what job is this for?

Belt sander and simple jig is what I would use. You can make a jig out of a large door hinge and some odd bits with a bolt for a stop. Should easily come in under your budget and it'll be quick.

If you did buy a milling machine with a vertical head like a drill press, there are a lot of ways to do it. The vises with tilt have already been mentioned, and I suggeat that you go to the ebay start page and put this in the search box: "45 degree milling cutters".

To save us all repeating ourselves you asked the same question in this thread some time ago.

One of these: **LINK**

add a simple jig to hold the part at the correct angle, with a stop to prevent grinding too much off

edited to add: use the belt in horizontal mode, not the disk. 

Edited By Dave S on 03/09/2021 16:35:16

This might give inspiration for a future tool and I’d guess one could 'knock up' a working occasional version out of timber. **LINK**

If you own a router then a cheap 45degree router bit about a tenner on amazon or ebay (might be able to do the job directly on steel that thin or) could be used to make an accurate angle on some timber to be lined with a flat piece of steel and presented to a cup wheel in a drill on stand.

pgk

What grade diamond lap did you get, a coarse one first will speed things up before final run on a file one. Or glue some wet & dry or silicon carbide paper to a piece of glass and use that first to remove most of the bulk of the metal.

I'll still stand by my suggestion from the other thread using a simple jig and your proxon even though you say things have changed

So simple jig from a bit of scrap, even the Proxxon will be able to mill the shallow 1mm pocket and drill a couple of holes that can be tapped

Simply hold the jig in a regular vice with the jig tilted at 45deg, screw one of your plates to it and mill or use a grinding bit to machine the upper edge to 45degrees, note the height of the mill or simply lock it in place. remove completed plate and screw on the next one repeat 63 times.

Edited By JasonB on 03/09/2021 17:14:53

Edited By JasonB on 03/09/2021 17:15:47

I have used the following tools in a Proxxon MF70 to cut exactly the chamfer you picture there, though mostly on bronze, brass and aluminium, not steel. The cutters are carbon steel, so will cut mild steel, but I'm uncertain what the lifespan will be if this is all they are used for cutting.

EtA: You can get HSS ones, though I can't find a UK supplier at the moment.

Edited By Bill Phinn on 03/09/2021 17:36:14

Well I think you need some “comprehension” practice

I was defending you !!

MichaelG.

If you have a Proxon mill, make up a holder, (just a steel (or maybe even a hardwood ) block with a simple clamp to hold the steel at 45 degrees, and fix to the table ( even in a vice (If a tilting one, just tip the vice up at 45 degrees and butt the steel plate against the body of the vice, and mill along the edge.

If no mill, but a fixed sanding disc is available, again make up a jig and use it to pass the plate across the disc. But you will have to control the depth of cut by hand, if you cannot rig up a fence along which to run the jig.

Once the fence is set in the right position to produce the required chamfer and narrow land, the remaining 63 should be easier to make.

Howard