The headphone hole is way too small for some of my headphones to fully fit. Thinking of just cutting the top but wondering if anyone else has had any luck doing this ..
I would use a wood carving or linoleum cutting tool. Drill bit would be way too messy on a semi-flexible material.
I think it makes more sense just to shave the tip of the headphones plug... That is what I did with both of my bose headsets...
When you get a bumper, you will see why you want to do it the otherway around. Trimming the dock connector plastic with a grinding bit v trying to cut out the bumper.
The most simple solution for a clean, controlled enlargement of the hole is to create a punch from tubular steel. You would need to sharpen the end of the punch (the sharper the better). Then you will need to support the bumper directly under the hole using a block of wood. This should be sitting on concrete, or a very solid floor. Position the punch concentric to the existing hole, then whack it with a hammer. The best result will come from one firm hit with the hammer, not multiple attempts. If you don't have access to a suitably sized steel tube, you may find some other utensil or thing laying around the house - for example, somebody's good pen. Also note that it's possible that the hole will end up a slightly smaller diameter than the tubular punch, so you may want to compensate for this Actually - I don't own a bumper myself, nor have I seen one in person, so I don't know how hard the plastic/rubber is. You will have to use your judgement whether the above method is suitable (if the material is too hard if may result in cracking or splitting). Good luck.
I already carved out both my Monoprice usb cable and battery pack using a knife. I thought about carving it out the bottom opening on the bumper, but I said screw that. Seems much harder to do if you want to maintain the clean and original look.
Holy crap - I am completely lost here! Lol. As you can tell, I know absolutely nothing about tools and you guys are speaking another language. I'm going to need a tutorial or something for this.
I'll probably be dremeling the hole and also the connector dock on the bottom for my car stereo shortly. I'll have some pics for you guys next week.
actually a chucking reamer works well. it is made to enlarge holes in metal and works very well. it is not grabby like a drill bit would be.