they put it in a drawer for use later nothing shorting it or anything he came into his shop after hearing a pop and it was the battery having vented...
Whoa. I just watched a video of a trustfire explosion and it was insane! Apparently those things can explode even when not in use and are just being stored! I am never buying those things in my life. I am going to have to stick to lipo's forever.
Li-ion quality cellsLi-ion
Cheap Chinese Li-ion *FIRE brandsBoom and Fake
In mods with STOCK wiring and motors a good set of IMR or LiMn batteries is fine the stock motors wont draw over 10A.
In mods with Alternate high voltage motors LiPo, LiFe or NiMH packs. You can use these with stock motors but thermal fuses must in most cases be removed.
In mods with alternate low voltage motors A 1s LiPo LiFe or NiMH or AA NiMH are the choice you need to keep in mind most of these motors are 3v they can be over volted a bit to 4.5 or maybe 6v at most...
also any battery that gets abused can explode including alkaline...
If that is the one thing you remove from the internals i highly suggest it. It is just a mechanical lock that gets in the way more than it helps honestly i would pull all the mechanical locks and trim the top of the rev trigger so the dart trigger does not hit it rather than trimming the dart trigger like most guides suggest.
Yes, you are correct.
Also what are the run times like for that battery pack?
My next mod is going to be the addition of a volt meter inside my stryfe when i do ill get pictures of my rewire with solid core 18 gauge it was interesting to work with. I may or may not swap the stock rev switch to a 10A switch. and i may or may not use the jam door switch to turn off and on the volt meter i also thought about placing the volt meter where you have your battery so when i check the voltage i flip it up get the reading close it turns off the meter. I tested it and when placed against the plastic you can read the numbers through the plastic so it can be super stealth.
The shots per charge was not calculated in a very accurate way it doesn't take into account that as the battery drops it drops quicker the lower it gets. Also the 35C constant 75C burst is 300mA * 35 and 300*75 for 10.5 amp constant and 22.5 amp burst this kinda puts it down to imr range.
I call bullshit on those shots-per-charge calculations. 300mAh is a tiny battery. Stock motors have winding impedances of something like 12-15 ohms, right? Even if we give them a relatively conservative number like 20 ohms, they'll still be pulling about 300-350mA at 7.4V. That gives them less than an hour of operation under ideal conditions. So I don't buy it.
For those that did not know C rating is a measure of how much current can be discharged it represents the capacity of the battery array * rating C = amps possible. So if you have a battery that is 300mA with 25c constant it can deliver 10.5 amps constantly.
I think unless your running non stock motors that pull 20 or more amps you dont really need to run these lipo packs you can do IMR. Are they ideal? No, but the good chargers for them can do other chemistry too. I use a nitecore d4 to charge mine it does NiMH, Li-ion, Li-Mn, Li-Fepo4 and Nicd and it has a 12v input so i could use my car accessory plug to charge them.
my stryfe is running on a pair of these they are ~14c
efest v2 IMR 14500 3.7v High Discharge
Maximum Continuous Discharge Rate: 9.75A
Maximum Continuous Charging Rate: 1.3A
Rated Capacity: 700mAh
Good tips, thank you. I like these ideas.
I have not formally monitored the battery life. However, I have fired about 200 darts through my Stryfe with the Turnigy Lipo and it's dropped from 4.16v/cell to 3.96v/cell, which linearly extrapolates to 860 darts before the Turnigy Lipo needs to be swapped out (low voltage alarm is set to go off at 3.3v/cell.
Start/End Voltage: 4.16/3.96 = 0.2v used
Darts Fired: 200
4.16v-3.3v = .86v/.001 = 860 dart battery life (SD +/-80)
Dang, I like the idea of a digital voltage meter. I could probably trim out a window on starboard side and rig my digital voltage meter/alarm for viewing. I like your top side idea better though, more functional.
Those are the ones i got. Like i said no cutting needed the plastic of the nerf gun lets enough light through that you can just glue it to the inside and it shows through. In the stryfe on either side of the magazine area the meter is thin enough that it doesn't interfere. I'm also thinking near the back on the left half of the shell it should not interfere with the trigger but ill have to decide when i get around to putting it in where exactly it will end up.
the only nimh packs that can are ones like this http://www.summitrac...r3S6xoCpvTw_wcB
Does anyone here know what nimh aa's can discharge high enough for 180's?
but yes i should have clarified that i was talking about dropping the 180 in favor of motors that run well at stock voltages and used normal batteries or standard rechargeables. But honestly if the kid is as dumb as the op is making him out to be then he should not be handling the gun in the first place he will likely put his own eye out or mangle a finger.
those are li-ion the ones that are typically dangerous it also states the actual capacity is 1700mAh I would not be shocked if the 30A rating is the burst draw and the sustained is much lower.
I just came across these: http://m.dx.com/p/us...ry-green-360333 and they seem to be too good to be true for the price.
no they are better but not high discharge like you need those are 1C so 400 mA.
has anyone tried something like these http://www.amazon.co...s/dp/B0057QCGRM
and if so are they the same thing as like trustfires?
these would be better http://www.amazon.co...rds=efest 14500 and do close to 10A discharge if you can jump 1 more size up to 18650 purple efests can do 30A
we are talking a stryfe and 18650 size cells personally speaking there is only so much bulk i would want hanging on the outside and 2 18650 is about my limit for pistol config but i suppose 2 on either side of the mag would fit too.
Then again, you could always run more if you mount externally.
they would be running close to stock voltage with 2 of them within margin of error on a alkaleak/lithium primary assuming 1.6v on all 4... without a motor swap it likely would not net you much of a gain.
That is just about perfect except it might be too big to fit in a stryfe. Anything LiFePo4 is much safer than *fires. *fires are absolute sh1t.
where as a li-mn cell almost as safe as lifepo4 and 7.4-8.4v with 2 of them for 1.4-2.4v over volt on most motors.
Yea I do not want IMRs, I was just wondering if those would work. Maby I can find a better one.
li-ion are the dangerous ones and are what most trustfires are.
li-mn are imr and are safe
Lifepo4 safest most durable chemistry...
Li-ion and li-mn are charged in the same charger and my charger the nitecore D4 has an option to charge lifepo4
those are li-ions that vent
Because they can vent and this is for a commission for a 12 year-old.
imr get hot that is it.
if you really need it to be drooling idiot proof drop the 180s get some plasma dash or tamyias and stick NiMh or alkalines
i doubt that pack has more than a 5A discharge. The wires are so thin...
What store might have NIMH packs?
I think this same battery is available in radioshack.
(sorry about the quote backspaced too far.
When higher than normal current is drawn the protection shuts down the cell that cell that is not taking a charge either got discharged below or tripped the circuit. If you must go up to at least imr batteries they will be better off than the ultrafires which i would dispose of at this point or store them in a fire proof box. It sounds like the op over discharged them.
The protection PCB should keep them safe. That's kind of the entire reason it's there.
That said, ultrafires are very unfit for this purpose. A brief google search fails to find their official safe discharge rate. Similar li-ion cells are rated to about 1-2C, which means these can really only deliver about 1A continuous. Those motors ask for 2.8-3.8A at 2.4-3.0V. You're feeding them 11.1V, so they're actually probably drawing somewhere in the ballpark of 10A or more at times. This is for one motor, you're driving two, so double that. 20A is something that even unprotected ultrafire 14500s will never, ever be able to do unless you run something like 10 or 15 of them in parallel.
Ultrafires and their cousin trustfires have their place, but driving motors is not it. Feeding 11.1V to motors rated for 3 is not a good place to be either. Sure, the Tamiyas might be able to handle it, but I'd be very careful. What you really should do is get a 1S (lithium) or 3cell (nickel) battery pack that can deliver enough current.
So back to the beginning question. Are your batteries safe? I'd say probably, but you're abusing the hell out of them, and I'm really not sure how the protection PCB will react.
The best option would be a lipo 1s with the highest amperage he could find. Next a single purple efest 18650 30A. after that efest v2 14500 if possible 2 in parallel i have been toying with the idea of reworking my stryfe's battery box to have 2p2s efest 14500 v2 also i would recommend a voltage monitor addition to prevent over discharge in the future.
sounds like dart wear you might want to check the foam pad on the plunger if it is damaged or worn that is the seal that hits the cylinder and makes the seal to fire the dart. that spring might be weak or broken.
I found out that its never the same barrel that doesnt shoot as far. Sometimes the gun fired 6/6 nicely, other times its a 5/6, and other times its a low 3/6 or 2/6. Any way i can avoid this?
A. It will be equal to running 2 ultrafires
2. If I run a 3s 20c LiPo, is it necessary to change my rev switch into a high current micro switch?
A. Maybe the original switches are rated much lower they will eventually burn out and don't pass as much current but stock motors on 3s you can skip the switch upgrade for now you should think hard about doing it eventually.
3. If I run a 500mAh pack and I'm playing for 5 hours, do I need to bring 2 packs? (don't want to cut shell)
A. depends on motors and play style how heavy handed you are on the rev switch. From what i have found 800-1000 is the biggest that fits in a stryfe with a little bit of modding as in removing dividers and support ribs on the battery door
4. Can anybody give me a link for tutorials on how to charge LiPos using a smart charger? (maybe an IMAX B6 Balance Charger?)
A. Google youtube then "how to use imax b6. first result
5. My LiPo has a JST discharge plug and a JST-XH balance plug, if I want to plug both into my Stryfe or my balance charger, what terminals should I use for the Stryfe and the charger? (Male/Female)
A. The stryfe wont have anything you will need to install something to plug into the balance port and the discharge the jst is what you will plug into the stryfe you will need something like this
6.Do stock motors spin fast on a 2s LiPo? (Related to Question 1)
A. I find they do fine on 2 IMR which would be like a 2s 700mAH 10c
7. How do I solder a Female JST plug to my wire to plug LiPos in? (if you have a link, it's fine)
http://www.amazon.co... plug connector
it should be pretty self explanatory you run the two wires into the guts of the stryfe and where the 2 wires connect to the battery tray you connect the jst
google and search will both give you numerous how to on modding the stryfe most commonly a rewire mod first result on google search https://www.youtube.com/watch?v=o4AR9fvwlYw ONLY thing i have to say about the video is those "resistors" are not resistors they are Transistors they drop voltage and increase amperage but are not needed.
odd how all of your questions are not yes or no...
another useful bit of knowledge is here is a listing of max acceptable amperage for a given wire size we would be looking at both chassis is more short bursts and what we would use primarily but for longer use the transmission is important too as at a given amperage the wire will heat up and eventually melt
AWG max Amp chassis max Amp power transmission 10 55 15 11 47 12 12 41 9.3 13 35 7.4 14 32 5.9 15 28 4.7 16 22 3.7 17 19 2.9 18 16 2.3 19 14 1.8 20 11 1.5
Well there are two locks involved one in-front of the trigger next to the mag lock and one on the bolt sled itself i removed both from mine and i have no issues you can tell if you are primed by the feel of the trigger too it will feel heavier than non primed with no locks...
alright thanks for that.
the plunger tube may be in upside down that is really the only way the lock on the bolt sled can malfunction
What i would do is grease it up to see if it helps if it solves the issue great if not i would say that you removed too much dead space you could trim down the hot glue slowly until the issue gets fixed.
Just remember that without the AR dry fires are not recommended they will break parts.
look through the jam door at the wheels make sure both flywheels can spin freely. Like others have already said both motors rev to a nerf set speed then when you pull the other trigger they go full speed if only one of your wheels was spinning it would sound very quiet with only 1 harmonic frequency rather than a duet.
I think it revved one motor, but the other one doesn't want to rev. I don't have a recorder, but it sounds like a whine, but after a few seconds, it gets into a deeper hum. Without pulling the firing trigger. I think one motor has a bad connector, or is jammed.
If you are handy and know your way around a soldering iron then you could just mod it.
yes but not as well as a lipo pack the 180s tend to pull a bit more stall amps than IMR provide the stock motors are not so bad with 2 IMR i tossed 2 IMR 18650 in my battery tray the gun is a whole new beast and the balance it toward the center rather than forward. Mind you mine is stock.
So would those motors work with IMRs or trust fires?
There are a lot of threads on motors it uses the same motors as the stryfe ANY 130 size will fit in the stock spot the pusher motor can be replaced with out modding the shell with a 180 you need to mod the pusher tray. Honestly i want to put a brushless set in mine Mainly due to liking the start up sound some make just think you are getting ready and it is time to start so you flip the master on deet deet doo deet then those motor sounds...
My stryfe shoots 50-70ft flat with 2 imr and full rewire. With that many AA you might as well jump to imr you will go through that many AA while playing.
If I were you, I would boost the number of AA's to 8. This will lead to 12 volts, and a fair amount of current. From my experience, stryfe motors can handle a pretty decent amount of current, but totally fry if you get higher than 16 volts running through them.
Also, I would coat the flywheels in something. What I do is wrap them tightly in electrical tape in direction that the flywheels spin. After the wrap, I use a hair dryer on the highest setting to warm up the electrical tape. It is crucial that the tape is wrapped in a way that when the flywheels spin, the seam that the tape makes is not able to be peeled back.
Umm no alkaline can not provide more current than imr.
Did you even see what he said? Imr's cost 14 euro's where he lives for just a pack of 2. Then you also have to add a special charger to that.
I recommended 8 AA's because they are cheap and accessible. In Addition, the current from 8 AA"s is greater than 2 Imr's, which will lead to greater performance and less damage to the motors.
Alkaline can at most do 3 amps but most can only do 2.5A and they last 40 minutes tops so piss through those batteries like water and how long does it take to burn 14 euro in alkaline.
NiMh can do 5 amp discharges and last for 2.1 Ah so at 2 amp discharge you get maybe an hour.
IMR 10-60A depends on grade and size of cell most 14500 do 10A.
Now 8 AA in series is 12v the stock motors were rated for 6v we over volt them at a cost to life at a given voltage the stall current increases. It does not matter if it is an imr or if it is alkaline 12v will kill those motors just as well from either source.
charger does li-mn, NiMh, LiFE, li-ion, NiCD
the links i gave were for amazon in germany... 9.90 euro for a pair of imr you only really need 2 and a bypass for the other 2 cells you can run 3 safely 4 will burn out the motors.
Thanks for your very detailed feedback. Luckily I had a soldering iron and already took out all the junk from the inside of the blaster. Unfortunately your ebay seller doesn't ship to Germany I,ll try to solder the battery holder in place and feed the wires through the back of the stock mount, so that I'm able to close the original battery holder again. I will also mount the new battery holder with something more durable. I don't play that often (2-4 hours a week) so the alkalines should last relatively long. In fact 4 of the 6 batteries that I'm currently using are still the ones that I put in when I bought the blaster about 4 months ago, so they should still be cheaper and if I really need to I can still swap them for IMRs.
Have a good day!
and the same charger for li-ions works with imr.
I am going to eventually open my RS and when i do I may add another method of transferring power from tray to gun im thinking of mounting a xt60 connector to the occupied side of the gun so i could open it without cutting the negative terminal again... If i ever do make this modification ill make my own thread on how i did it.