cutlist

General wood working tips, tricks and ideas. Anything that doesn't belong elsewhere can be discussed here.
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mrgrimsdale
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Post by mrgrimsdale » Thu Sep 25, 2008 7:37 am

Just had a peek over there and the poor things are getting their kn**ers in a tw*st over the price of "cutlist" which apparently is a programme for optimising your cutting out.
Somebody has posted "Pencil Paper Calculator It's how the pros do it - cos its quicker!"
Actually even that simple list is more than you really need if you just follow the old rule of thumb: always cut the biggest piece (longest piece of largest section) first, from the smallest piece possible (including off-cuts).
You have to follow the rule exactly even when counter-intuitive. e.g. you might think that cutting 10no 2ft pieces from from 2no 10ft pieces is a good idea as there is no waste, but you might find that you now can't extract a 7ft piece which you want, even though you have stacks of 5ft pieces.
Works the same with sheet, except orientation is an extra consideration.

cheers
Jacob

higgs
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Post by higgs » Thu Sep 25, 2008 9:51 am

I cut componants in exactly the same way, but surely you have to work out a list first with a paper and pencil?

mrgrimsdale
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Post by mrgrimsdale » Thu Sep 25, 2008 10:10 am

Dan Tovey wrote:I cut componants in exactly the same way, but surely you have to work out a list first with a paper and pencil?
Well OK ;D but what I meant was that once you have your cutting list and your stack of wood, you don't need to work anything out if you just follow the rule.

lynx
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Post by lynx » Thu Sep 25, 2008 11:50 am

i am thinking about getting the program. My hours are needed in the workshop, not on the computer trying to work out quantities for suppliers. It only takes a few minutes to enter the panels and it's done.

Small jobs, not needed, but a large panel job with special order panels, it's great.
LyNx

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Post by jake » Thu Sep 25, 2008 1:41 pm

Time is money, but money is newfangled nonsense.

wizer
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Post by wizer » Thu Sep 25, 2008 2:13 pm

I wouldn't be without it, I bought my computer to do that sort of thing so I can spend more time doing things I enjoy.

modernist
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Post by modernist » Thu Sep 25, 2008 6:31 pm

I use it a lot but it really comes into its own when you have many pieces rather than small jobs. Even better if you have different mixes of standard parts which you have already entered.

We have saved up to 18% of raw material at work (I adapted it for use with our plastic and rubber sheets/rolls)

We paid
Cheers

Brian


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jfc
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Post by jfc » Thu Sep 25, 2008 6:44 pm

I must be missing something , surely you have to put into it it the sizes you need . If you do that then you know what you need to cut out of what anyway as you have already worked it out ???

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Post by wizer » Thu Sep 25, 2008 6:53 pm

it can work out the most economical way to get your parts out of a sheet.

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Post by modernist » Thu Sep 25, 2008 6:57 pm

jfc wrote:I must be missing something , surely you have to put into it it the sizes you need . If you do that then you know what you need to cut out of what anyway as you have already worked it out ???
You can opt for maximum rips or crosscuts or leaving waste at the side or end depending on how you want to work.
Cheers

Brian


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engineerone
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Post by engineerone » Thu Sep 25, 2008 7:10 pm

but then jason since you get it cut at the yard ;D you leave it up to them don't you 8-)

this is obviously a product that is more effective for those using sheet materials. except of course does it actually take grain patterns into account?

paul ;)

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Post by jfc » Thu Sep 25, 2008 7:14 pm

I would say it is a product more for those preping thier own timber . I work out sheet material cut lists in my head . Then again if it where for preping your own timber it wouldnt take into account defects so really its just another "brass knob "

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Post by wizer » Thu Sep 25, 2008 7:38 pm

Same old argument. It would take me hours to sit down an work out a cutlist for 5 boards. Those in the trade can probably do it in minutes.

It's worth noting that the software is designed for businesses that hold their own stocks of sheet material and it acts as a database, works out stock levels, records useable offcuts (for which it will re-use on another job), etc etc. It can remember which saw kerf goes with which saw. The software can dump lists straight to cnc, it can report back to a parent server to order new stock as levels deplete.

It's not just for a guy making the odd kitchen cabinet. It's a luxury for us hobbiests with money to buy a service that saves time.

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Post by wizer » Thu Sep 25, 2008 7:40 pm

forgot to mention that it can print labels for each part, which I'm sure for jobs with over 50 parts is a bloody godsend.

jfc
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Post by jfc » Thu Sep 25, 2008 7:54 pm

I can see it working for say a kitchen company employing staff so not everyone is on the ball when it comes to wastage but even on a job with over 50 parts most of them are going to be the same anyway .
Like you say it a toy really and if its helps at the same time then great .

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Post by lynx » Thu Sep 25, 2008 8:22 pm

i'm writing up a cutting list for a reception desk. I have just installed the application, got half done so far with 126 cuts and 23 sheets. I can say it's saved me over
LyNx

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Post by jfc » Thu Sep 25, 2008 9:17 pm

All good untill you find a sheet or two with a bad corner and have to spend half a day sorting it out ;)
Like i said its good for a big company with staff that have no idea of the parts they are making , other than that i find simple maths easier and cheaper .

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Post by modernist » Thu Sep 25, 2008 9:24 pm

engineerone wrote: except of course does it actually take grain patterns into account?

paul ;)
Yes it does
Cheers

Brian


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engineerone
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Post by engineerone » Thu Sep 25, 2008 9:59 pm

how??????????????

paul ;)

lynx
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Post by lynx » Thu Sep 25, 2008 10:29 pm

you tick a box telling it the board material has a grain pattern, running length or width.
LyNx

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Post by higgs » Fri Sep 26, 2008 5:35 am

lynx wrote:you tick a box telling it the board material has a grain pattern, running length or width.
I think what Paul was meaning was the aesthetics of the grain pattern.

For instance, when cutting 6mm veneered MDF or ply for cabinet door panels, you're going to want to line up the pattern down the middle of the door, and a pair of doors are going to want to match.

Also, most people would want to select the nicest pieces of timber for the most visible parts of a project, such as the top of a cabinet.

No computer's going to do all that for you.

mrgrimsdale
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Post by mrgrimsdale » Fri Sep 26, 2008 6:09 am

Well that's all jolly interesting :o
The aforementioned "rule of thumb" will do all the above, and allow for selection for grain, or rejecting damaged boards etc - provided you can practically work your way through your stock / cutting-list in descending order of size.
I guess the Cut-list algorithm would probably use a similar approach but presumably you would have to feed in every detail of every piece including off-cuts. What happens when a chosen piece proves to be unsuitable, chipped corner or whatever? Decisions made on the shop floor same as the "rule of thumb" system?

cheers
Jacob

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Post by paulchapman » Fri Sep 26, 2008 7:33 am

jfc wrote: so really its just another "brass knob "
;D ;D

mrgrimsdale
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Post by mrgrimsdale » Fri Sep 26, 2008 7:54 am

[quote="lynx"]i'm writing up a cutting list for a reception desk. I have just installed the application, got half done so far with 126 cuts and 23 sheets. I can say it's saved me over

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Post by jfc » Fri Sep 26, 2008 8:00 am

Or realised your mistake had cost you

mrgrimsdale
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Post by mrgrimsdale » Fri Sep 26, 2008 8:07 am

And you don't have to eff about with a computer and keep going back to it for every sub-standard board with a fag-burn or spilled beer on it.

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Post by wizer » Fri Sep 26, 2008 8:49 am

i do sympaphise with you old people who can't work a computer...

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Post by marky » Fri Sep 26, 2008 3:54 pm

Or overpriced by

thatsnotafestool
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Post by thatsnotafestool » Tue Sep 30, 2008 9:48 pm

The computer aka The Thief of Time.

I've just kicked mine into touch as I spend too long on it replying to engineer one's rants ;)
The advantage of a bad memory is that one enjoys several times the same good things for the first time.
Friedrich Nietzsche

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