Problems in 2d cuts
 

Does anyone know why I am getting this sort of cuts?

I upgraded my Z with linear slides and yet face this problem??

it is solved to a large extent - but

is it the curves in the artwork, or do I need to use a different post processor,

or is it that I need to convert the curves to some sort of continuous curves???

or do i need a different Mach setting???

please help me.

RGDS
Irfan

Not too sure what is going on there. I seemed to have that problem at one time but it slips my memory.

What software are you using? Sometimes when I import stuff from Autocad into Aspire, Autocad will creat a bunch of little nodes around curves. I then have to have Aspire smooth the curves with one of its features..

But I think your problem lies in Mach if that is what you are using. All your curves lines are just too symmetrical to be a hardware problem, at least that is what I see. Seems like you need to check your "CV" settings in mach.

I will keep on thinking about what might be the prob.

James

May be CV setting in mach - i am thinking of same thing James, what is your CV setting?

I am using Artcam, what utility do you use in Aspire for curve fixing? yes the curve was imported from Acad.

Irfan, I had the same thing on the little disks that I did recently.It also baffeled me I eventually enlarged the drawing on the screen of my dxf file and saw that it was actually the drawing itself that had those ridges on them, it is not your MM that is the problem but the actual vectors that the toolpath follows.Enlarge that same drawing a couple of times where it gives you the rough cut and see if it is that.

Thanks Hennie - i will look into it soon

I noticed this sometimes when using a 12mm straight cutter and pushing it to cut 2mm per pass at a high feedrate. My whole table starts to vibrate and it seems that the router on the z-slide starts to oscillate. When I slow things down and take a 1 to 1.5mm deep cut it dissapears.

Irfan, did you notice that the rough cut is only when the X and Y motors run together to make a curve? If so, then see Rough Cut on Diagonal

Can you please post a pic of your settings for Mach3, I like to see how your CV settings are.

Irfan,

Try to spline vectors and delete extra nodes.

one more of the Jali's

Nice Work Buddy, keep going..............

I think I need to visit India...looks like you have some nice wood available. Nice going

Irfan, Very Very Nice. :)

As always , very good work. Keep them coming I really enjoy looking at them.

Ah Kobus, thats pieces of teak wood joined together to form a plank -

heath - vishnu and Leo - thanks for the good words !

I like it when you do those jobs, make me want to make some doors with them:)good work Irfan.We need to win the lotto to afford teak in SA.

Nice work Irfan. Did you find the reason for the rough cuts you mentioned with the earlier pictures?

G' I seem to have not set my machine upto the mark - i need to look into it further,

meanwhile does anyone have the model 99474(running horse) from 3d model club, it was given out last year as a free sample, the one I have has a corrupted zip file

show us a example if you can

http://www.3dmodelclub.com/component...0596437283.jpg

this one oops its 99473

Irfan,

You have mail.

some more jali shapes
 

here is what we did with the jali shapes - its a pulpit for a mosque . yet to receive polishing - will have a matt finish.

Beautiful!

Magic, but I still want to know how to make that WHITE stuff. If it is a trade secret so be it....but PM me then:D

its called white metal paste here and gets mixed with a hardner (gp resin+chalk powder)d

Irfan, what is the purpose of the paste? Would you show us the finished?

the paste is the white color you look as a inlay in the v carving on the jali

Interesting, does it contain metal? or it is how they are commonly known as?

Some interesting reading regarding inlays:

http://www.woodsmith.com/issues/173/...n-epoxy-inlay/

Thanks Milosh. Its really interesting read. I can see modern tech slowly creeps into wood working procedure.

good work.
whats the tool u used for this work.imean carbide or MS and its size and type(engraving tip or endmill).
and the site u posted before craftsmanspace.com providing Autocad drawing.how did u convert that in to Gcode.

GCode is convert with the use of a CAM software program.

program like....?
i know mastercam.but its bit difficult to operate.is there any tool which is for hobby ppl level with good features

some more of jali work
 

some more of the jali work, this time on 30 mm thick mdf, sure the cutting bit makes a racket now!

G' how deep can you drive a 6mm 2 flute endmill in mdf and at what feed rate? i am currently going with 6mm deep per pass at around 2500mm/min

4th axis
 

and here is what I have to build my 4th axis attachment :)

Irfan, I think my son would do 4 passes to get through 30mm MDF with a 6mm bit. The speed for that job sounds about right.

On doing 4 passes, the trick is to do the 4th (last) pass with a slightly smaller offset, so that it cleans the marks left by the previous passes. Some guys do the first passes climb cut direction and the last pass conventional to get the same clean-up effect.

Irfan, what is your cv setting in mach? why don`t you get rounded corners at that beautyful jali work? Please tell me your secret...thanks for the mail.

still waiting for your reply reading the type of G-code generation program you guys use.
iam quite impressed with the work done on the MDF.

Looks like that 4th axis is on it's way.

How would you handle the potential backlash?