Surfacing Spoiler board

[Christian Knuell]

Hi,

what bit am i best getting here in the uk and how do i create the toolpath for such a cut and given tool , I'm using mdf for a sacrifice board.

for MDF almost any tool will work - it is very easy to machine.
Just try to get a rather large diameter to save time - it also has the benefit (or disadvantage depending on how you see it) that you'll immediately see if your spindle is aligned perfectly perpendicular in relation to the machine bed. If the tool leaves palpable marks the spindle should be aligned until the marks disappear.

Creating the toolpath is simple: just draw a rectangle of the required size and create a pocketing operation. You can e.g. do this with Estlcam:

(Pocketing is explained at 4:52)


Christian

[njhussey]

For a surfacing cutter try this...http://www.wealdentool.com/acatalog/..._Wing_250.html

Cambam can be used (40 use, i.e openings so if you open it and leave your PC on all the time you'll only ever use one trial) as a trial and as Komatis says draw a rectangle the size of your spoil board and use a pocket function.

[mekanik]

Morning Neil
The link doesn't work for me.
Glad to see your CNC up & running.
Regards
Mike

[njhussey]

HI Mike, I'm glad to have it running (and making a little bit of money too!!!) now.....just want to crack on and finish it off now. The link was from a post Jazz did on my build log...

Wide cutter will give you perfect finish if trammed correct and take fraction of the time.

Wouldn't get a fly cutter these spindles don't like them. Get one of these with indexed tips http://www.wealdentool.com/acatalog/...nning_928.html

Or if on budget one of these. http://www.wealdentool.com/acatalog/..._Wing_250.html

[Clive S]

This is the one I use http://www.wealdentool.com/acatalog/..._Wing_250.html

[CommanderKenyon]

Thanks For repies everybody ,

I've ordered a bit to get me started http://www.wealdentool.com/acatalog/..._Wing_250.html

the Video was very helpful Christian Thnx


Ill have a look at fusion and I've heard a few people use cambam good tip about the 40 openings if i am going to use a piece of software i don't mind paying , its just a pain when you don't take to software after you forked out for it

in to motion control I've been building a large delta 3d Printer Reciently and have a few smoothie boards here

http://smoothieware.org/smoothieboard

i have thought about putting one of those on my 6040 rather than use the std breakout board in the blue box, it does seem to work but many say the electronics can cause problems, I'm hoping the drivers and steppers will be ok in mine for now they are

leadshine microstep driversdm542-500
and
sumtor nema 23 57hs7630b4d8 1.8deg 3amp

it has a 1.5kw spindle that seems reasonable build quality ( but time will tell i guess)


i have replaced all the stepper wiring and cooling hoses as they were junk and had bad connections



thanks again for replys people hopefully i will get my first cuts done soon

mr.k