you would need a custom die made from a resizing reamer. im not surprised the bushing die didn’t work.
New Brass prep service offering.
- Thread starter Black Sheep
- Start date
tmwinds
Gold $$ Contributor
No, but I saw a hearse pulling a U-Haul.
Dusty Stevens
Shiner
The idod would work on maybe 5% of the cases i turn. Turning over a mandrel with a tool that follows that mandrel is the only way ive seen it done successfully. It also doesnt leave lathe cuts in the neck.
In my personal opinion, the Idod machine is made backwards. When I turn necks, on my full size lathe, I machine a mandrel, with a shoulder to stop against, about .001 oversize to the id of the case, push the case on with the tail stock and make the cut in one pass never touching the cross slide setting. Feed the cutter by hand to the shoulder, engage the power feed and machine off of the case under power. Makes a perfectly concentric neck within .0001 easily. If the case wobbles a little bit who cares! The Idod, by design, transfers the wobble or runout of the case body to the neck, not good, and would be a no go for me. Sorry, but they need to rethink the engineering on this product in my personal opinion.
Paul
Paul
jackieschmidt
Gold $$ Contributor
I wanted to avoid saying that, but strictly from a Machinist point of view, and considering the tolerances we work with in turning necks, the machine is flawed.
If someone really wanted a true production line neck turning operation, taking as much of the human element out as possible, there are already systems that can be purchased at a reasonable cost that do indeed work off of a mandrel with the final thickness being determined by the distance between the cutting edge and the mandrel.
Alex Wheeler
Site $$ Sponsor
I know some guys have a fire form barrel with a no turn neck they shoot the cases in first to straighten them out then turn on the idod. Thats a lot of extra work buts its probably the best way to do it with that machine
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Black Sheep
Gold $$ Contributor
I would like to thank everyone wishing me success on my business venture. I see that while doing my research I should have asked for ideas on what equipment would be ideal for the purpose of a neck turning business. Hind sight!
I started this thread to offer brass turning services using an AutoDod and it has been turned into a discussion on the shortcomings of the AutoDod. I understand where you are coming from and I don’t think you’re doing anything other than trying to enlighten the readers, however having that discussion on my thread has about guaranteed that my $3000 plus investment has been wasted (still a better record than my market investments).
Not everyone has or can afford a full-size lathe or have the knowledge and ability to manufacture their own tooling. Why mention that there are already systems out there that can be purchased at a reasonable cost that will do the job as you think it should be done and then not tell us what those systems are?
Since the purpose of this thread has died a horrible and bloody death, I’m dead serious in asking what system/systems are out there that properly turns necks? I would like my business to succeed and hopefully it’s not too late to ask for advice.
Thank you,
Chris
I started this thread to offer brass turning services using an AutoDod and it has been turned into a discussion on the shortcomings of the AutoDod. I understand where you are coming from and I don’t think you’re doing anything other than trying to enlighten the readers, however having that discussion on my thread has about guaranteed that my $3000 plus investment has been wasted (still a better record than my market investments).
Not everyone has or can afford a full-size lathe or have the knowledge and ability to manufacture their own tooling. Why mention that there are already systems out there that can be purchased at a reasonable cost that will do the job as you think it should be done and then not tell us what those systems are?
Since the purpose of this thread has died a horrible and bloody death, I’m dead serious in asking what system/systems are out there that properly turns necks? I would like my business to succeed and hopefully it’s not too late to ask for advice.
Thank you,
Chris
Black Sheep
Gold $$ Contributor
Thank you Alex,
That is how I was planning on turning my own brass, and I've told a couple of would be customers that's how to get the best results.
Alex Wheeler
Site $$ Sponsor
I think the very best necks come off of a well tuned hand held conventional turner. But a poorly tuned process can produce worse necks than the factory. To do it with volume, what you have is probably just fine and once the carbon layer builds up inside the necks the surface finish should smooth out. The only real problem I see is that since your turning the id and od and there will be neck runout you have to take off a lot of brass. So you may have trouble with some of the minimal turn chambers that are the trend.
All of my new brass from peterson, adg, lapua has very good concentricity right out the box, less than 1 thou. Would work great in their virgin state on the idod.
I love the idea of having the ID and OD of my necks completely concentric to the body of the case.
I do see the issue though, turning brass that has quite a bit of runout on that machine may fix one problem but create another. and trying to work on someones used brass with varying amounts of runout would be a headache.
As long as the runout is good, i dont see how it can get any better than the idod for the perfect neck turn. I don’t agree with the theory that inconsistencies on the ID of the brass are pushed to the outside by a mandrel.
possibly offer virgin brass turned on the idod for sale in popular neck turn calibers?
I love the idea of having the ID and OD of my necks completely concentric to the body of the case.
I do see the issue though, turning brass that has quite a bit of runout on that machine may fix one problem but create another. and trying to work on someones used brass with varying amounts of runout would be a headache.
As long as the runout is good, i dont see how it can get any better than the idod for the perfect neck turn. I don’t agree with the theory that inconsistencies on the ID of the brass are pushed to the outside by a mandrel.
possibly offer virgin brass turned on the idod for sale in popular neck turn calibers?
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Alex Wheeler
Site $$ Sponsor
I dont either. I dont set neck tension with a mandrel for that reason. Not that it doesnt work. The main difference between how I turn and how we are told to turn is my mandrel fits very snug inside the neck. You have to use good lube and a carbide mandrel. You also dont want a cutter too sharp. A little tool push off here is good.
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Dusty Stevens
Shiner
Its mainly going to be an issue with necked up brass. Thats where ive seen the unacceptable types of runout
jackieschmidt
Gold $$ Contributor
That is why I make my 30BR Brass by blowing them out instead of necking them up.
how do you do this?
Dusty Stevens
Shiner
Or you shoot a 6br in a 30br barrel. You dont have to put the 30 chamber in a 6mm barrel. I shoot 220 russians in a 6ppc barrel all the time. Makes perfect cases
AlNyhus
Silver $$ Contributor
That's what I've been doing lately. The outer necks end up straight to the long axis of the case body this way.
The inside of the necks still need attention to remove the funnel shape and make them round prior turning the O.D. over a mandrel.
Good shootin' -Al
very cool, i have yet to hear about that process for fireforming.
Tim Singleton
Gold $$ Contributor
PMA tool and 21st century make small bench top power heads for mandrel turning necks
to help speed production several different turners preset cut depth so not a lot of readjusting.
sell the idod rig and regroup. There’s a market for what you want to do.
imo this is just a little bump in the road
to help speed production several different turners preset cut depth so not a lot of readjusting.
sell the idod rig and regroup. There’s a market for what you want to do.
imo this is just a little bump in the road
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