Mini Cooper Car

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cusoak
Vectric Wizard
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Model of CNC Machine: Shapeoko 3D XXL

Mini Cooper Car

Post by cusoak »

I have a Mini Cooper car dxf file that I got for christmas, it came all ready laid out on a drawing.
It came with to thickness. 3mm and 1-4
This came from makercnc.com.
I work in inches
So when I open the dxf in either one of the 2 files it gives me the width and height and thickness and then tell me it is too big and will need tilling.
The thing that I am wondering about is the thickness. In both files it gives me .125 for the thickness.
So I am wondering if any one here has used a file from them that could shed some light on what I should do
I am wondering if I should just change the thickness to .25
They are very hard to get a hold of.
Jeff

flying_flip
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Re: Mini Cooper Car

Post by flying_flip »

When you import the model, you can change the unit of measure in the "Model Size" section.
The program will convert the units.

Phil
(flying_flip)
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ModelSize.JPG

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Adrian
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Model of CNC Machine: ShopBot PRS Alpha 96x48
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Re: Mini Cooper Car

Post by Adrian »

A 2D DXF has no thickness so the value you're seeing will be the thickness of the last job you setup in Cut2D.

The MakeCNC instructions will tell you the thickness of the material required or you can measure one of the slots to double check.

Phil, Cut2D has no 3D capabilites, this is about 2D vectors.

AlanAndrews
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Re: Mini Cooper Car

Post by AlanAndrews »

Very interested.

Is this the Classic or BMW model?

I've been looking around for a late Classic file for some while.....with the Sportspack arches!

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Adrian
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Re: Mini Cooper Car

Post by Adrian »

AlanAndrews wrote:Very interested.

Is this the Classic or BMW model?

I've been looking around for a late Classic file for some while.....with the Sportspack arches!
http://www.makecnc.com/mini-cooper.php

cusoak
Vectric Wizard
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Joined: Mon Nov 06, 2017 1:57 pm
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Re: Mini Cooper Car

Post by cusoak »

Thanks for the reply.
I learned something new. and that is about the thickness size of the last job. Also where would I fine a tutorial on Model sizing.
Jeff

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Adrian
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Re: Mini Cooper Car

Post by Adrian »

Sizing doesn't really have a tutorial as it's a one step process. Click the Set Selected Objects Size icon or press the T key or select the vectors and click to put into transform mode and pull the handles.

LittleGreyMan
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Re: Mini Cooper Car

Post by LittleGreyMan »

As Adrian wrote, globally resizing the model is not a big issue.

The problem is with the assembly slots. Their width has to match the material thickness. That's why the models are delivered for several standard material thickness.

If you resize the model, you'll have to edit the vectors to manually resize the slots according to your material thickness.

Of course, depending on the model, you may also have other dimensional issues. If your model only uses crossed parts (as a dinosaur skeleton), slots are the only issue. But if you're stacking several parts of material, you may not be proportional according to the stacking axis as the material thickness dictates the size of the stack.

I hope it was clear enough.
Best regards

Didier

W7 - Aspire 8.517

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Adrian
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Re: Mini Cooper Car

Post by Adrian »

What I do when resizing files with slots etc is to use the calculation features of the Vectric software. I will select all the vectors, open the Set Size tool, make sure Link XY, is checked and enter the following into either of the percentage fields: (x/y)*100=

When the = is pressed the calculation will resolve. X is the new material thickness and Y is the existing material thickness. When converting between materials of the same units (metric to metric, imperial to imperial) the percentages are easy to calculate mentally but when going from metric to imperial and vice versa I find typing the formula quicker.

Providing you're resizing the model purely for different material there is then no need to worry about the slots etc as they will automatically be the right size. If you're scaling because you want a six inch car rather than seven inch then you will need to edit and adjust all the slots etc manually as LGM says.

LittleGreyMan
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Re: Mini Cooper Car

Post by LittleGreyMan »

Adrian, where did you learn the English language? :D

Your explanation is obviously much more clear than mine!
Best regards

Didier

W7 - Aspire 8.517

cusoak
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Re: Mini Cooper Car

Post by cusoak »

Thanks For the reply's
I now understand that I should check the thickness of my material against the width of the slots.
As we all know that 1/4" plywood is not really 1/4" thick anymore.
I am using Baltic Birch and it is not 1/4" either.
Jeff

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