Thread: Shaper Chip question

PLEASE make a short video - I'd love to see these chips being made!
Joe

Normal.

Gees Ewan, why don't you flatten them out and put them back on the rack as stock.

Phil

Same here. I think the compression hypothesis is reasonable. I can't think of another one.

Explained very simply here:


http://me.emu.edu.tr/me364/ME364_cutting_mechanics.pdf

Just like everyone else said it's normal. You will get some nice curls, but not long lengths.

Dave

Originally Posted by Col2310

Explained very simply here:

Very clear and useful document. Thanks Col.

PS: More good stuff here, especially section 5: http://me.emu.edu.tr/me364/lecnotes.html

Originally Posted by jhovel

PLEASE make a short video - I'd love to see these chips being made!
Joe

O.k, it was soooooo hard to sacrifice a bit of steel just for the sake of using the shaper but..........heck what am i talking about? It was easy....

Keen eyed veiwers may notice the table dipping and then springing back up at the end of the cut. I really need to make the support bolts better, bigger washers etc as the support was pushed down by the force involved. Luckily the chips are heavy enough not to go too far. These things won't just ruin your shoes, they will ruin your feet too

[ame="http://www.youtube.com/watch?v=GfoQflPnr7Q"]24" Queen City shaper 1/4" deep cut - YouTube[/ame]

I'm glad the compression of the chips is normal. I'm about to read the link Col supplied.

Mmmmmm chippies......

Originally Posted by Col2310

Explained very simply here:


http://me.emu.edu.tr/me364/ME364_cutting_mechanics.pdf

Thank you Col.
That makes it so easy to understand and should be read by all!

Nice vid once again Ewan.
Was the work piece hot when you picked it up?
Also, do you move your vice around for that cut? I mean do you rotate it 90 degrees so the cut was along the length of the piece?

Ben

Obviously you did move the vice, but can you cut the shorter face of the work piece?

Originally Posted by bwal74

Nice vid once again Ewan.
Was the work piece hot when you picked it up?
Also, do you move your vice around for that cut? I mean do you rotate it 90 degrees so the cut was along the length of the piece?

Ben

Obviously you did move the vice, but can you cut the shorter face of the work piece?

Hi Ben,
The piece was not hot at all, the chips get pretty hot, as you can tell by the colour, but i think the vice is a big enough heat sink for the piece itself.
Yes my vice rotates, i have left it as shown for most of my cuts so far, not sure if this is "correct" technique or not, for instance the 11" square piece of plate i surfaced (the one the chips are sitting on in the pic) could have been done either way, but i did it with the vice as it is above.

Thanks Ewan, very impressive!
Joe

Originally Posted by Ueee

Hi Ben,
The piece was not hot at all, the chips get pretty hot, as you can tell by the colour, but i think the vice is a big enough heat sink for the piece itself.
Yes my vice rotates, i have left it as shown for most of my cuts so far, not sure if this is "correct" technique or not, for instance the 11" square piece of plate i surfaced (the one the chips are sitting on in the pic) could have been done either way, but i did it with the vice as it is above.

Serious bit of chip work Ewan. You are using the vice in the right orientation for a shaper. Please don't ask me whyas I will have to make something up.

Phil

Because it's more efficient to cut along the axis of the workpiece. It's not spelled out like that in the TAFE book, but I believe that's the inference. Imagine cutting that same piece the other way, with a lot of very short strokes. It would take longer and be harder on the machine. If the part is squarish it doesn't matter.

PS: I guess you could put the part longways but the vice the other way. If you were adventurous.