FAQs

Frequently Asked Questions

It is possible to CNC any milling machine, but like anything knowledge and price are the biggest considerations. To CNC a machine to do it quickly with high quality is not cheap. To CNC a machine to high quality and low cost will not be quick. To CNC a machine cheap will not be quick or high quality.

Things to consider:

  • A lead screw type mill can be CNC but will need to be compensated for the backlash and this can be tricky without strong coding skills.
  • Ball Screws will eliminate backlash but can be expensive to come by.
  • Either stepper or sevo motors to run your ball screws will also be required, again these vary widely on price.
  • You will then need a controller & software to run the motors.
  • OPTIMUM only offer the BF20 as a CNC unit in Australia for hobbyist and do not wire the motors to the controller so that there is a high level of skill required to set up and run.
  • A full CNC center set up with a computer and everything factory installed will cost between $20k-40k. To be able to offer a DIY CNC kit for larger machines can bring this cost down to around half the cost depending on the machine size and operators skill level.

Our team are happy to have a chat and run through options available.

The OPTIMUM & METEX Range of Band Saws come with a bi-metal blade as standard. Unfortunately we don’t carry stock of the blades as they are usually a common size and there can be too many variations of tooth geometry, teeth per inch and quality relative to price. We recommend https://www.bestblades.com.au/bi-metal-blades and you can choose the TPI based on the material your most likely to use it for or have a few variations on hand.

Currently OPTIMUM do not provide an x-axis power feed option for the BF20 or MH28 and they do not intend to supply these in the future. Alternative options are the METEX PRO MP25L/MP30L or METEX by OPTIMUM BF30L which do have x-axis power feed options available.

Morse Taper 2 & 3 are metric measurements and 1/2″ whitworth is imperial, some OPTIMUM BF20 & MH28 milling machines will come with this size drawbar but it is far from a common size. At Redfox all our METEX by OPTIMUM BF20’s come with a MT3 M12 Drawbar so you can buy tooling almost everywhere. We do hold stock of these Drawbars, get in contact by e-mail sales@redfoxmachinery.com.au or phone 03 9016 9866.

A band saw is a power tool which uses a blade consisting of a continuous band of metal with teeth along one edge to cut various work pieces. It’s also a useful machine in a
woodworking shop. The band usually rides on two wheels rotating in the same plane, although some band saws may have three or four wheels. Band sawing produces uniform cutting
action as a result of an evenly distributed tooth load. Band saws are used for woodworking, metalworking, or for cutting a variety of other materials. They are particularly
useful for cutting irregular or curved shapes, but can make straight cuts. The minimum radius of a curve that can be cut on a particular saw is determined by the width of
the band and its kerf.

A metal forming process using a press brake to form metal sheets and or plates to a specific degree or angle. Bending of metal sheets and plates can be used to form custom
shapes such as formed channels, angles, and or Z-sections. Press brake bending allows you to form custom shapes that might not be available as a standard shape and or size.

A cold saw is a sawing machine that uses a circular saw blade to cut metal. The name “cold saw” comes from the cutting process they employ. These sawing machines transfer
the heat generated by cutting to the chips created by the saw blade. Therefore, the blade and material being cut remain cold, unlike an abrasive saw, which abrades the
metal and creates a great deal of heat in the metal and cutting blade. Cold saws use either a solid high speed steel (HSS) or tungsten carbide-tipped, resharpenable
circular saw blades. They are equipped with an electric motor and a gear reduction unit to reduce the saw blade’s rotational speed while maintaining constant torque.
This allows the HSS saw blade to feed at a constant rate with a very high chip load per tooth. A cold saw cut produces minimal burr, no sparks, no discoloration and no dust.
The material being cut must be mechanically clamped to prevent movement during the cutting process. Extra care should be taken to choose the appropriate number of teeth,
saw blade type, cutting speed and feed rate. All of these variables are based on the type and size of material being cut. Cold saws are capable of machining most ferrous
and non-ferrous alloys. Cold saws are intended to be used with a flood coolant system to keep the saw blade teeth cooled and lubricated.

CNC is the automation of machine tools that are operated by precisely programmed commands encoded on a storage medium, as opposed to controlled manually via hand wheels or levers, or mechanically automated via cams alone.Computers play an integral part of the control.