Haas CnC Mini Mill-2: Milling square stock 1in on the end round?

[Jesse Skellington]

Hi All,

Looking for some tips or best practices. On a project to automate this prosses with the 2 CnC Mills. I have taking on in our shop.

We saw-cut a 1x1x6 inch rectangle block from different types of metals. Ranging from aluminum to stainless steel, 15-5 steel, and inconel and monel.

We round 1 inch of one end on a conventional three jaw lathe with a dog driver. Then we put it into a CNC lathe. To be turned into parts.

We have a Haas Mini Mill-2 and a VF1.

Has anybody done something like this? If so how did you go about it. I have quite a few thoughts. I was hoping not to have to remake the wheel If this is a common practice in other shops.

I find a lot of tutorials and videos on turning square-bar into round-bar on a lathe but not on a conventional mill or a CnC mill.

Thanks in advance :-)

 

[Donkey Hotey]

I put square bar in a 4-jaw chuck in the CNC lathe and jump straight to making a round part.

If round part needs to be round, use roundy-round machine.

 

[EmGo]

I put square bar in a 4-jaw chuck in the CNC lathe and jump straight to making a round part.

1" square might be a little big for 5C but pretty sure 16C goes that big.

 

[Donkey Hotey]

1" square might be a little big for 5C but pretty sure 16C goes that big.

There just aren't enough nice workholding options for 3J and 16C collets outside the lathe. Yes, both go beyond 1".

 

[Jesse Skellington]

I put square bar in a 4-jaw chuck in the CNC lathe and jump straight to making a round part.

If round part needs to be round, use roundy-round machine.

What is a "roundy-round machine". Can you add a link to one you like?

 

[Donkey Hotey]

What is a "roundy-round machine". Can you add a link to one you like?

This one:

We round 1 inch end on a conventional three jaw lathe with a dog driver. Then we put it into a CNC lathe. To be turned into parts.

 

[Jesse Skellington]

Hi All,

Thx for the post so fare! :-)

Note: I'm looking for ways to automate this posses with the Haas CnC mills. I want to get away from using the conventual lathes.

Note: Not all saw-cuts have 4 even sides out of the blocks. Some have rounded corners of varying sizes. We cut out of large round stock. Basically odd shaped triangle bars stock with 2 strait sides and one sides being round.

 

[EmGo]

Note: I'm looking for ways to automate this posses with the Haas CnC mills. I want to get away from using the conventual lathes.

You've gotta be kidding. Since you've already decided that, stand the part up in a vise with a v-jaw on one side, drive around it with an endmill once or twice, then put it in the "See and See" lathe.

 

[Jesse Skellington]

I appreciate the help. Reading and writing is not my best skills. I appreciate the patience :-)

 

[Houdini]

We saw-cut a 1x1x6 inch rectangle block from different types of metals.

We round 1 inch of one end on a conventional three jaw lathe with a dog driver. Then we put it into a CNC lathe. To be turned into parts.

Hang on, what!?
Your putting a 1" x 1" square material that is 6" long in a lathe with a 3 jaw chuck? and using a dog? huh?

 

[Houdini]

Note: Not all saw-cuts have 4 even sides out of the blocks. Some have rounded corners of varying sizes. We cut out of large round stock. Basically odd shaped triangle bars stock with 2 strait sides and one sides being round.

And now your saying it has saw cuts on the sides of the blocks, is this Ai?

 

[EmGo]

Your putting a 1" x 1" square material that is 6" long in a lathe with a 3 jaw chuck? and using a dog? huh?

No no no, it's a 3 jaw lathe, like cerberus. That's why it needs a dog driver.

But I still don't understand why they don't just stand the damn things on end in a vise and drive around them with an end mill. Feed three of them to the lathe and proserpina's yer aunty.

 

[Houdini]

No no no, it's a 3 jaw lathe, like cerberus. That's why it needs a dog driver.

But I still don't understand why they don't just stand the damn things on end in a vise and drive around them with an end mill. Feed three of them to the lathe and proserpina's yer aunty.

Yeah that's the obvious way to do it, I didn't get what the initial setup was.

 

[Donkey Hotey]

We round 1 inch of one end on a conventional three jaw lathe with a dog driver. Then we put it into a CNC lathe. To be turned into parts.

What does any mill at all or any conventional lathe has to do with, "Then we put it into a CNC lathe. To be turned into parts."

If it needs to go into a CNC lathe, use a four-jaw chuck and put it in the CNC lathe. The mills don't get a vote.

 

[EmGo]

What does any mill at all or any conventional lathe has to do with, "Then we put it into a CNC lathe. To be turned into parts."

If it needs to go into a CNC lathe, use a four-jaw chuck and put it in the CNC lathe. The mills don't get a vote.

First op. He's turning a section in engine lathes so it's round, then putting into the nc lathe, probably a 3 jaw power chuck. I would not use a 4 jaw manual chuck in the nc either. Another way would be a 2-jaw with special jaws but maybe that's too advanced for now.

He wants a round area to grab it, but not do it by hand and he has a minimill, so ... wtf, why not ? may as well, can't dance.

 

[Donkey Hotey]

First op. He's turning a section in engine lathes so it's round, then putting into the nc lathe, probably a 3 jaw power chuck. I would not use a 4 jaw manual chuck in the nc either. Another way would be a 2-jaw with special jaws but maybe that's too advanced for now.

He wants a round area to grab it, but not do it by hand and he has a minimill, so ... wtf, why not ? may as well, can't dance.

I understand what you're saying. I understood what he previously did. He said he's trying to streamline the process. I'd have zero problem putting a 4-jaw in a full blown turning center if that's what streamlines the job.

Why don't we tumble deburr the parts before we put them in the lathe? They can be nice and shiny before we start!

 

[gregormarwick]

If you're actually serious about streamlining this process, fuck the bandsaw and the machining centres out the door.

Subspindle turning centre with a bar magazine, varibore collet chuck in the main with a square collet, whatever collet chuck you prefer on the sub.

You'll be making 50 of these for every 1 that you're doing now.

 

[EmGo]

I understand what you're saying. I understood what he previously did. He said he's trying to streamline the process.

US, all talk no action. Even a little stinky shitbox factory in some village can figure this out

https://files.catbox.moe/llngg5.mp4

(although I think this is a dumb way to make his parts)

 

[Cole2534]

1" square might be a little big for 5C but pretty sure 16C goes that big.

1-5/8" is max, IIRC. 1" across the points is 1.414.

 

[TeachMePlease]

Tell your marketing geeks that "envelope" has an 'e' at the end.