Thinking of jumping into CNC milling. How to start ?

[SparkyLabs]

There will also be plenty of cutting down of potting boxes, the bigger they get the taller they get and this can become a problem as what I need are more like trays so the only thing I can do it to cut down existing boxes.

[magicniner]

what I need are more like trays so the only thing I can do it to cut down existing boxes.

That sounds like a job for a bandsaw with a suitable guide to get them within a couple of millimetres and a quick pass with the mill to finish ;-)

[John S]

Might pay to have a look at one of the blue A3 style laser cutters on Ebay for about £1500

I used to mill boxes out for the division master style hand held controllers and one case too about 15 minutes with some rejects where the plastic had welded to the cutter and ruined the box.

I now do these on the laser in about 2 minutes with no rejects

[SparkyLabs]

Do you have any links to the laser cutter. What are the limitations of laser if any ? I could of course end up cutting metal too. With plastic I am hoping that a nice sharp cutter not too much speed will prevent melthing. I've not had any problems hand milling with melting, just the positional accuracy that take so long to get right that it would not work for repeats.

[SparkyLabs]

That sounds like a job for a bandsaw with a suitable guide to get them within a couple of millimetres and a quick pass with the mill to finish ;-)

Well I am based from home so don't have room to set up a complete machine shop. I need a bit of a one size fits all machine, granted some jobs are not the most suited but if they can be carried out with no severe downsides then that is fine.

[magicniner]

I have a bandsaw that's just 24" tall with an 18" x 12" footprint that can be used on a Machine Mart bench grinder stand, it has a plethora of uses, all of which save time and some of which save material ;-)

[SparkyLabs]

Well here and now I need to be able to first cut holes and slots and other shapes in the side of cast aluminium and ABS boxes. As I would not be able to afford any further machinery after that I'll have to use the mill for the box cutting down. Of course large quantities can be done by the box manufacrurer if I am not equiped.

[Clive S]

I would suggest that you try and contact some one in your area to see a mill working so you will have some idea as to what is involved before you start spending the hard earned dosh.

I for one would be more than happy to show you if you are ever up here (Stockport)

[SparkyLabs]

Well I also have a full time job where large CNC machinery is used. I'm not sure how specific the workflow is to various machines and how much is a standard process. I do 3D CAD with no problem as that is the day job, it's really a case of how I take that data and get it into a program that controls the machine.

I know the proxxon software allows you to import a DXF, that is something I can generate with no problems.