anyone nead any casting made for old bikes

[kdx 175]

ok looks ok but how come they brake there only a cover 

[Hoony]

I would assume they break when chain derails

[firko]

ok looks ok but how come they brake there only a cover   

Because they're made of paper thin pissy magnesium that often breaks when you crash out or the chain comes off. I've never owned a TM125 but I broke a clutch cover on a mates TM125 back in the day and I had a hard time getting it welded. I eventually got it done by a mate at QANTAS but how many ended up getting bogged up or thrown in the garbage because they couldn't get them welded?

[Lozza]

I would assume they break when chain derails

nooooo it's from all the horse powahs in the TM trying to escape.

[kdx 175]

I need a old one im not cutting up a nos one got lots of bog and glue

[TM BILL]

There must be loads of old ones available over there  i didn't realise you had to cut them up .

[kdx 175]

when cast one it shrikes so got to cut it up glue then bog paint sand  to allow for that

[Lozza]

There must be loads of old ones available over there  i didn't realise you had to cut them up .

Russell can correct me, Bill the Suzuki one looks die cast, that has a 2 piece die that comes apart easy. Sand cast items need taper/draught on them to remove them from the sand when the impression is made. With straight sides and  the imprssion in the sand would fall apart when the item was removed, then there is the shrinkage.

[kdx 175]

lozzas rite even die cast needs taper but less than sand cast coss I do it all by hand the hole thing is a big shit fite until you get it rite then you make epoxy patens I get sum photo of patens 

[kdx 175]

[asasin]

not long now and you will just print one  Mate of mine is making silencers out of printed carbon stuff , very cool and better than a machined one as you can make hollows etc you cant with machining .The machine he uses is about $750 k worth so a bit out of most of our pockets reach still everything comes down eventually

[FourstrokeForever]

I can hardly wait until those 3D printers become main stream and I can go to a "superstore" to buy one. I've heard there are already people making guns that actually work with them.... the possibilities are endless....

[topari]

I can hardly wait until those 3D printers become main stream and I can go to a "superstore" to buy one. I've heard there are already people making guns that actually work with them.... the possibilities are endless....

At this stage the molds could be readily made with a 3d printer. Some of the US guys have used MDF cut in layers to make molds using 3d printers.

[flower pot racing]

You need the best pattern possible.  NOS is the way to go.

Then just scan the part to capture the 3D geometry.  Once you have the file scale it up, make the pattern and away you go!!!!!

There is an app for $3 that turns your phone into a hand held scanner and the data is good enough to use (we have done it)
Basic but ok.  As you would expect for $3... The $3 one was the flash one.  $0.99 will get you a basic app.

To do the job properly use professionals.

At the bottom end of the scale you can buy a 3D printer for £700 from a local electronics shop (Maplins) here in the UK.  On ebay basic ones start at about £1000.  They are no very good (but getting better at the time)

To do anything serious use professionals.  You don't have to be buy your own, there is a Whole Industry out there waiting to help you.  (and it doesn't have to be that expensive)

[flower pot racing]

I can hardly wait until those 3D printers become main stream and I can go to a "superstore" to buy one. I've heard there are already people making guns that actually work with them.... the possibilities are endless....

At this stage the molds could be readily made with a 3d printer. Some of the US guys have used MDF cut in layers to make molds using 3d printers.

It's a shame that the gun gets all the headlines.  I would not recommend doing it as it is so poor it is likely to blow your hand off.

additive manufacture is a very interesting tool that will change our lives.  It's an engineering revolution that we are only just starting to understand to try and extract the benefits.