Thread: Disc Brake Conversion.

Originally Posted by TJWA

I considered it, but you would have no way of putting the disc on.

Surely that would be dependant upon the manner that the rotor was mounted to the hub.

If the rotor had a ring with the threaded holes and that mated with counter sunk holes in the hub face: the mounting plate could be fitted with the calliper attached; the rotor (with the ring inside) is then offered into the caliper and then the hub is mounted onto the stub axle; the rotor is then fixed to the hub.

There is always a solution!

OK call me an IDIOT , I thought would print the tracing out & make a templet as i found some alloy sheet that way i would always have it if someone wanted to do it they could borrow it..
Well this is what happend..
Now remember i'm pretty useless with the computer..





Now that can't be the correct size surely...
OK whats next what do i do....?????????

Go measure the mount points on the hub to see if the sizes are off, and adjust accordingly????

Originally Posted by jakeslouw

Go measure the mount points on the hub to see if the sizes are off, and adjust accordingly????

Be buggered if i'm going to take the wheel & drum & all off just measure it..
We have to use the car as a everyday car at the moment thanks to the CRAPOYTA dieing again...

Originally Posted by banjo

OK call me an IDIOT , I thought would print the tracing out & make a templet as i found some alloy sheet that way i would always have it if someone wanted to do it they could borrow it..
Well this is what happend..
<snip>
Now that can't be the correct size surely...
OK whats next what do i do....?????????

Banjo

I would be getting someone to convert the template to a CAD drawing.

This way the CAD file can be taken to an engineering firm to laser cut the profile and centre hole. Some places can even bore the holes in the correct places from the CAD file.

It also means that you can send the file across the planet at the press of a button.

BTW. A couple of points of clarification.

• Does the flat on the plate mate with the bottom of the housing?
• I am assuming that the calliper sits at about 9.00 to 12.00 with 3.00 the front of the vehicle (using the hours of a clock)?

Hey Jase,

you cant print it as a template because the printer is not going to scale the picture exactly to the measurements of the original. I had this problem once before with a template for motorcycle brackets. You need to use a CAD program to make the template if you want to print it out (I think).

I would suggest you use the measurements from the picture and a set of french curves and a "compass" to recreate the template on your sheet metal. Its old-school but thats the cheapest/easiest way if, like me, you are not a computer guru.

For my motorbike brackets I used a ruler held up to the computer screen to make the template for printing; but that was basic straight lines so much easier and less critical than this thing.

cheers,

Adam

Originally Posted by akelly

Hey Jase,

you cant print it as a template because the printer is not going to scale the picture exactly to the measurements of the original. I had this problem once before with a template for motorcycle brackets. You need to use a CAD program to make the template if you want to print it out (I think).

I would suggest you use the measurements from the picture and a set of french curves and a "compass" to recreate the template on your sheet metal. Its old-school but thats the cheapest/easiest way if, like me, you are not a computer guru.

For my motorbike brackets I used a ruler held up to the computer screen to make the template for printing; but that was basic straight lines so much easier and less critical than this thing.

cheers,

Adam

Hows your leg healing,Do you think you will need much more physio.....

Originally Posted by akelly

Hey Jase,

you cant print it as a template because the printer is not going to scale the picture exactly to the measurements of the original.
<snip>
For my motorbike brackets I used a ruler held up to the computer screen to make the template for printing; but that was basic straight lines so much easier and less critical than this thing.

cheers,
Adam

Adam

Your statements are generally correct, however the measuring from the screen is also a problem because the computer spreads the image over the available screen and resolution setting.

Someone using an old 14" screen will get a very different object to someone using a 17" or 19" monitor.

The CAD drawing is really the only way to go, so adding the diameters of all the circles: inner hole; stub axle bolt hole (centre)*; the general outline of the mounting plate; and the circle that makes centres the calliper mounting bolts. All these should be measured from the axle centre!

Diana

* You don't really need to measure the centres between the stub axle mounting bolts, as this is calculated by dividing the circumference by six. What is really important is to clearly define the centre of one bolt from which the others should be calculated.