Cordless corded tools?

I just converted a Dremel 10.8 V rotary tool to use Bosch 10.8 V
batteries. I always have the rotary tool immediately in front of
me, so the battery will either be worn on a neck strap or be set
down near the work. The wires coming from the rotary tool plug
into the battery, using a socket taken from another Bosch tool.
That was done because the rotary tool battery charger sucks.
Apparently the charger destroyed one of my two battery packs.
Also, I have lots of Bosch 10.8 V MAX batteries.
Preliminarily speaking, having the battery connected through a
wire to the tool is working great. It's a cutoff tool, so maybe
the fact that it is ultra light without an integrated battery is
the reason. Or maybe it's just infatuation, wouldn't be the first
time. The battery pack can be worn around my neck, hung from a
utility belt, or set on a table (the way I'm doing it now).
I suppose eventually battery technology will be light enough that
we will reach the point of diminishing returns for lightness, but
that hasn't happened yet.
Reply to
John Doe
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7.2 volt drills, run on 12 volts, work great for drilling nominal 1/8" holes for rivets in aluminum. Several friends have built entire Zenith (zenair) 701 planes with them.
Reply to
clare
I've an old Ryobi 12 volt drill that I was thinking of wiring up to a
cigarette lighter plug for use on the boat.
Run off the house battery.
But removing the batteries doesn't always improve tool balance...
Reply to
Richard
Removing the battery pack and (instead) connecting it through a short wire improves the balance of my rotary tool.
They could probably make an extremely compact and lightweight lithium-ion battery powered rotary tool that would function better than a flexshaft, that way.
Reply to
John Doe
I too, have a rotary tool always next to me, actually 3. Dremel does make a Li-Ion battery model ... that's my #3 unit. Actually, it is usually my number one go to unit. Its battery and charger seems to be ok. I only have 1 battery and have had it for many years. It's probably close to needing replacement. This battery unit does, however, lack the power a regular AC Dremel possesses. Maybe a new battery would improve it. The 2 other units I have, which are always on the bench, is a variable speed AC dremel and a Ryobi. When Dremel built this AC model, they built pure junk. This model has the variable speed slide lever. The tool itself is our of balance so that at high speeds it vibrates. It vibrate so bad that the speed lever will move on its own. However, I still use it. The Ryobi speed is only 20K max, but has much more torque than the other 2.
Reply to
Art Todesco
If you have other 10.8 V battery tools (like Bosch 12 V MAX), and a socket that can be taken from the same type of tool, you can convert your rotary tool into an ultra light weight cutoff tool. And likely you will be improving the battery performance at the same time. I took the connector/socket out of a Bosch 12 V MAX flashlight, connected a 2 foot wire to it, and soldered the wires into the rotary tool. I'm going to buy some cheap connectors in addition to that, so that I can use the same (expensive) tool/battery connector to connect the same type battery to another device. For example... For using the bright end of the hacked Bosch flashlight on my skating helmet.
Might be a good time to move away from the cheap charger that comes with 8000 series Dremel tools. The only difficulty is finding a spare connector for the battery.
Reply to
John Doe
If removing the battery hurts the ballance, fill the battery area with Bondo - and lead shot if required.
Reply to
clare
Like they did with TMT's head?
Reply to
Michael A. Terrell
You are a waste of space.
Reply to
John Doe
And speaking of a waste of space...
Too bad you cannot at least keep your garbage in all of your off-topic threads, instead of letting it seep into everything around you.
Reply to
John Doe
You might want to consider adding snubbers or clamps to the switch and harness, at the motor. The harness may also radiate.
RL
Reply to
legg
RADIATE? If you are worried about AM radio interference throw a ferrite torroid on the cord at the rool end. If your worried about something else, don't be - because it is NOT a problem.
Reply to
clare
That would depend on the control circuitry and motor combination used by the tool, and the voltage of the substitute battery used. There can be considerable di/dt, normally handled by the local battery's placement. Stick the battery at the end of a cable, you'll get more than just DC cable losses - there will be voltage spikes at the load, voltage ripple on the controller supply, and rdiation from the interconnection.
I'm not worried. It's not my tool, but you don't paint just one side of a fence.
It IS becoming increasingly difficult to get clean and stable FM broadcast reception - never mind AM - particularly from smaller or distant stations.
I expect there are similar problems over the rest of the spectrum - with effects not so easily identifiable by the victim. The perpetrator is, inevitably, ignorant of them.
RL
Reply to
legg
12 to 24 volt battery operated tools do not "broadcast" very far - either from the brushes or the PWM controllers.
Cheap Chinese line operated power tools are another story altogether.
Reply to
clare

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