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Logitech G502 weight reduction mod/review 102g

post #1 of 14
Thread Starter 
Hi,

I really wanted to get the weight of my G502 down as I'm a low sensitivity FPS gamer, but I also play MOBA and other games where I find the extra buttons on a mouse very helpful. I hate the trend of "FPS" mice having very few extra buttons as standard. The same with optical sensor mice, there are very few high performance optical mice with extra buttons. Coming from the G400 the G502 was the perfect mouse for me, except the weight. I thought I'd try a few other mice that meet some of my requirements, but I haven't found anything that can match it's sensor and build quality, and ease of use of the buttons.

Mice I tried:

Corsair Sabre (Very unbalanced, very wide, Lift off distance issue)
Corsair M65 (Too heavy, sensor performance seemed very good, slightly weird shape but not that big of a deal)
G402 (Terrible cheap feeling buttons, lift off distance issue, hard to use when there is a G502 next to it)
G303 (Sensor rattle of course - bad and moves a lot with tape trick, OK shape for me, very few buttons, it's light... Sensor feels EXACTLY the same as 502 - which makes sense, the implementation is good on both)


The extra buttons on the G502 seem very high quality and feel so much better than the G402. The G402 buttons seem cheap in comparison and with the LOD issues and the differences I can feel in the sensor, the weight savings were not worth the downsides.


Tools used:
Hack saw
Sugru
Screw driver
Exacto knife
Drill
Chainsaw

Mods done:

  • I cut the metal piece of the scroll wheel in two places with a hack saw, being careful not to cut the plastic part. It is easily removed from plastic core after cutting. I rolled a piece of sugru to the approximate thickness of the metal wheel part and cut it to length for around the wheel core. Very easy to do. Dried 48hrs. (it's about as grippy as cheap office scroll wheels [which I like] but if you want more grip, notch the sugru or rough it before letting it dry - can also do this after drying by cutting notches). The wheel feels great, smooth, and light to me.
  • Cut off the "wing". (removed the weight door completely. With the weights out and the mods I made the mouse does not tilt sideways at all. The mouse is very well balanced. I think the wing and foot were only there to accommodate the style and weights.
  • Removed the free scroll button
  • Removed the magnet in the body.
  • Cut some of the front plastic "flair" off the front (Have to be careful with this as there is an attachment point that holds the body together)
  • Cut most of the rubber off the right side grip (it wasn't comfortably anyway. I left some initially and carved it into a pinky ledge for lifting the mouse, but ended up removing it all in the end as the surface under the rubber is surprisingly comfortable and grippy plastic)
  • Cut out the weight compartment

The mouse is noticeably lighter and more usable for me. It's perfectly balanced (holding it loosely in the middle and lifting it up it doesn't fall one way or the other). I retained all the buttons. Overall very happy with it. There are more things I could do to reduce the weight and might try, but this mod doesn't change the overall functionality, look or feel of the mouse (unlike removing the back top plate).
Cutting down the rubber, which was surprisingly thick, has improved my grip on the mouse and the feel, as I seem to prefer more narrow mice. Might plastidip it.

Photos attached (ignore the slapped on mouse feet, though it was weighed with those feet on (1mm thick I think) and the extra rubber on the side, so it may be a little lighter since I took the photos.

I was a little lazy while doing this and didn't remove the PCB, so I damaged the ribbon cable to the sensor, but a friend lent me his mouse so I could try it out to make sure I didn't break it.

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Edited by strat6 - 7/22/16 at 1:06pm
post #2 of 14
With careful use of a heatgun you can remove the rubber from the side grips and weight tray easily, and if you're keeping the palm plate there's a sizeable chunk of plastic underneath you can get rid of. Got mine under 80g but your scroll wheel solution is pretty elegant looking, I just replaced it with a spare from another mouse. Also look into replacing the cable, a thin rubber one would save a few grams from the thicker braided section still inside the shell.

Neat job thumb.gif Mine looks horrid because of how far I went with the weight reduction.
post #3 of 14
Man despite having a cool mod. you zombified that mouse lol. just get another mouse. there are tons of mice with the shapes and weights you would love.. smile.gif.. for the fun of it.. it's nice.. but man it's not worth the hassle biggrin.gif
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BEAST
(26 items)
 
The Wifey's Rig
(14 items)
 
The Black Pearl
(25 items)
 
CPUMotherboardGraphicsGraphics
intel i7 3770K Gigabyte Z77 UD3R Sapphire Radeon r9 290x Sapphire Radeon r9 290x 
RAMHard DriveHard DriveHard Drive
Corsair Vengeance 8GB seagate barracuda 7200 RPM 1 TB PNY 120GB SSD PNY 240GB SSD 
CoolingCoolingCoolingCooling
ek supermacy full nickel Mayhem Pastel white  Mayhem blue non stain dye ek FC r9 290x 
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ek fc r9 290x  swiftech mcp655 Koolance COV-RP450  EK-CoolStream RAD XT 240mm 
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post #4 of 14
Thread Starter 
I think it was yours I was looking at that had the back plate removed dlano! Ha! you inspired me to do this, so thank you! Great advice about the heatgun... it was less than elegant removing it with an exacto knife. I'll definitely look into removing that plastic piece you mention.

The cable is the most noticeable weight now that the mouse is approaching light. I was considering removing the braid, I'm pretty unsure if I have the confidence to replace it altogether but I'll look into it. The cable definitely makes it feel like a heavier mouse atm.
post #5 of 14
Thread Starter 
Quote:
Originally Posted by Ramzinho View Post

Man despite having a cool mod. you zombified that mouse lol. just get another mouse. there are tons of mice with the shapes and weights you would love.. smile.gif.. for the fun of it.. it's nice.. but man it's not worth the hassle biggrin.gif

I thought the same thing until I started trying the other mice. One of my main criteria is having the extra buttons, along with a great optical sensor without crazy high lift off (and obviously weight). I can't really think of any other mice whith such quality, accessible buttons as the 502. Most "extra button" mice are laser, which is a no for me. (see my list of tried mice above)

As far as "zombifying" it still looks pretty great (look at pics of dlano's if you want to see a Frankenstein haha). I don't flip it over ever, and any slight visual issues can be solved with some electrical tape and plastidip. It honsetly feels amazing in my hand, comfortable for hours on end, great in FPS and MOBA alike. What more could I ask for? I've got a custom mouse made for me smile.gif
post #6 of 14
Thread Starter 
If the Tyon or the new Gigabyte Auros mouse had an optical they would be what I'm looking for, but would still probably have to weight mod them.
post #7 of 14
There's some more plastic you could remove inside to get it under 100g. Basically the M1/M2/middle buttons have more plastic than they need, you can hack off the ends after a certain point. There were pictures posted here a long time ago showing where to do so but you might be able to figure it out on your own. It'd only be a few grams but there's something nice about having a 9 in front of the weight instead of 10. smile.gif
post #8 of 14
Thread Starter 
Quote:
Originally Posted by a_ak57 View Post

There's some more plastic you could remove inside to get it under 100g. Basically the M1/M2/middle buttons have more plastic than they need, you can hack off the ends after a certain point. There were pictures posted here a long time ago showing where to do so but you might be able to figure it out on your own. It'd only be a few grams but there's something nice about having a 9 in front of the weight instead of 10. smile.gif

I know the part you are talking about but was worried about longevity if I removed it. I really wanted to weigh it again to see if I could get it to 99.99g after I did a little bit more modding. Then I could claim it was under 100g biggrin.gif
post #9 of 14
Quote:
Originally Posted by a_ak57 View Post

There's some more plastic you could remove inside to get it under 100g. Basically the M1/M2/middle buttons have more plastic than they need, you can hack off the ends after a certain point. There were pictures posted here a long time ago showing where to do so but you might be able to figure it out on your own. It'd only be a few grams but there's something nice about having a 9 in front of the weight instead of 10. smile.gif
I wouldn't recommend doing that, I did and it results in some side to side movement and screws up the nice feel of the buttons.

I fixed it somewhat with tape over the screw posts so when you put the button section in place it makes a more snug fit, glue is an option too but either way on my second shell I kept them as they were. A couple grams for good click feel is worth it.
post #10 of 14
Thread Starter 
As far as replacing feet go the Logitech site is pretty expensive and I wasn't a fan of them anyway. Looks like my choices are hyperglides or hotlines. I seem to prefer thicker feet. Anyone recommend one over the other?
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