Member postings for Phil L

Hi all

If you want a list of G codes and M codes work shop safe they are listed in the newer zeus book metric revision back 3 or four pages.

phil

Hi Mark c

thanks for the post, at work so will have a good look tonight.

i think i have an old version of solid works kicking around.

thanks Phil

Fantastic work thank you for the info will give it a look

Thanks again

Phil

Ah it seems i see a light.

2d vs 3d drawings - modeling not machining the parts cutter paths, as most of the parts above are turned parts standard 2 axis work. But still would like some advise about time scale to become ok with cad have the turbo cad course they did a few years back or is there a good on line one. And how long does it take a part timer to do?

Phil

Edited By Phil L on 27/10/2013 18:09:55

Dam wish i could cad draw that well, how long have you been using the cad package you use. I think i might have to take a night course to get to grips with it.

Only problem is that will be in auto cad and we use tubocad at work and the two dont seem to sit well with each other

Phil

Hi just a quick note if when testing a fit on a spindle you force the spindle in one plane ie the back of the machine m/c and read the error what you are reading is the max diflection this is an error that includes the rigidity of the m/c as well as the spindle play. What i check is the non returnable error similar test but remove the presure and then take the reading then repeat at 180deg. The opposite way then at 90deg and 270deg ghis will give a much better understanding of the error.

As for scraping practise on the old bearings first read up on blueing up and do a little the assemble and test repeat till required fit is acheved ive used this methord to scrap in high speed spindle bearings for production grinders

Phil

Had a quick look on the site it looks like most of the parts have been milled 2d the track links look to be flat plate parts then bolted together to simplify the milling but the cad drawing you had shown for you by another postie was posible without complex 3d milling with a little prep.

Just break the part down into simple steps. I can give a break down if there would be any intrest but i dont want to take the post to far off topic.

Phil

By the time i had typed that in the first one was showing as a link.

Thank you

Fantastic renderings my german is very poor was it done in solid works?

It looked very professional. Have they built it to the same standerd

Hi becky

Can you paste an actual link my tablet wont let me cut and paste text from a forum.

Plz

Phil

Very true.

But you can turn the form, then point to point the decal adjusting the depth of cut to give the constant depth of cut.

The pleasure of engineering there are so meny ways to make a part

Lol

Phil

Edited By Phil L on 27/10/2013 16:39:50

Edited By Phil L on 27/10/2013 16:42:35

The cuvres are programed as arcs or as blend arcs i a line ie x,y pos arc start pos x,y arc center pos x,y arc end pos x,y

Or x,y pos end of line blend arc arc rad size end pos x,y

In tbe case of the control i use it will fill in some data for you and give options for otjer end points.

I keep meaning to down load the free mach 3 software to have a go in prep for building a small home cnc. But having one at work seems to push it down the order of projects.

Hope that was understandable.

Phil

Hi becky

I to find cad difficult / counter intuitive it depends greatly on which program you use.

But dont be put off cnc you can program cnc without cad cam quite easily depending on what program you are using.
Cad is great for keeping project drawings that may need updating or where you may need to work out a point on a drawing that is part of a compound angle or a length along arc. It is not a per-requiste to program cnc. Most of the industrial cnc operators ive known learnt cnc first then picked up cad at a later as an interest if at all.
I programed a part shown below last week and it was far less than 64,000 lines.
I am not what i would call a skilled machinist my back ground is machine tool maintenance for engineering works. At the moment i am running a 4 axis cnc mill approximately 20 years old.
The conversational control on it is run by a 386 low end processor so this is not a modern wiz-bang do it all for you jobby, but the point i am making is that the home cnc software with the plug-ins available are more powerful and faster than the control i am learning. I say learning as you can keep learning better ways of programing and set all the time.

The track links shown looked fairly straight forward but would require two or three set ups and a angle cutter for the form.

I would run two parts at a time one on one face one on the other ie track clete up track clete down.

Sorry if this post went a bit to far of topic im not normaly one of posting

Good luck with all your projects

Phil

one other factor which has not been mentioned is that single phase (240v mains ) is not as smooth running as true 3 phase 415v mains. this can transfer in to the surface finish depending on your m/c and other factors.

phil

one other factor which has not been mentioned is that single phase (240v mains ) is not as smooth running as true 3 phase 415v mains. this can transfer in to the sufacce finish depending on your m/c and other factors.

phil