Dispense Master Jet Dispensing

The DIMA Dispense Master is a Desktop Dispensing platform providing a wide variety of applications. The machine is one of the few desktop platforms moving the dispense valve in X,Y and Z direction instead of moving the product on a moveable table. This makes programming very easy. The Dispense Master is equipped with a standard camera for programming purposes, calibration and fiducial alignment. The software is based on the same platform as all other DIMA machines and provides a library structure to store all important parameters. The standard work area of the Dispense Master is 320 x 420mm. In case of dispensing solder paste or SMD adhesive, the PCB’s CAD-file can be converted into a product file providing all dispense positions for both materials through the package size within the package library (like being used in a Pick & Place machine). Programming therefore can be done fully off-line (Cad conversion). Dispensing solder paste can be done either directly from a syringe, but for repeatability it is better to use an Archimedes screw valve DD-5100. An SMD adhesive can also be dispense directly from a syringe. For better repeatability it is also preferable for this material to use an Archimedes screw valve DD-5100. In case higher speed is required for applying the SMD-adhesive you can even use a Jet valve. 

Programming

Programming the Dispense Master is extremely easy. First the programmer points out 2 reference points on the product, then some test dots can be selected and taught. A library of dot sizes with a cross reference to the packages makes selection of dots a simple job. In one operation several different dot sizes can be used. Change of dot size is done by changing parameters in the software. When a dot type is selected you only have to point out with the camera where to place the dot. Functions like fixed step, step and repeat and free trackball movement make programming extremely easy. For multiple PCB's, one PCB has to be taught after which you only have to tell the Dispense Master where to repeat the same PCB again. For lines circles and fills there is a library containing different geometric shapes and line thicknesses

CAD

Using the DIMA CAD conversion software brings programming of dots on a large PCB back to several minutes.