Engine-turned sprocket

[necessaryevil]

I had an old BMX sprocket laying around so I took it to work and engine turned the face of it. This was my first attempt at it and I'm pretty happy, it sure makes the bfk a lot better looking.

 

[schwinnmesa]

Very Cool!!! I'm lovin' the sprocket and that black Sting-ray is tight!

 

[Firewalker]

Nice! very cool! everybody here keeps pushing the bar alittle higher.

FW

 

[Anonymous]

can you elaborate on how you did that? I think that pattern would look good on a frame filler panel.

 

[necessaryevil]

I'm blessed with having a machine shop at my disposal, modified a 1inch end mill and just played with spacing until I was happy. You could probally do it with a cordless drill or table drill press, with some kind of abrasive bit. It's basically just overlapping swirls.

 

[sensor]

the way ive always done it is take a wooden dowel put it into a drill press and go to town(im sure itd work with a hand held drill also.......probably just alittle harder to get even spacing)

it does improve the looks alot on that bfk :mrgreen:

 

[Anonymous]

for aluminum a wooden dowel sounds do-able. for steel I'd have to see it being done.
maybe a cheap router bit mounted in my drill press.

 

[ricksterr1221]

i Like that. I like that bike too, Wish id'a had 80 bucks when they came out. If i had one, Id run a 100 spoke rim out front with a
white wall. =] Love it.

 

[Bunbury]

I've seen "abrasive rods" used for engine turning (I believe McMaster-Carr supplies them.) They're stiff rubber dowels impregnated with abrasive, sort of like pencil erasers.

I've done some engine turning on a drill press with a simple jig made from scrap wood to index the spacing.

 

[Dangler]

Pretty cool lookin' :wink:

 

[GTCOMA]

That sprocket looks great. It gives that stingray a whole new look. Did you machine both sides?
Some body needs to do that to one of these giant exercise bike sprockets

 

[necessaryevil]

I've seen "abrasive rods" used for engine turning (I believe McMaster-Carr supplies them.) They're stiff rubber dowels impregnated with abrasive, sort of like pencil erasers.

I've done some engine turning on a drill press with a simple jig made from scrap wood to index the spacing.

I was looking at one of these but just decided to make an endmill for the job, if anyone has used this tool, let us know if it worked good. The sprocket was all black so I left the back painted to match the stingray. I'm going to try turning a curved surface next, maybe some engine-turned fenders, or headlight, or....

 

[karfer67]

as sensor knows i am a total sucker for engine turned stuff so that is awsome. i really have to get of my u know what and start doing some new bikes