Enhancement on a rcbs 502 scale

[Dutchie]

Hi , you all out there,( or in here )


I'm a lazy person with reloading so when i reload 30-06 for my Garand i used to be half the evening with my chin on the table powdertrickling and got fed up and came up with an idea.

I built two photoelectric sensors on the 502 scale and when reaching zero , a green led was lit , finaly , what a luxury.

Over the years it broke down and never repaired it but the plan is to repair the thing again and post the result here.

Maybe you like it and might want to make something too .:mrgreen:.

Hans.

[thehouseproduct]

I'd like to see picturs if you have them.

[williamwaco]

I'd like to see picturs if you have them.


Me too.

[Dutchie]

I will post da picturs when i repaired the electronics,problem is at the moment i have little time due to long work.



http://castboolits.gunloads.com/imagehosting/thum_205734e84e688ec0a5.jpg (http://castboolits.gunloads.com/vbimghost.php?do=displayimg&imgid=2270)


http://castboolits.gunloads.com/imagehosting/205734e84e69fd289d.jpg (http://castboolits.gunloads.com/vbimghost.php?do=displayimg&imgid=2271)


http://castboolits.gunloads.com/imagehosting/205734e84e6df64e75.jpg (http://castboolits.gunloads.com/vbimghost.php?do=displayimg&imgid=2272)http://castboolits.gunloads.com/imagehosting/205734e84e7e08bdcc.jpg (http://castboolits.gunloads.com/vbimghost.php?do=displayimg&imgid=2273)

http://castboolits.gunloads.com/imagehosting/205734e84e7f16312a.jpg (http://castboolits.gunloads.com/vbimghost.php?do=displayimg&imgid=2274)

The diagram is quite simple , had to remake this one due to spread in parts, thats why it didnt work anymore , so at the moment the next best thing is the green light extra yellow on is too light green and yellow is too light, only green is the right charge and only red . . . . . . could be dangerous or in fact to heavy.

The two sensors are glued to the scale when the beam was in balance.Disadvantage is , you can make this too accurate like mine , you really have to hold your breath oterwise the led will always the other color you don't want.
Also there is some hystresis.Power supply is a 9 Volt battery.Total cost i think 10 bucks or less,
This is a real cheap addon with maximun effect on your chin and your eyes.

Yes i still have to make a pcb for it but anybody with some soldering experience can reproduce this one.

I understand that not everybody can read the diagram , but i could make a nice pdf out of it,(when time is on my hand).

questions ?

Hans.

[gzig5]

I will post da picturs when i repaired the electronics,problem is at the moment i have little time due to long work.



http://castboolits.gunloads.com/imagehosting/thum_205734e84e688ec0a5.jpg (http://castboolits.gunloads.com/vbimghost.php?do=displayimg&imgid=2270)


http://castboolits.gunloads.com/imagehosting/205734e84e69fd289d.jpg (http://castboolits.gunloads.com/vbimghost.php?do=displayimg&imgid=2271)


http://castboolits.gunloads.com/imagehosting/205734e84e6df64e75.jpg (http://castboolits.gunloads.com/vbimghost.php?do=displayimg&imgid=2272)http://castboolits.gunloads.com/imagehosting/205734e84e7e08bdcc.jpg (http://castboolits.gunloads.com/vbimghost.php?do=displayimg&imgid=2273)

http://castboolits.gunloads.com/imagehosting/205734e84e7f16312a.jpg (http://castboolits.gunloads.com/vbimghost.php?do=displayimg&imgid=2274)

The diagram is quite simple , had to remake this one due to spread in parts, thats why it didnt work anymore , so at the moment the next best thing is the green light extra yellow on is too light green and yellow is too light, only green is the right charge and only red . . . . . . could be dangerous or in fact to heavy.

The two sensors are glued to the scale when the beam was in balance.Disadvantage is , you can make this too accurate like mine , you really have to hold your breath oterwise the led will always the other color you don't want.
Also there is some hystresis.Power supply is a 9 Volt battery.Total cost i think 10 bucks or less,
This is a real cheap addon with maximun effect on your chin and your eyes.

Yes i still have to make a pcb for it but anybody with some soldering experience can reproduce this one.

I understand that not everybody can read the diagram , but i could make a nice pdf out of it,(when time is on my hand).

questions ?

Hans.

It wouldn't take much to tie that into one of those battery powered tricklers. You could dump 90% of the charge and then let the electronics do the rest. I've got one of those scales and last year I bought a powered trickler (Omega Powder Trickler, works great). Manually, I can load three rounds a minute accurate to .05 gr. I've been wanting to automate it for high volume varmint loading. Your schematic gives me a few ideas.

[Dutchie]

let me guess,(I don't know the powered trickler) , u are going to use half the diagram and connect it to the slow speedbutton on the trickler ?

did a fast google on the trickler, got myself also a few ideas but how about the combination low sensor and comparator to the slow speed and the low sensor output to the fast speed ?

My trickler is still a 30-06 case and i dump slightly under the charge i want.

Hans.

[rbertalotto]

Wow......nice idea.

You folks that weigh every charge should let the Bench Rest crowd know how important this is. Afterall, these guys, like most precision shooters, drop charges by volume, not weight.......Just saying........ :-)

[Dutchie]

You folks that weigh every charge should let the Bench Rest crowd know how important this is. Afterall, these guys, like most precision shooters, drop charges by volume, not weight..

LOL.I know, but....

Imma noob, we start reloading direct from the hoppper into the case, then we do something trickly with scales , and then we r going 2 look at volumes!

I'm at stage two. :bigsmyl2:

Hans.

[Boerrancher]

I have a friend that is a gizmo and gadget guy. He would love this. It is a great idea. I am too set in my ways and don't shoot or reload enough any more to justify it, so I will stick to my old Lyman 55 powder measure. It throws 'em close enough for me.

Best wishes,

Joe

[gzig5]

let me guess,(I don't know the powered trickler) , u are going to use half the diagram and connect it to the slow speedbutton on the trickler ?

did a fast google on the trickler, got myself also a few ideas but how about the combination low sensor and comparator to the slow speed and the low sensor output to the fast speed ?

My trickler is still a 30-06 case and i dump slightly under the charge i want.

Hans.

Yeah, something like that. This trickler is really nice IMHO. Very tunable for how fast you want it to come out and easy to set it to feed a single grain. I haven't really looked at it yet, but in my mind I would run at fast speed until the fist sensor is made, switch to low speed until the second sensor is made and have that set up so it turns off right on the button. I do it manually very quickly now, the circuit would just make it easier. Might end up with a heavy or light charge every now and then but the heavy can be dumped back and the light manually trickled up if you want. Just need to get time to do it. I do machine automation in my real life so I also have access to more sophisticated controllers that with enough work could automate the entire process, sort of like a poor man's Prometheus. I don't know that I'll do the full Monty, but would like automate part of it.

[Dutchie]

but in my mind I would run at fast speed until the fist sensor is made, switch to low speed until the second sensor is made

the low sensor (the one on the upper side) output to the highspeed and when the comparator is true,and low is true go to lowspeed.
When the comparator only is true or high is true , stop trickling.

Think that works, oh, and a start and reset button , make a truth table and go.

But you might not want to open the trickler.

Anyways looks like fun to build and to have , your own fully automated filling station.

Hans.