1995 Raleigh Torus with a little bit of anodising.
- Thread starter Rampage
- Start date
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Re:
The forks should be obvious now, so I'll go into more detail.
A piece of the aluminium bar was anodised first to check it was ok. Nothing worse than making loads of time consuming parts and finding out it doesn't anodise well.
Dropouts:
The bar was cut into shorter sections and off set into a lathe chuck to make the section that inserts into the leg.
The forks should be obvious now, so I'll go into more detail.
A piece of the aluminium bar was anodised first to check it was ok. Nothing worse than making loads of time consuming parts and finding out it doesn't anodise well.
Dropouts:
The bar was cut into shorter sections and off set into a lathe chuck to make the section that inserts into the leg.
The part had an internal thread put in the end and was then bolted to a rotisserie on a milling machine. The excess material was removed to just leave the thin blade for the dropout.
The part was fitted into a jig (actually the brake boss jig for these same forks, there's a reason I use M8 thread for everything!) to cut away more material.
The part was fitted into a jig (actually the brake boss jig for these same forks, there's a reason I use M8 thread for everything!) to cut away more material.
Brake bosses:
16mm bar was reduced to 14.15mm in the lathe, a last minute design change meant I used a 16 degree taper so that the taper stopped exactly lever with the front of the fork legs.
They were drilled at various sizes and then threaded for the brake stud. The spring plate was a pair I had left over from some laser cutting I did a while ago, I think they are Cat Fhance replicas.
A jig was made for the 28.6mm cut-out where it fits on the leg, I don't have a 28.6mm cutter so it was done on the lathe with a boring bar. The one in the picture is a half-finished scrap piece. Both of the final brake bosses had 3.2mm cobalt drill bits snapped off in them during manufacture!
In the next few days I'll post pictures of the crown jig, tubing and anodising.
16mm bar was reduced to 14.15mm in the lathe, a last minute design change meant I used a 16 degree taper so that the taper stopped exactly lever with the front of the fork legs.
They were drilled at various sizes and then threaded for the brake stud. The spring plate was a pair I had left over from some laser cutting I did a while ago, I think they are Cat Fhance replicas.
A jig was made for the 28.6mm cut-out where it fits on the leg, I don't have a 28.6mm cutter so it was done on the lathe with a boring bar. The one in the picture is a half-finished scrap piece. Both of the final brake bosses had 3.2mm cobalt drill bits snapped off in them during manufacture!
In the next few days I'll post pictures of the crown jig, tubing and anodising.
Jamis Diablo
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This is some proper craftmanship, I'm really jealous I don't have acces to this kind of machines.
Thanks.
I've been meaning to make an X-Lite L168 style stem as I've been looking for one for years.
But I had another idea for a stem, it'll be square to easily hold in a vice and to stop it rolling off the workbench and will have external butting to reduce weight....
I've been meaning to make an X-Lite L168 style stem as I've been looking for one for years.
But I had another idea for a stem, it'll be square to easily hold in a vice and to stop it rolling off the workbench and will have external butting to reduce weight....
