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kokomokid
08-01-2020, 08:32 PM
Where have all the electric powder tricklers gone? I was searching for a factory trickler (Omega,Dandy or Targetmaster). These were all the rage five or so years ago but I did not find one with any reloading suppliers.

nhyrum
08-01-2020, 08:43 PM
If I'm understanding your question right, it's because "all in one" electronic scales and throwers are now the standard, with the rcbs chargemaster leading the pack. Essentially, things have gotten digital, faster, and more accurate (I guess that depends on who you ask.) But I can guarantee you, given everything else the same, my a&d balance WILL be faster and more precise than, say, the scale in the rcbs unit, but at a greater cost.

Basically, you just push a button, and machines poop out whatever you told it to. Much more boring.

Sent from my SM-G975U using Tapatalk

15meter
08-01-2020, 09:47 PM
Working on building my own, there are low speed tiny gear motors out there for not much money.

I ordered one during the great house arrest. Unfortunately the house arrest end and shooting, boating and motorcycling weather coincided and the powered powder trickler was back-burnered.

I'll get back to it when the snow flies again. If and when I get it working I'll post pictures and description.

The plan is to direct drive an RCBS trickler with the gear motor actuated with a momentary switch.

Do a search for 60 rpm gear motor and you'll see the size I'm going to use. They are available in both AC and DC. Mine is a 12v DC and the plan is to use the charger from the motorcycle.

Hopefully it will be a simple and inexpensive majic widget.

nhyrum
08-01-2020, 10:03 PM
Not trying to derail the original thread, but wouldn't a direct drive transmit the motor vibrations to the scale, causing possible inaccuracies?

Sent from my SM-G975U using Tapatalk

cwtebay
08-02-2020, 02:56 AM
Not trying to derail the original thread, but wouldn't a direct drive transmit the motor vibrations to the scale, causing possible inaccuracies?

Sent from my SM-G975U using TapatalkI bought a chargemaster several years ago at a gun show - your assumption was spot on with my experience.

Sent from my Pixel 3 XL using Tapatalk

15meter
08-02-2020, 06:28 AM
Not trying to derail the original thread, but wouldn't a direct drive transmit the motor vibrations to the scale, causing possible inaccuracies?

Sent from my SM-G975U using Tapatalk

Possibly, but I doubt it will transmit any more than my ham-fisted turning the knob on the trickler.

It will not be connected to the scale in anyway. Just sitting behind with the tube extending over the pan.

May have to include a rubber mat or feet in the design. That's easy enough at this stage. I even have some stick on rubber feet from another project. I remember having extras, just can't recall what I did with them.

kokomokid
08-02-2020, 11:59 AM
Working on building my own, there are low speed tiny gear motors out there for not much money.

I ordered one during the great house arrest. Unfortunately the house arrest end and shooting, boating and motorcycling weather coincided and the powered powder trickler was back-burnered.

I'll get back to it when the snow flies again. If and when I get it working I'll post pictures and description.

The plan is to direct drive an RCBS trickler with the gear motor actuated with a momentary switch.

Do a search for 60 rpm gear motor and you'll see the size I'm going to use. They are available in both AC and DC. Mine is a 12v DC and the plan is to use the charger from the motorcycle.

Hopefully it will be a simple and inexpensive majic widget.

If you are going to spend the winter working on a trickler how about a one kernel drop plate like the Prometheus or one like Jimmie Todd makes that a retiree can afford?

jmorris
08-02-2020, 02:58 PM
I like my charge masters for what they are but they are not the end all in precision. I really don’t like the auto zero “feature” that hides the fact they drift with temperature.


https://www.youtube.com/watch?v=JmxBSOOL7Ks&t=26s

jmorris
08-02-2020, 02:59 PM
My homemade auto tricklers have a higher resolution and greater repeatability.


https://www.youtube.com/watch?v=6GYWgAdKzHs&t=78s

That is two hundredths of a grain, the CM 1500 just can’t do that, even on a good day.

jmorris
08-02-2020, 03:00 PM
Also not very difficult to put together if someone is remotely “handy”.


https://www.youtube.com/watch?v=UxPenA7c0hE&t=4s

And for a fraction of the cost. If you have a scale and measure, the rest can be shipped to you from eBay for <$40.

The photo electric switch is the most expensive part, at almost $19.

https://www.ebay.com/itm/New-OMRON-E3S-GS30E4-Diffuse-Groove-Shaped-Photoelectric-Switch-Sensor/153262672272?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2649

Less than $5 in the gear motor shipped.

https://www.ebay.com/itm/DC-3V-12V-3-30RPM-Brushed-Slow-Speed-Reduction-Mini-Worm-Electric-Gear-Box-Motor/132763825643?hash=item1ee95735eb:g:ZAcAAOSwdudbiJp C

$7 for the relay and socket to your door.

https://www.ebay.com/itm/Relay-Omron-LY2-12V-DC-10A-240VAC-28VDC-with-Socket-base-1pc/271629115467?hash=item3f3e5b604b:g:i-kAAOSwrmdTqNyE

$5 for a power supply.

https://www.ebay.com/itm/AC-DC-12V-2A-24W-POWER-SUPPLY-ADAPTER-CHARGER-FOR-CAMERA-CCTV-LED-STRIP-LIGHT/372688950188?hash=item56c5fe13ac&var&_trkparms=ispr%3D1&enc=AQAFAAADUHToWnaHZyFfHNGZ3ElTXFyG6jknqVdQ2m3CqA URPCajs16m2d%2F3puGdldQLiBnMRcNlh5BPsUSE4Vbnnx6sYj iKlGqJE9zwNVmWUik5eBWyWdAgMl9n5jdXbL3AQF2hRgzCSpxv Bbdo%2FGgFqiFRMZiEElIf%2B%2BjIwL%2Fcq%2FGkoDJ%2FoH sGA%2BFd4L3FEpkqtVYn3FUN00QQ%2FOK8odmHpuMIJcTVce2A AbEyPAFrp8JLrCY0Z0f8OQK%2FR2J%2BucoybK1IFTgwGUmt43 xD%2FPd%2BR19Rm3EuyLUsDLTeLLPvevzQbg4zGWFwFQKjv%2F 6kBVgPos86bm1fGXnRIu77uic4E93QYxxHH8ztTa8jMWx4AazT 9DHuky6AlHPOAi1oE7cL4W%2B%2Brs3CkjZKsjGg0FG9hjG%2B yOXi8Ov%2FlYgh6QdpE104VD%2FYHopjEGt4sCbYzYjpuu10Kd TpN9IN7Yqypf7tp29ni01d7m4tmF4Uwb%2FaQyFfuQWRlyit3I tZ49Mt1NccryuKDW9PKktnmO53E5jHk%2B8jp9cEp6bGDdy9J9 PC50xSVF7Ea24qCirfQg31eOPjgLk06zqob4EL%2BZmMolqIvM 6TBKU%2FbBNJGv3MY%2Fh8g%2FZVQMId6z0ZKe8Gyp0zPFgWyn czvstuij9LUark057yhnOas4yEJ4FcL31j06t%2Fr1anUUdY%2 BhojRmcPLGVD9b7TpqcwZy3rMwDc2tAfyhHebv2ejeK79qPhUH gWB4TMYbylWIPPhngwFHCyqUZbqhT2EIBVXd4nJV6P4ZrEtlf1 lwqNty%2Bw8ZpUJQQsngIlIQLBoh7fO%2FpgAyBv%2B%2BhEVO UpPFdBkKv0wi5VwgvaZKj0SOssR0NbOcHMcUQUY3QMEszAKO85 KdUv2E6iv7cTPy4H6tODbNddyRbyw2bMl5wvs1E%2Fne1C%2Fy zH%2FJeI3nf8A%2FHLuI4CnqpKLh2SxBxCBR%2FxuSd5xmrOeg p8e0wKS1Jerb4I2GivLM%2BNyfRi9YJ%2F2WFAvTH78rvs0grf h%2F4B%2BhJ3VQd0cXiYCEYSnskfZ73Eh5Bc3fgVLX%2FIT75D ZtZAXqWsUcx5XISz8TLwAokxKAwUyYnahCNvZJFNBxf6D%2B6z YdNxqjxwEHkXM0%2Fd1yalrHSjGsqC&checksum=372688950188347768fc714f440db85a3579e900b 2c9

$2 for a latching switch.

https://www.ebay.com/itm/2Pcs-R16-503AD-OFF-ON-LED-Light-Self-locking-Latching-Push-Button-Switch-HIODUl/353154579448?hash=item5239a73bf8:g:svoAAOSwY0hZrMq d

15meter
08-02-2020, 08:23 PM
Also not very difficult to put together if someone is remotely “handy”.


https://www.youtube.com/watch?v=UxPenA7c0hE&t=4s

And for a fraction of the cost. If you have a scale and measure, the rest can be shipped to you from eBay for <$40.

The photo electric switch is the most expensive part, at almost $19.

https://www.ebay.com/itm/New-OMRON-E3S-GS30E4-Diffuse-Groove-Shaped-Photoelectric-Switch-Sensor/153262672272?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2649

Less than $5 in the gear motor shipped.

https://www.ebay.com/itm/DC-3V-12V-3-30RPM-Brushed-Slow-Speed-Reduction-Mini-Worm-Electric-Gear-Box-Motor/132763825643?hash=item1ee95735eb:g:ZAcAAOSwdudbiJp C

$7 for the relay and socket to your door.

https://www.ebay.com/itm/Relay-Omron-LY2-12V-DC-10A-240VAC-28VDC-with-Socket-base-1pc/271629115467?hash=item3f3e5b604b:g:i-kAAOSwrmdTqNyE

$5 for a power supply.

https://www.ebay.com/itm/AC-DC-12V-2A-24W-POWER-SUPPLY-ADAPTER-CHARGER-FOR-CAMERA-CCTV-LED-STRIP-LIGHT/372688950188?hash=item56c5fe13ac&var&_trkparms=ispr%3D1&enc=AQAFAAADUHToWnaHZyFfHNGZ3ElTXFyG6jknqVdQ2m3CqA URPCajs16m2d%2F3puGdldQLiBnMRcNlh5BPsUSE4Vbnnx6sYj iKlGqJE9zwNVmWUik5eBWyWdAgMl9n5jdXbL3AQF2hRgzCSpxv Bbdo%2FGgFqiFRMZiEElIf%2B%2BjIwL%2Fcq%2FGkoDJ%2FoH sGA%2BFd4L3FEpkqtVYn3FUN00QQ%2FOK8odmHpuMIJcTVce2A AbEyPAFrp8JLrCY0Z0f8OQK%2FR2J%2BucoybK1IFTgwGUmt43 xD%2FPd%2BR19Rm3EuyLUsDLTeLLPvevzQbg4zGWFwFQKjv%2F 6kBVgPos86bm1fGXnRIu77uic4E93QYxxHH8ztTa8jMWx4AazT 9DHuky6AlHPOAi1oE7cL4W%2B%2Brs3CkjZKsjGg0FG9hjG%2B yOXi8Ov%2FlYgh6QdpE104VD%2FYHopjEGt4sCbYzYjpuu10Kd TpN9IN7Yqypf7tp29ni01d7m4tmF4Uwb%2FaQyFfuQWRlyit3I tZ49Mt1NccryuKDW9PKktnmO53E5jHk%2B8jp9cEp6bGDdy9J9 PC50xSVF7Ea24qCirfQg31eOPjgLk06zqob4EL%2BZmMolqIvM 6TBKU%2FbBNJGv3MY%2Fh8g%2FZVQMId6z0ZKe8Gyp0zPFgWyn czvstuij9LUark057yhnOas4yEJ4FcL31j06t%2Fr1anUUdY%2 BhojRmcPLGVD9b7TpqcwZy3rMwDc2tAfyhHebv2ejeK79qPhUH gWB4TMYbylWIPPhngwFHCyqUZbqhT2EIBVXd4nJV6P4ZrEtlf1 lwqNty%2Bw8ZpUJQQsngIlIQLBoh7fO%2FpgAyBv%2B%2BhEVO UpPFdBkKv0wi5VwgvaZKj0SOssR0NbOcHMcUQUY3QMEszAKO85 KdUv2E6iv7cTPy4H6tODbNddyRbyw2bMl5wvs1E%2Fne1C%2Fy zH%2FJeI3nf8A%2FHLuI4CnqpKLh2SxBxCBR%2FxuSd5xmrOeg p8e0wKS1Jerb4I2GivLM%2BNyfRi9YJ%2F2WFAvTH78rvs0grf h%2F4B%2BhJ3VQd0cXiYCEYSnskfZ73Eh5Bc3fgVLX%2FIT75D ZtZAXqWsUcx5XISz8TLwAokxKAwUyYnahCNvZJFNBxf6D%2B6z YdNxqjxwEHkXM0%2Fd1yalrHSjGsqC&checksum=372688950188347768fc714f440db85a3579e900b 2c9

$2 for a latching switch.

https://www.ebay.com/itm/2Pcs-R16-503AD-OFF-ON-LED-Light-Self-locking-Latching-Push-Button-Switch-HIODUl/353154579448?hash=item5239a73bf8:g:svoAAOSwY0hZrMq d


You guys are way to complicated for me, all I'm aiming for is a button to push, the little tube to turn and me watch the beam to get to the center. I need to a LITTLE of the work or I may as well go buy factory. Spinning the little tube is like trimming brass. If I do not need to do it, it's time for:happy dance:

Dimner
08-02-2020, 08:30 PM
Here's my version. I finally got around to finishing it this spring when c19 started.

3 modes. Slow trickle, high trickle and auto trickle. The pot controls a 'gain' type function that adjusts where the auto trickle stops. The motor was something I had on hand and has a 32:1 gear box to reduce speed. Motor is also PWM speed controlled.

Operation is: press auto trickle, motor turns on and dispenses powder until the beam moves to the set level, then the user presses slow trickle 2 times or so to get the beam leveled. Rinse and repeat. The scales beam setting controls the weight.

I builet this so I can easily dispense ladder tests, OCW tests, and precision loads faster.

If there is interest I'll do a whole write up on it.

265642

1hole
08-02-2020, 08:59 PM
You guys are way to complicated for me, all I'm aiming for is a button to push, the little tube to turn and me watch the beam to get to the center. I need to a LITTLE of the work or I may as well go buy factory. Spinning the little tube is like trimming brass. If I do not need to do it, it's time for:happy dance:

My happy solution to manual trickling.

I have no use for anything digital on my loading bench, I want total control of all that's happening there. For my "precise" charges I've always used manual tricklers but I liked none of the commercial ones. SO, I made my own Model Perfect Trickler (and a tip of the hat to ol' Geo. L. Herter).

I mated a 2 1/2 cast iron pipe cap to a 1 1/4" x 6" brass sink drain pipe and filled the cap and lower part of the pipe with molten lead - at 2 1/2 pounds, it's heavy enough to be stable. I used a 4" length of 1/4" thin wall brass pipe (from a broken auto radio antenna) and a common 1/4" radio knob for the dribble tube. The lead filled powder chamber then got a smooth bottom of poured epoxy.

It really is perfect for my needs and was easy and inexpensive to make.

jmorris
08-03-2020, 09:17 AM
You guys are way to complicated for me, all I'm aiming for is a button to push, the little tube to turn and me watch the beam to get to the center.

Even easier, forget the photo electric switch and relay and get a momentary push button instead of the latching one.

jmorris
08-03-2020, 09:20 AM
Here's my version. I finally got around to finishing it this spring when c19 started.

If there is interest I'll do a whole write up on it.

265642

It’s the reloading forum, there is always interest. Start a new thread on your device.

Three44s
08-03-2020, 09:49 AM
I agree! A new thread would be great!

I like the idea of a push button rather than a latching button because you push once instead of twice. I would constantly forget the second push, but that’s just me. I suppose a delay timer that was set to hold a relay in long enough to trickle a particular charge in and you do not have to hold the button either, just one push.

The setups with a camera displaying the balance beam pointer on a screen looks good to old eyes and stiffer necks and shouldered folks like me has it’s appeal also.

Three44s

kokomokid
08-03-2020, 10:57 AM
Also not very difficult to put together if someone is remotely “handy”.


https://www.youtube.com/watch?v=UxPenA7c0hE&t=4s

And for a fraction of the cost. If you have a scale and measure, the rest can be shipped to you from eBay for <$40.

The photo electric switch is the most expensive part, at almost $19.

https://www.ebay.com/itm/New-OMRON-E3S-GS30E4-Diffuse-Groove-Shaped-Photoelectric-Switch-Sensor/153262672272?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2649

Less than $5 in the gear motor shipped.

https://www.ebay.com/itm/DC-3V-12V-3-30RPM-Brushed-Slow-Speed-Reduction-Mini-Worm-Electric-Gear-Box-Motor/132763825643?hash=item1ee95735eb:g:ZAcAAOSwdudbiJp C

$7 for the relay and socket to your door.

https://www.ebay.com/itm/Relay-Omron-LY2-12V-DC-10A-240VAC-28VDC-with-Socket-base-1pc/271629115467?hash=item3f3e5b604b:g:i-kAAOSwrmdTqNyE

$5 for a power supply.

https://www.ebay.com/itm/AC-DC-12V-2A-24W-POWER-SUPPLY-ADAPTER-CHARGER-FOR-CAMERA-CCTV-LED-STRIP-LIGHT/372688950188?hash=item56c5fe13ac&var&_trkparms=ispr%3D1&enc=AQAFAAADUHToWnaHZyFfHNGZ3ElTXFyG6jknqVdQ2m3CqA URPCajs16m2d%2F3puGdldQLiBnMRcNlh5BPsUSE4Vbnnx6sYj iKlGqJE9zwNVmWUik5eBWyWdAgMl9n5jdXbL3AQF2hRgzCSpxv Bbdo%2FGgFqiFRMZiEElIf%2B%2BjIwL%2Fcq%2FGkoDJ%2FoH sGA%2BFd4L3FEpkqtVYn3FUN00QQ%2FOK8odmHpuMIJcTVce2A AbEyPAFrp8JLrCY0Z0f8OQK%2FR2J%2BucoybK1IFTgwGUmt43 xD%2FPd%2BR19Rm3EuyLUsDLTeLLPvevzQbg4zGWFwFQKjv%2F 6kBVgPos86bm1fGXnRIu77uic4E93QYxxHH8ztTa8jMWx4AazT 9DHuky6AlHPOAi1oE7cL4W%2B%2Brs3CkjZKsjGg0FG9hjG%2B yOXi8Ov%2FlYgh6QdpE104VD%2FYHopjEGt4sCbYzYjpuu10Kd TpN9IN7Yqypf7tp29ni01d7m4tmF4Uwb%2FaQyFfuQWRlyit3I tZ49Mt1NccryuKDW9PKktnmO53E5jHk%2B8jp9cEp6bGDdy9J9 PC50xSVF7Ea24qCirfQg31eOPjgLk06zqob4EL%2BZmMolqIvM 6TBKU%2FbBNJGv3MY%2Fh8g%2FZVQMId6z0ZKe8Gyp0zPFgWyn czvstuij9LUark057yhnOas4yEJ4FcL31j06t%2Fr1anUUdY%2 BhojRmcPLGVD9b7TpqcwZy3rMwDc2tAfyhHebv2ejeK79qPhUH gWB4TMYbylWIPPhngwFHCyqUZbqhT2EIBVXd4nJV6P4ZrEtlf1 lwqNty%2Bw8ZpUJQQsngIlIQLBoh7fO%2FpgAyBv%2B%2BhEVO UpPFdBkKv0wi5VwgvaZKj0SOssR0NbOcHMcUQUY3QMEszAKO85 KdUv2E6iv7cTPy4H6tODbNddyRbyw2bMl5wvs1E%2Fne1C%2Fy zH%2FJeI3nf8A%2FHLuI4CnqpKLh2SxBxCBR%2FxuSd5xmrOeg p8e0wKS1Jerb4I2GivLM%2BNyfRi9YJ%2F2WFAvTH78rvs0grf h%2F4B%2BhJ3VQd0cXiYCEYSnskfZ73Eh5Bc3fgVLX%2FIT75D ZtZAXqWsUcx5XISz8TLwAokxKAwUyYnahCNvZJFNBxf6D%2B6z YdNxqjxwEHkXM0%2Fd1yalrHSjGsqC&checksum=372688950188347768fc714f440db85a3579e900b 2c9

$2 for a latching switch.

https://www.ebay.com/itm/2Pcs-R16-503AD-OFF-ON-LED-Light-Self-locking-Latching-Push-Button-Switch-HIODUl/353154579448?hash=item5239a73bf8:g:svoAAOSwY0hZrMq d

And now the wait on the slow boat from China. Also guessing I will see something in Dimners set up that I need.

MostlyLeverGuns
08-03-2020, 11:41 AM
Midwayusa lists a Hornady Vibrating Powder Trickler, I have a Franklin Armory (Midway?) that I've been using for years, maybe on some auction site for older ones. The electronic scales have replaced them though I guess I haven't found the need. More modern powders and spherical powders (RL15, Varget, 2015, H322, TAC, 2520) measure much better than the old IMR 4064 and 3031, eliminating the need for tricklers. If you can find a working Franklin Armory Electric Trickler, it does work well

1066
08-03-2020, 12:57 PM
Where have all the electric powder tricklers gone? I was searching for a factory trickler (Omega,Dandy or Targetmaster). These were all the rage five or so years ago but I did not find one with any reloading suppliers.

The Targetmaster auto-trickler is still available but has only ever been available direct from the manufacturer.

Here's one in action with a dedicated sensor for the RCBS M500 scale.
https://youtu.be/1NNIC2Qn50U

kbstenberg
08-03-2020, 09:13 PM
I am electrically chalanged. I have built an electrical trickler like diagrammed above. But the motor turns too fast. is there a way to slow it down? The motor in the above post runs at 3 to 30 rpms. So there must be a way to adjust the speed. Kevin

John Boy
08-03-2020, 09:18 PM
The reason mechanical tricklers are not popular is because the best trickler is ones index finger and thumb

abunaitoo
08-05-2020, 04:21 PM
I've been thinking of making one.
Instead of a spinning tube, I was thinking of a tiny vibrating motor.
I've found that some electric toothbrush have one that just might work.
I think I saw one with the same idea for sale someplace.

bangerjim
08-05-2020, 04:40 PM
You guys are way to complicated for me, all I'm aiming for is a button to push, the little tube to turn and me watch the beam to get to the center. I need to a LITTLE of the work or I may as well go buy factory. Spinning the little tube is like trimming brass. If I do not need to do it, it's time for:happy dance:

Some things do NOT need to be electrically automated! That's why I have used a manual trickler for many many years. Works great, nothing to cobble together, easy and fast to use. Why muck up perfection with gears, motors, switches, and power supplies?

banger

bangerjim
08-05-2020, 04:41 PM
I am electrically chalanged. I have built an electrical trickler like diagrammed above. But the motor turns too fast. is there a way to slow it down? The motor in the above post runs at 3 to 30 rpms. So there must be a way to adjust the speed. Kevin

You want to VIBRATE, not rotate.

banger

nhyrum
08-05-2020, 04:54 PM
You will need a speed controller. I believe most motors can be controlled using pulse width modulation (pwm)

If all you need is push a button and it goes, there's a bunch of automated dispensers out there. Rcbs, Lyman, Prometheus, autotrickler, etc. No need to build one. Let the enginerds who actually know how to build things, build these things

Sent from my SM-G975U using Tapatalk

Dimner
08-05-2020, 05:02 PM
Rotation works great... and yes PWM is the key, along with gear boxes

Sometimes electric makes repeatable chores much easier. In my situation, very much easier.


https://youtu.be/RVZ8C2Ikj1M

jmorris
08-05-2020, 10:40 PM
I am electrically chalanged. I have built an electrical trickler like diagrammed above. But the motor turns too fast. is there a way to slow it down? The motor in the above post runs at 3 to 30 rpms. So there must be a way to adjust the speed. Kevin

Voltage or pulse width modulation would do it.

15meter
08-06-2020, 08:58 AM
Some things do NOT need to be electrically automated! That's why I have used a manual trickler for many many years. Works great, nothing to cobble together, easy and fast to use. Why muck up perfection with gears, motors, switches, and power supplies?

banger

Until you have the start of arthritis and perhaps the start of carpel tunnel syndrome then simply pushing a button is less painful.

CrystalShip
08-14-2020, 12:40 PM
I have an Older Midway battery Operated with just a simple Button. Plain and simple

hpdrifter
08-17-2020, 11:11 AM
Working on building my own, there are low speed tiny gear motors out there for not much money.

I ordered one during the great house arrest. Unfortunately the house arrest end and shooting, boating and motorcycling weather coincided and the powered powder trickler was back-burnered.

I'll get back to it when the snow flies again. If and when I get it working I'll post pictures and description.

The plan is to direct drive an RCBS trickler with the gear motor actuated with a momentary switch.

Do a search for 60 rpm gear motor and you'll see the size I'm going to use. They are available in both AC and DC. Mine is a 12v DC and the plan is to use the charger from the motorcycle.

Hopefully it will be a simple and inexpensive majic widget.

I was doing the same, albeit a bit different.
I was gonna use a Lee Perfect Scale and high speed trickle to a certain point.
a sensor on the beam indicated movement and slowed the trickle down.
I was using a micro controller.
I was having 3D printed parts made by a friend, but he moved away so project stopped.
That way every charge was actually weighed by a scale; non electronic.
I used to calibrate electronic scales as part of my job; don't trust them a heck of a lot.

Drew P
08-20-2020, 01:37 AM
I made one with a tiny gear motor on the end of my hornady trickler and a push button. It’s nice. I slipped a small lithium battery inside the base and it’s lasted years

Walks
08-20-2020, 01:57 AM
I'm with John Boy, thumb & forefinger.