Shaper Attachments

[bcall2043]

I just about beat this photo thing almost................. Notice my $1 chip pan just pinched on table support...................#6 copy a gear ...............samuel

Samuel,

I liked your idea for a chip catcher so much I picked up a cookie baking tray at a yard sale last weekend. My shaper drips oil on the floor from the ram ways and I have been thinking about putting a tray under it that is sold at Wally World for use when changing your motor oil. Just a bigger version of your baking tray idea. It would keep the oil off the garage floor and catch a few chips also.

How are you grinding the form tool for cutting the gear teeth with your shaper?

Are you using the formula for the botton tool as Ivan Law shows it in his book "Gears and Gear Cutting", grinding it freehand to match the gear you are copying, or another method?

Thanks, Benny

 

[GK1918]

Shaper tool forming

Hi Benny no as far as the book work its old school. With a known gear just using a blue sharpie and
scribe on a hss blank. Most gear jobs are about missing teeth in which we vise and sandwich a blank
with the broken gear on the ram side then manually feed in to the gear making sure the cutting tool
fits the profile then start on the blank till the tool kisses the root of the broken gear. And then comes
a time for a large gear. We then simply cut a piece out of the broken one and machine that section,
and braze the new section into the cutout of the gear. In short I sold my Bridgeport 25 yrs ago,
and I cant afford or find another , so we have to make do with what we got. I should have mentioned
a large broken gear like a large lathe bull gear, we turn the blank on a lathe (for the thickness and
circumferance) measure and cut the blank it will look like a quardrant<(spelling?) Just remember on
the broken one to cut a couple more teeth so the shaper can follow that. You are really just tracing
the pattern pitches and all that complex math easier to do than put into words. Also large blanks
are billed into the job and whats left goes in the stock. sam

 

[bcall2043]

Re: Shaper tool forming

............. Most gear jobs are about missing teeth in which we vise and sandwich a blank
with the broken gear on the ram side then manually feed in to the gear making sure the cutting tool
fits the profile then start on the blank till the tool kisses the root of the broken gear.................. You are really just tracing
the pattern pitches and all that complex math easier to do than put into words............ sam

Why didn't I think of that! I understand how you did it now.

The guy I bought my shaper from had a machine shop up in Maine. He did repair and consumable parts for the wood industry and anyone else that walked into his shop. He machined a lot of neat splines, keys, grooves and other things on it. He only sold the shaper to me because he got a bigger one. I should have spent more time with him and his "how to's".

Thanks Samuel for the reply and training.

Benny

 

[laddy]

Very Nice!! I have the first year version of the Atlas shaper. It has no Box support from underneath. I have to figure out a modification for that. I have had alot of fun with the shaper maker gears and splines. No mods to date. You did a fine job. Also haven't mastered posting a photo. Thanks Fred