CAD services

(Computer Aided Design)

 

Have you ever had an idea but cannot have it manufactured due to lack of drawings?

Do you have a product but need drawings produced to send for quotations?

Do you have drawings but just need them printed?

Have you an idea but don’t know if all the parts will fit together?

Do you need a computer generated model for presentations or brochures?

 

 

What ever your design or drawing needs let KR Design help you out.

 

We currently use professional 3D design software to produce 3 dimensional models of parts that can then be turned into workshop drawings or exported in various file formats for use in other applications. Not only can solid models be produced but sheet metal parts such as enclosures, guards, cowlings etc can be designed, a drawing produced then converted to a “flat pattern” file that can be used on punching machines, laser cutters or plotted as a template for manual cutting.

 

Solid modelling              Assemblies              sheet metal              2d           plotting

 

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Example 1:

 

Here is an example of how straight forward solid modelling can be turned into a drawing

 

 

                                       

 

This dome was created as a 3d model, the 3d model was then used to produce the drawing. Due to the complex nature of the cut outs around the outer surface, the model was exported as an IGES file that was then used on a 5 axis laser cutting machine to produce the cut outs on an already spun dome.

 

Assemblies

 

Where more than one part goes together to form an assembly, this assembly can be constructed on screen to ensure that in theory all the parts mate as desired. From this “model” both assembly drawings and bills of materials can be produced.

 

Example 2:

 

This example shows a small hydraulic motor assembly.

 

                         

 

The motor components were all created as individual parts and assembled to ensure they all went together. The complete model was then “exploded” To produce the drawing, both the exploded and unexploded views can be shown on the drawing. In addition to the views a Bill Of Materials is included to assist in part retrieval.

 

Sheet metal

 

Sheet metal is handled in much the same way as its solid counterparts. The design is first constructed as either a series of sheet metal walls or as a solid model then converted into a sheet metal shell.

 

 

Example 3:

 

                                          

 

 

This series of 3 pictures shows how a sheet metal box model can be used to produce firstly a finished component drawing and secondly the flat pattern. The drawing can also contain bend lines and a bend table we will be happy to discuss any specific requirements you have.

 

 

2D draughting

 

sometimes all that is required is a simple 2d sketch, this maybe just a copy of an existing drawing because the design has been proved or modifications are very unlikely. This is a service we can offer using a simple 2d drawing package it is more economical in the short term because in the case of an assembly all the parts do not need to be modelled, assembled and made into a drawing. However changes and modifications can be more difficult to implement on a 2d line drawing because the rest of the design cannot be checked against it. Our recommendation is to use this for making copies of an existing design that just needs putting into electronic format. We also have software now that enables us to scan pictures; drawings etc and produce DXF files from them. We have found this very useful when a logo needs to be used within a solid component, for example a logo on a part that is going to be injection moulded, the logo is scanned in to the computer then transferred onto the surface of the mould.

 

 

 

PLOTTING

 

KR Design is able to offer a Black and White plotting service for sizes up to A1.

We can accept your files in a variety of formats if all you require is just a plotting service.

This could be technical drawings, posters, line drawings etc

It is also possible to print documents produced on A4 size paper up A1 size, very useful if you need to do presentations without OHP or screens

 

 

 

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