knurling an edge

hi how would you go about knurling an edge the item is a side wheel for a rifle scope its made out of ally 6082 grade just need to do the edge of the rim.............

many thanks mike

Not quite sure what you mean by the edge? do you mean around the outward face of the wheel or on say a 45 deg chamfer on the edge of the wheel.

A sketch might be useful to explain and what diameter, I'm guessing 2 in or so ?

Just plunge in with a straight knurl then chamfer both edges at 45 gregrees to take the spelch off

Sorry can't help, you don't have a profile.

<Sorry can't help, you don't have a profile.>

Whats going on here? Mike needs some help not comment on how he runs his life.

Derry.

thanks for that derry, its a wheel 130ish mm dia with a rim like a fly wheel etc i dont want to knurl the wide part just the 2mm edge/rim/face il try and get a pic up on my album abit later then that may make things clearer =)

Think I know what you want,,,, mount the wheel in a three jaw chuck, gripped in the outside jaws, if your chuck is big enough as the wheel seems to be about 5" diameter, and use a single straight knurling wheel mounted parrallel (spelling?) ie in line with the lathe bed and on centre height, slow speed and lock the saddle, feed in with the topslide.

Hope it helps!!!

Peter

Or even the inside jaws if you can grip the insde of the rim. You really need to give some support to the back of the wheel for the knurl to press against.  That seeems an awfully big wheel for a rifle sight.. 130 mm dia!

Edited By Aestus57 on 10/04/2012 16:05:09

Also do you actually want a knurl as all the ones on the net seem to have just a textured surface, if its anything like this then a rotary table or dividing head on the mill and plunge with the edge of an end mill.

J

Thanks for the link Jason, that explains the size !!!

hi thanks to aestus57 makes sence and jason i did think of doing it like that but i just fancied a knurled edge just for something for the thumb to grip onto plus il have more room for my numbers to go on =) theres so many differant designs out there i supose its just down to personal preferance

many thanks for your input

mike

Hi Mike

I think I know what you mean you want a nice knurl aroung the edge of the part instead of a sharp 90 degrees angle I aquired one of these tools many years ago to do this function.and though do not agree with guns would be willing to to help you if it is only for clay or target shooting.

Bob

hi bob only for ft shooting basicly steel discs between 8 and 55yds no animals or anything im a lover of them not a hurter =)

Mike you will know me, i make more than everyone else put together. Since you ask about the knurl i suppose you mean like mine. Which scope?

Single point knurl wont work, secondly too much flex using a three jaw especially after it machined.

the scope is a falcon ft50 just got it today now just got to finish up the wheel then a little bit of engraveing i want done on it and the jobs a gooden =)

Done around 60 of them in two years not very common yet.

Heres 27 basic type three weeks ago.

Day 1 http://i1140.photobucket.com/albums/n563/Jonhareng/Jons%20machining/T5020offInitialswarf.jpg

Day 2 http://i1140.photobucket.com/albums/n563/Jonhareng/Jons%20machining/T502ndpile.jpg

Turned in to 22 here, other 5 gone. http://pic20.picturetrail.com/VOL15/728921/1243489/401567390.jpg

Got three T50 here Mick, two Marchs, IOR, Tasco.

hehe the swarf looks just like my flats spare room look like some lovley work there mines done now apart from the knurl on the edge but that not a major thing so....... must say tho i am proud of it tho