【Daily project update】3D data for checking clearance of assembly

3D data is a good feature for checking dimension of PC-Board in term of mechanical.
After make position of PCB such as assembly part to board. Some parts need area for those bodies.
Many parts are OK to plate on board if dimensions of parts are correctly.

PCB Program; Design Spark PCB

3D Program; Solidwork with Circuitwork feature.

Eagle data convert to DesignSpark data

Many ham radio designer just make a equipment by them-self. Most favorite software for they design is Eagle PCB Design. I start an learn and use Design Spark PCB design. When I find data by other ham design, I need convert to use in my software. Design spark can open a intermediate data from Eagle format. 

I try to convert data (Data from www.qro.cz below ) . Open its, and run ULP then use template from Design spark for convert to intermediate data (*.eip for PCB, *.eis for Schematic) , Final open on Design spark and little modification (If data correctly ). That its.

# This process just you have both software in PC.  

Building SDR Board.

This is SDR circuit base on Softrock TX/RX ensemble but find a local components. Target a project for using in VHF band. So step by step for design.

Interface a headset for yeasu

I promise my friend to make a headset and foot switch. He like a contesting and he give a foot switch to me and request to build interface. Now a first design a PCB was inform to him. 

Foot swith can connect with RJ45 at font of tranceiver. The interface's design to connect headphone and external mic. The foot switch connection with paralle to the PTT pin and ground.

Hopefully my friend and his son enjoy the contesting.

73 

SDR tranceiver

SDR for ham radio is growth to recommend in shack. I have a peaberrySDR and home-brew SDR HF receiver. Now I try do a build my own design. target is for using in VHF band that is for moon bounce experiment. 

3 axis CNC for milling PCB - Part 2

From the draft of CNC machine. I cutting and drilling  the woods. Assembly all cut wood for checking dimension and area of Plan working. It's reduce to 140 x 190 mm. Next jobs find the milling motor and assemble the Axis motors.

3 axis CNC for milling PCB - Part 1

Draft the Rubber Woods for making CNC Machine. This will be using 14 parts for assemble. Rubber woods found in local store. This design can working area in 200x250 mm. Enough for milling PCB.

Now! We will order the woods. Estimate cost for woods is ฿800.

5VDC/33VDC converter.

I will propose DC/DC converter. for increase 5 VDC to High Voltage 33V. In circuit use 74HC04 Hex inverter rise to 50 V then to 2 zener diode 33V to protect and output High voltage 33 VDC.
A Project can use to supply the circuit using 33 VDC. Example TV tuner or VCR.
Next I'm measuring a signal in circuit...!

Learning new application for design pcb

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Many parts I order online with RS-Components(http://thailand.rs-online.com)
This website easy to deliver to me and very cheap a deliver cost.
On e-bay sometime in Thailand may have more deliver cost. When I need order a little quantity, one or two parts is small side it has pay same big part.

In the website introduce the program for make schematics and PCB pattern.
I interest to try using its.

Current I use the Protel to make but it a big software for my old laptop.

May do better for my hobby.