Induction brass annealer redux

[itchyTF]

Easy old question:
What is the right annealing temperature?
There were so many opinions about this, that I'm a bit confused.

You and probably everyone else. Doesn't appear to be a definitive answer, at least I haven't heard one yet. Especially with the short "burn" cycle.

 

[astronut]

I have already gone through that same problem.
Several options are available to solve it.
If you are using a single pole relay, make sure that the distance of the open contact is above 1,5 mm. Closer distance between contacts may take you to a big-long-lasting-spark, thus destroying the relay.
Another alternative is to use a double contact relay, making sure that the distance between both contacts is equal, pair to pair. The idea is to have both contacts opened at the same time, to avoid any return current.
I've also tried to use a mosfet instead, but I must have done something wrong, because I couldn't succeed.

My relay only has an 'open' distance of <1 mm. I'll order the relay suggested in the parts list. Thanks.

 

[Gina1]

Hi guys

Am going to start an interesting build. I was at the range yesterday and started talking with a fellow shooter, two tables over. What started the conversation was the “explosion” coming from his rifle. Even with my headphones turned off, the noise still hurt my ears

Seems he was shooting a 375 CheyTac. Shoots a 300 grain machined bullet. In the course of our conversation, seems he is having a problem getting his spent cases annealed. That brought up the GinaErick annealer. In talking about mine he asked if I would build one for him. I thought about it and told him I would get back to him.

Now normally, I do not build GinaErick's, for anyone, but this was kind of interesting. The CheyTec case is .635 inches in diameter and 3.026 inches long (head to neck) Also additionally he wants to be able to anneal 300 win mag. (.528 diameter belted case).

Here is the interesting part... The closer the case is to the coil, the more current the inductor PCB will pull. The coil size ID (diameter of the basic GinaErick) is 1 1/8 inches and was designed for all the .469 size cases (6xc, 303, 30-06 etc). All of the neck and most of the shoulders will fit in the coil and pull about 12 amps. (12.5 amp. PS limit).

I tried to put the CheyTec case in the coil and was pulling 13 amps with just half the neck into the coil.with this size case, it's just too close to the coil..

So I need to make a larger coil, also because of the different head sizes, inserts for the trap door to account for the different case diameters.

I'll be using the parts from mod1, so it will be a basic GinaErick (not constant current model)

Will let you know how it goes, once I get started.

Gina

 

[greg8012]

Glad to share

Gina

Gina, go into business

 

[Gina1]

Hi all...

Had a PM from a builder, that the trap door solenoid from my parts list was no longer in stock from Jameco. I tried to find a replacement from various vendors across the net but had no luck.
Problem is finding a 12 volt solenoid with a 1/2 inch stroke. For most cases (308, 30-06, 6XC, 6BR, etc) the head of the case is .470 inches, and that 1/2 inch stroke was needed to drop the case through the trap door. There are was around this using a bell crank and a smaller stroke solenoid, but that's just more figuring out work.

Jameco has a solenoid P/N 2201818 which has a 1.0 inch stroke, but it is a 24 volt solenoid. A simple solution to this is replace the 12 volt DC power supply with a double output power supply.
It has the 12 volts output needed for the coolant pump and/or 12 volt fans, and the 24 volts for the solenoid. Jameco P/N 2106124.

If you've already started your and have your 12 volt PS, you can purchase a separate 24 volt PS Jameco P/N 323353

All of this will need some wiring changes. An additional 110 volt AC connection to the separate 24 volt power supply. Also wiring the 24 volt DC output to the timer to operate the 24 volt solenoid.
I'm sure you all can figure it out, if you run into any problems, feel free to PM me..

And NO !! I do not make any money from Jameco.

Hope this helps

Gina

 

[Webster]

Hi all...

Had a PM from a builder, that the trap door solenoid from my parts list was no longer in stock from Jameco. I tried to find a replacement from various vendors across the net but had no luck.
Problem is finding a 12 volt solenoid with a 1/2 inch stroke. For most cases (308, 30-06, 6XC, 6BR, etc) the head of the case is .470 inches, and that 1/2 inch stroke was needed to drop the case through the trap door. There are was around this using a bell crank and a smaller stroke solenoid, but that's just more figuring out work.

Jameco has a solenoid P/N 2201818 which has a 1.0 inch stroke, but it is a 24 volt solenoid. A simple solution to this is replace the 12 volt DC power supply with a double output power supply.
It has the 12 volts output needed for the coolant pump and/or 12 volt fans, and the 24 volts for the solenoid. Jameco P/N 2106124.

If you've already started your and have your 12 volt PS, you can purchase a separate 24 volt PS Jameco P/N 323353

All of this will need some wiring changes. An additional 110 volt AC connection to the separate 24 volt power supply. Also wiring the 24 volt DC output to the timer to operate the 24 volt solenoid.
I'm sure you all can figure it out, if you run into any problems, feel free to PM me..

And NO !! I do not make any money from Jameco.

Hope this helps

Gina

you might try this Co. for parts. It was a good Co. to deal with 20 years ago. I no longer build power supplies.

E-Bay looks pretty good for transformers.

http://www.electronicsurplus.com/

Electronic Surplus
8755 Munson Road #6
MENTOR, OH 44060
Phone: (440) 205-8388
Fax: (440) 205-8377

(Feel free to place orders online and we will provide local pickup as well)
Phone Hours: Monday - Friday 8am - 4pm, Saturday 8am - 1pm

 

[FishinDog]

Hi all...

Had a PM from a builder, that the trap door solenoid from my parts list was no longer in stock from Jameco. I tried to find a replacement from various vendors across the net but had no luck.
Problem is finding a 12 volt solenoid with a 1/2 inch stroke. For most cases (308, 30-06, 6XC, 6BR, etc) the head of the case is .470 inches, and that 1/2 inch stroke was needed to drop the case through the trap door. There are was around this using a bell crank and a smaller stroke solenoid, but that's just more figuring out work.

Jameco has a solenoid P/N 2201818 which has a 1.0 inch stroke, but it is a 24 volt solenoid. A simple solution to this is replace the 12 volt DC power supply with a double output power supply.
It has the 12 volts output needed for the coolant pump and/or 12 volt fans, and the 24 volts for the solenoid. Jameco P/N 2106124.

If you've already started your and have your 12 volt PS, you can purchase a separate 24 volt PS Jameco P/N 323353

All of this will need some wiring changes. An additional 110 volt AC connection to the separate 24 volt power supply. Also wiring the 24 volt DC output to the timer to operate the 24 volt solenoid.
I'm sure you all can figure it out, if you run into any problems, feel free to PM me..

And NO !! I do not make any money from Jameco.

Hope this helps

Gina

You can also try this solenoid from Amazon. I posted it a few pages back with my updated parts list. I haven't tried it yet; still working on testing it. Just under 1/2" pull but you can cut out part of your trap door; only need enough to catch enough of the bottom of the case to hold it, not necessarily the entire bottom.

Uxcell JF0730B Linear Pull Solenoid DC 12V, 300 mA 3 $12.65

• Product name : DC solenoid electromagnet; model : jf-0730b; material : metal, electronic parts
• Rated Voltage : DC 12V; rated current : 300mA; Type : pull
• Force& stroke : 10mm, body Size : 55 x 18 x 15mm/2. 2" x 0. 71" x 0. 59"(L*w*h); plunger bar Size : 6. 5 x 18mm/0. 26" x 0. 71" (D * L)
• Screw Hole diameter : 2. 8mm/0. 11"; total Length : 25. 5cm/10"; cable Length : 21cm/8. 3"
• Color : Blue, Silver Tone; weight : 38G; package content : 1 x DC solenoid electromagnet

 

[Ron Blain]

Gina
Don't know how well it would replace your solenoid but McMaster Carr Supply has a few with 12 VDC coils, pull type, with 13 and 22 oz. force.

Ron

 

[Gina1]

Gina
Don't know how well it would replace your solenoid but McMaster Carr Supply has a few with 12 VDC coils, pull type, with 13 and 22 oz. force.

Ron

Good call. They do have a solenoid that would replace the original. But the current draw is rather hi. 3 amps (1 inch stroke) and price is $36.87

 

[Gina1]

You can also try this solenoid from Amazon. I posted it a few pages back with my updated parts list. I haven't tried it yet; still working on testing it. Just under 1/2" pull but you can cut out part of your trap door; only need enough to catch enough of the bottom of the case to hold it, not necessarily the entire bottom.

Uxcell JF0730B Linear Pull Solenoid DC 12V, 300 mA 3 $12.65

• Product name : DC solenoid electromagnet; model : jf-0730b; material : metal, electronic parts
• Rated Voltage : DC 12V; rated current : 300mA; Type : pull
• Force& stroke : 10mm, body Size : 55 x 18 x 15mm/2. 2" x 0. 71" x 0. 59"(L*w*h); plunger bar Size : 6. 5 x 18mm/0. 26" x 0. 71" (D * L)
• Screw Hole diameter : 2. 8mm/0. 11"; total Length : 25. 5cm/10"; cable Length : 21cm/8. 3"
• Color : Blue, Silver Tone; weight : 38G; package content : 1 x DC solenoid electromagnet

Agreed... Worth a try. Good call.

 

[Ron Blain]

Good call. They do have a solenoid that would replace the original. But the current draw is rather hi. 3 amps (1 inch stroke) and price is $36.87

I was looking at 1/2 inch stroke but I may have screwed that up. I would think your original solenoid or equivalent is out there somewhere. There has to be simpler solution than upping the 12 Volt power supply to 24 Volt.

Ron

 

[Gina1]

I was looking at 1/2 inch stroke but I may have screwed that up. I would think your original solenoid or equivalent is out there somewhere. There has to be simpler solution than upping the 12 Volt power supply to 24 Volt.

Ron

Sorry Ron... not upping the 12 volt PS. Just adding a low cost 24 volt PS ($11.49) or using a dual PS 12 volts and 24 volts PS ($24.95). The 24 volt solenoid cost is $16.95. Over all it's a little bit more expensive, but it can be built now. AND is a simple fix.
The other advantage of switching to this 24 volt solenoid is the 1 inch stroke, is that the GinaErick trap door can now handle larger head cases. Cases larger than .470". ie the 300 win mag, with a head size of .528" or larger.

I'm trying to keep it simple and still low cost, as well as easy parts access. That's why I used Amazon and Jameco as the parts suppliers.
Hope this helps.

Gina

 

[Ron Blain]

I see your point there going to the 1" stroke. Additionally your goal of making the parts easily available. The solenoid cost is reasonable and the part itself easily obtained. Wanted to thank you both again for making this so open and available.

Ron

 

[Gina1]

I see your point there going to the 1" stroke. Additionally your goal of making the parts easily available. The solenoid cost is reasonable and the part itself easily obtained. Wanted to thank you both again for making this so open and available.

Ron

Awwwww, gee wilikers... Thank you

 

[GrocMax]

Paddle style trap door is quick and easy to configure, not complicated at all. Locate center pivot last. Use a small chain link or bent wire link between solenoid and paddle to compensate for the non linear motion.

 

[Stan1]

Hi, first post here. Mostly I wanted to send thanks to Gina1 and hollywood and *all* the others who contributed to this great thread.

FWIW I used the same Uxcell JF0730B solenoid from Amazon as FishingDog. Works great.

I built a bone stock version of the original style with 12VDC fans. My one addition was digital thermometers on the input and output sides of the coil. With an ambient temperature of ~72*F everything stabilizes at a max of 52*C on the output side at 11.1 amps, using a 3.2 sec. anneal, 0.3 eject, and 1.75 delay for a 5.25 cycle time. If I shut down the coil and let the pump run it quickly cools.

I turned a nylon funnel for the coil that makes feeding simple like the others here. I also plan to make an autofeeder as time permits.

Here's my first run of 305 new 300 BLK, 695 left to go. That only took ~27 minutes so I'm happy. The shiny one at around 1:00 center had the Tempilaq. That stuff needed steel wool to remove...

Thanks again to all the contributors. What a great tool.

 

[GrocMax]

http://www.electricalsuppliesauthority.com/product/10200065/

Looks to be the same 12v .5" pull solenoid unit as originally posted by Gina1, or very close to it.

Edit: Yup, exact same specs.

Also, you don't need .500" stroke for a .472" diameter case in the straight pull configuration. If you cut a crescent/half moon shape out of the end you shorten the stroke needed by a large amount. You only need to cover around 2/3rds of the hole, if that.
These 10mm stroke models will work if you let 'em.

 

[Gina1]

WELL... that's what this thread is all about. Innovation is a live and well here. I don't have all the answers, just maybe something that will work. All of you that have contributed your knowledge and information makes this a better and improving annealer all the time.
SCott... I don't know how you found that solenoid. I must have spent an hour surfing the web. Once again you are the master !! Thank you.
Stan1... Looks good. Any chance we could see a picture of your feed funnel ?

Gina

 

[GrocMax]

May be just another drop-ship outfit with a pretty website and not an actual warehouse full of parts on hand ready to ship.

 

[FishinDog]

I've had a few requests for the Ace Velocio PLC program. I've attached the zip folder that has the file you'll open with VBuilder. No doubt it could still use some "tweaks" but I'm getting good results. PM me if you have questions and I'd be glad to help as much as I can.