gpbullock asked:


Upgrading my shop by buying a cnc mill so I can produce in house. However, I want to be able to mill steel, stainless, titanium and aluminum. The steel and titanium I know are lower rmp speeds for milling due to hardness. What is the minimum spindle rpm allowable so that I can buy a mill that will be capable of milling all of the above listed material?

infotecgroup asked:

InfoTEC CNC Engraving Machine at work

Ms. Barbara asked:


The Cad Cam machinery is based on CAD and CAM, the short of Computer Aided Design and Computer Aided Manufacturing respectively. As the term means, it simply means that the computer remote machines that can be used for the designing and the controlling of manufacturing processes purposes. The CAD and CAM machinery has its own value, it is so heavy and well equipped that it is used for the engineering and architectural purposes for drawing and sketching a really form of image making it more compatible for the technical usage. This can be explained easily that once the design is made by the CAD component, the design itself will control the machines involved in constructing that part, on the format.

Making it simple this can be explained in portions, let us first discus what does the CAD means and what machines do with CAD, as it is the short of computer aided designing, it directly signals that those machines are helpful in designing aspects, for the professionals, the engineers and for the architectural purposes. These machines are composed of special type of software and often hardware that includes the main geometry-authoring tool within the PLM process. As the CAD is the main type, according to its utility it has some different titles as well like the CADD and CAID, which defines as the computer aided designing and drafting, as the CAD is often termed as the drafting tool as well, and the computer aided industrial design and also the CAAD which means the computer aided architectural designs, these all titles tend to be similar but minor differences in the work manner have given it new names.

The new packages of CAD include the 2D vector based drafting system and the 3D parametric surface and solid design modelers. The CAD is a very useful tool for which it means a lot, it is not just a designing tool but it is high full-bodied designing tool. It is the power of computer designing sources that is merged with the heavy machinery to make it more compatible for the advanced functioning in the thermal processes, fluid flow analysis, stress analysis and shear analysis. The meaning of advanced designing is fulfilled with the use of CAD tool. It is simple to use and is highly effective, thus saving time and profiting the person who owe it. It is drastic software that is used in many purposes of work fields where time is less like CAD and CAM is used for the food processing as well to secure the speed of the production line. When it comes to the CAM, it simply means that it is helpful tools regarding manufacturing processes in definite time. It the tool that is aided by the computer in the robotic form so as to make the manufacturing purpose more enhanced. The CAM is used to make the procedure more easy and quick to make the yield in less time and less complex method.

The use of CAD and CAM together is very authentic and together they are used in different working areas to make the designing and manufacturing processes highly well suited. The CNC program is created with the CAM tool, the combination of CAD and CAM tools create a CNC program, the CAM usually comes wit the machine called lathe or chisel, the two if comes together costs very expensive that is more than $1 million. The two together offers great advantages because its accurate and focused functioning on the major and minor objects for correction, realigning and adjusting geometric positioning and aligning metric systems within it.

The CAD CAM machinery is used worldwide in schools and many organizations that create, invent or manufacture new products.

afuan16 asked:


industrial part like automotive or anything

DanKush asked:


I want to build my own cnc machine, and am not having any troubles with the design or mechanics of it, but I am unsure of what exactly the controller does and how it does it. Is there port progamming involved, how does this control the step motors. Any help out there?

Antony G asked:


I am considering using a CNC beam saw to cut some MDF. I need to know if this type of machine would leave any saw marks on the cut surfaces of the material.

Basically, I need to find a way of cutting a large sheet of MDF (30mm thinkness) into 12mm strips. But finding a way to do this without leaving tool marks of the material. I’ve considered abrasive waterjet and a CNC router but now someone has suggested that a CNC beam saw might be the answer.

But it is very important that the material is cut very clean with no machining marks at all. Would a beam saw be ideal?
Re: Answer given by mega H.

Because of the way I want to use the material cutting 30mm strips from 12mm thickness mdf would not be possible. Also, I would need the cut surface of the MDF totally free of machining marks so that the grain of the MDF is extremely crisp and clear. I have tried sanding the MDF and that destroys the grain. If a drum sander was used would the finish be as clear and crisp as if the material was cut using say a router or even a abrasive waterjet?

CNCKitsAndBits asked:

Cutting a MDF clock cog on a cnc router

Wes Cox asked:


“At this time the vendor will view the given information, usually comprised of dimensions of part and type of material needed as well as temper and strengths of the application needs for the part. There are also instances where some type of exterior or interior plating may be needed; this too is taken into consideration at the time of quoting.

These are some of the necessary tools needed to properly quote the machined part for production in the machine shop. Other areas of information include number of pieces required and lead time for production. At this time a quote for manufacture will be offered to the customer with a valid lead time and price for production as asked for in their original RFQ (request for quote). The buyer will at this time compare to other possible quotes and choose from them the best one that fits his/her criteria.

A Purchase Order is then received for the part quoted from the customer to the awarded vendor. The information on the purchase order will provide the vendor with part number, quantity ordered and delivery date needed by along with the price quoted by vendor. Some customers will even go a step further and put the vendors quote number on the purchase order for confirmation purposes. The vendor will now compare the purchase order to the quote offered and make sure that all information meets the quoted details and either accept or decline the P.O. This process is the contract review phase.

The challenge now is to determine the most efficient method to manufacture the parts per the print specifications i.e. CNC machining, fabricating, stretch forming, hydro forming. A procurement specialist for the awarded vendor will now begin the task of sending out their own RFQ’s for material and any outside processing that will need to be done, as well as creating a job router for the part for traceability purposes. Aerospace machine shops should hold quality requirements per the AS9100 standard, which requires material tractability throughout every step of the machining process. This job router has all the information from the purchase order on it and will travel with the material from beginning to end. Once the material has been ordered and received it will usually go through a saw process determined by a machine programmer. Now the cut material will go to a designated machine for shaping, either by manual means or CNC (automatic). After the part has completed its time at the machine, it will go through a vigorous inspection process to assure the customer a part that complies with the information provided. Now the part will go to any plating or other outside processing and return for shipping to customer with the satisfaction of knowing that all needs have been met. 100% first article inspection reports are and all other documentation per AS9100 are sent with parts to the customer for final review.

Quality systems are a paramount function of any and all manufacturing of parts. Quality systems such as AS9100 and ISO9001 direct a company to uphold some of the highest quality standards in the manufacturing industry. A company’s quality statement and quality policy should be know and respected by all employees in the organization. Quality starts form the top levels of management and flows downward to the shop floor. “

candy545738 asked:

(1) 2.4m / 2.7m distance between column, 2.0m -6.0m cutting stroke

(2) 920mm / 1020mm ? Opt. ? Z-stroke

(3) 45 cc/kW/min Mild steel face cutting ability.

(4) 3-axis Box way design

(5) All casting iron main structure

(6) Slant cross section Beam with 3 box ways design for Y axis

(7) Best Center-line layout of spindle systemt

(8) Short transmission shaft with Japan made class JIS 0 gears

(9) Automatic alignment twin hydraulic cylinder balancing

(10) Pressured air Accumulator to achieve fast response of Z axis movement.

(11) All ball screws were pre-tension, temperature controlled, with absolute encoder .

(12) 4m and above model X-axis with gear reducer and vibration damper device.

(13) Wider front door opening, easy for operation

(14) High mounted swivel typ e operating panel.

(15) Reliable spindle and automatic tool chang er

(16) Ø 215m m x 450L mm ATC

(17) 3-axis lubrication oil collector.

(18) Ring type and nozzle type coolant design

(19) Manual 90 degree angular/extend/universal spindle are available.

George Ure asked:


CNC milling finds application making a wide range of custom parts. CNC milling is a cutting process in which material is removed from a block metal or plastic by a rotating tool. In CNC milling the cutting tool (called a “mill”) is moved in all three dimensions to cut a desired shape from stock.

In this process, the material is usually removed by both the end and the side of the cutting tool. Unlike a drill which removes material only from the end, in CNC milling the cutting tool rotates about an axis that is perpendicular to the table that holds the work. Cutting tools of various profile shapes are available including square, rounded, and angled. A wide variety of part shapes and geometries are possible. The most common are the “end mill” which finishes to a flat bottom surface while a “ball mill” has a rounded end.

A wide variety of 2D and 3D shapes are possible in the process. Some of the examples of CNC milling are engine components, custom jigs and mold tooling, complex mechanisms, enclosures, etc.

The thing CNC Milling does especially well is create complex shapes block material. While CNC milling can be used on 2D projects, there are lots of other choices for thin stock. Waterjet cutting and plasma cutting, for example, come to mind. But thick stock, needing metal removed? That’s where CNC milling shines. The CNC Milling process proves to be cost effective for short runs.

In the event you run into large production quantities, then you might wish to consider cast or forged parts.

When you set about designing a new custom part, keep a wide range of cutting machines in mind. Depending upon the production quantity you can model the cost of Laser Cutting, Turret Punch or Fixed punches, and the cast or forge decision.

The easy way to get started making custom CNC parts is to design them in free 3D CAD software available from www.emachineshop.com, the world’s first online machine shop. Once a part is draw, it can be assigned to different machines and prices and deliveries compared. If you like your design, eMachineShop is only too happy to build it for you.