Messages

11

General Mach Discussion / What 3d program to use to design and render furniture

« on: June 17, 2011, 06:36:12 AM »

hi all, I would really like to learn one package and one package only to design and render furniture, and somehow export to Mach3 or cambam, to cut out on a cnc machine. does anybody have any recommendations as to what 3d package you use for a similar or same purpose? any help would be appreciated. what i have in mind is that flat pack furniture you find cnc machines are able to cut out.

regards and thanks
Thys
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12

Mach4 General Discussion / Re: New people welcome !! Come in here and introduce your self!

« on: June 13, 2011, 02:02:13 AM »

hi tim, i sent you and possible solution, welcome by the way
Thys

13

General Mach Discussion / Re: y axis stalled? during cutting - please help

« on: June 07, 2011, 05:40:59 AM »

Hi Tweakie, you could be right, how would I fix that?

14

General Mach Discussion / y axis stalled? during cutting - please help

« on: June 07, 2011, 03:15:18 AM »

Morning all, please would you assist with some advice is possible

During a "profile" operation (using Mach 3 and cambam to produce the G code) cutting out a cheese board for a friend, it seems that my y axis stalled during cutting causing the router to turn in off the path which it was following resulting in a deep cut into my material piece. It is wierd in that it happend on the third pass going past the same spot twice already without an issue.

Some additional information is that I was cutting at 500 mm/min with a Metric 8 treaded rod with a pitch of 1.25mm, and at 4mm deep cuts per pass with a 6mm double fluted router cutter. I didn't feel that the router was under extraordinarily high load, or that the lead screw was dirty possibly causing the lead screw to exceed max torque and jam. I was wondering what the max operational rpm of the Keling KL23H286-508B stepper motor is as it was running at about 400rpm to give me a 500mm/min linear travel. This may be a little high, but I cant see the specs for this motor on the keling site.

There is a lot of detail in here so I understand if it's a bit of an issue to help, but if there some help out there, I would appreciate it.
ta
Thys

15

General Mach Discussion / Re: motors not turning - please help (newbie)

« on: June 07, 2011, 02:49:38 AM »

Hi Brian, thanks for the update, I was wondering where you went!
great, I am pleased to hear it all worked out.
good luck with the next project

16

General Mach Discussion / Please help with feed rates for MDF - burning the wood!!

« on: June 02, 2011, 03:49:54 AM »

Hi Gents, please could you assist in giving me the approximate spindle speeds, feed rates and depth of cut for cutting mdf. I am currently cutting with 5 and 6 mm cutters and it seems to be burning the wood.
My spindle speed is difficult to measure but is between 15000 and 25 000 rpm. My feed rate may be the problem as it is quite slow, 500mm / min = about 20ipm. I am cutting at a depth of about 4 mm per cut for both the 5mm end mill double fluted carbide cutter and 6mm double fluted router cutter.
Appreciate your help in advance
Thys

17

General Mach Discussion / Re: motors not turning - please help (newbie)

« on: June 02, 2011, 01:49:24 AM »

hi Brian, i agree with fastest1 (quite appropriate name for this topic) your motors tuning could be too fast. i have run the motors too fast and that does cause a horribe noise. It would make sense that when jogging at 30% there is no issue but at full speed it is an issue.
to sort this out i need to know what lead screw pitch you are using (TPi) or (TPmm) and the what speed you have set your motors at in the Config - motor tuning page in mach 3 software. I think 1/4 microsteps are fine for what I am using but I am sure it differs from person to person and depends on the type of method you have used to move the move the axees. we are getting closer, so don't give up hope.
regards
Thys

18

General Mach Discussion / Re: motors not turning - please help (newbie)

« on: June 01, 2011, 10:32:38 AM »

hi brian, hope you come right tonight. Any projects, planned or completed.
regards
Thys

19

Mach4 General Discussion / Re: New people welcome !! Come in here and introduce your self!

« on: June 01, 2011, 02:28:39 AM »

thanks Tweakie, will give it a go
Thys

20

Mach4 General Discussion / Re: New people welcome !! Come in here and introduce your self!

« on: June 01, 2011, 02:00:01 AM »

morning all, I'm Thys, only been here for a few weeks. I am trying to post a few pics of my rig. now the silly question, how does one post a pic.