Slot or "Gasket Slot" in the side of Square Piece?

[Electwoodworks]

I am so unsure of what to call what I am asking that I couldn't do a very good search - My apologies if there is a thread on here..

The picture attached is sitting on a round jar lid, so it may appear round as well. However, the piece with the side slot is a SQUARE lid, hence the problem.

Any advice on gutting a groove into the side of a square? I do have a couple of single thread bits, but I can't figure out how to ask the Tool Path thread to produce a square pattern instead of the circle.

It's a simple straight forward deal so far:

One pocket tool path to clear out the space between the lid and inner square
One profile tool path to cut the lid tops away from the stock.

I would like to do a threaded path (or any path that works) the cut the slot in the side.

Any advice is so appreciated.
Thank you,
Joe

[adze_cnc]

You will need to construct a vector such that your fly-cutter (or whatever other bit you will be using) starts outside the place to be cut; cuts around the circle; exits away from the material.

See this thread for a similar problem that needs a dovetail bit. This post within that thread is especially relevant.

[Tex_Lawrence]

... I would like to do a threaded path (or any path that works) the cut the slot in the side....

Joe, I have used a keyhole bit to do that in a different kind of project. You have to start off the part and be careful about the depth of cut, because of the part of the bit that cuts the slot will take off part of your lid.

[Electwoodworks]

Thank you both very much!

[Electwoodworks]

One more question, please. Am I asking y'all how to make an undercut, or better asked - what is this process of making a side cut at a specific height off of the table?

I am travelling so I tried to draw a picture, but it's embarrassingly bad!!

I set the job up as top of the lid facing the table so that the first path (pocket) removes all the material we want to form the inner square of the lid. After the pocket, there is about .25" removed all around the remaining wood. This is about .5" depth into the over all .75" stock.

Second path (profile) makes the cuts around the outer / larger rounded square to cut the tops free from the stock. .75" profile cut, with a couple tabs for stability.

I am guessing between the first and second paths currently is where we'll be working to add the slotting path, or whatever it is called - that's what I'd like to know the name of, please.

Thank you for your patience.

[Tex_Lawrence]

One more question, please. Am I asking y'all how to make an undercut, or better asked - what is this process of making a side cut at a specific height off of the table?

Joe, you're probably on the right path, but you might be (are) asking too much without a drawing or rendering. I could make one, but I'm a bit busy right now.

[Electwoodworks]

10/4.
I will post some screen shots when I get home Friday.
I travel Mon-Fri each week for my real job, and I keep threatening to being the Vectric computer with me.
Might have to start that.

[Electwoodworks]

One more question, please. Am I asking y'all how to make an undercut, or better asked - what is this process of making a side cut at a specific height off of the table?

Joe, you're probably on the right path, but you might be (are) asking too much without a drawing or rendering. I could make one, but I'm a bit busy right now.

I am sorry it took so long to get pictures for (hopefully) some help. Better late than never I guess.

This is the first time I'll post pictures as a means of asking for help so if I need more / less pics, please let me know.

I'll put screen shots of the two toolpaths I have so far

Then will put a pic of the bit we purchased

Then will put a pic of the slot or edge cut or whatever it's called (the lid I am trying to duplicate). The slot/edge goes all the way around the square.

I think what I need to do is keep the pocket path to cut my "gap" between the outside lip and inside, then )where I need the help from y'all please) figure out how to use that side-cutting bit to go around the inside square to cut the slot, then finish with the profile cut to get each lid finished. I think ?
Our end goal is to have a lid with the pocket toolpath wide enough to allow to slip onto the jar top, and the slot / edge cut is so we can put a gasket in there so that we can have a nice tight seal inside the jar.
Thank you all so much for your patience - I really hope to be able to repay with something I've learned sooner or later.

[MiloScott]

I don't think the bits you are showing will do what you are after.

It looks like a "slot cutter" would work for you.

You will have to clear out enough material around the step to get the cutter to fit, including the lead-in, lead-out.

[Electwoodworks]

How do I create a "lead out" and "lead in"?
That's my biggest miss do far is knowing how to ask my CNC to:
Go down a specific amount on Z
Over into the piece
Cut around
Back out of the slot

[Tex_Lawrence]

How do I create a "lead out" and "lead in"?

Its part of your profile toolpath.

[Electwoodworks]

How do I create a "lead out" and "lead in"?

Its part of your profile toolpath.

10-4 thank you so much. I figured it was a matter of not knowing the name of it.

[adze_cnc]

…and leads only show if you the advanced options box checked.

[Electwoodworks]

I won't have the room to use the suggested slot cutter and will have to try to make the little cutter thread bit I have work.
Since I can't select a thread bit in the profile tool path, do I need to create a dummy end mill for the thread bit?
If so, and if someone would be kind enough to help me understand how to do it or a set of instructions, I'll appreciate it.

[sawmiller]

maybe this will help