Knob with knurled surface for CNC 3018 X and Y axis (3D print)

Skraćena veza: https://pedja.supurovic.net/veza/9763

I stumbled upon model for bolt and nut with knurled interface https://www.thingiverse.com/thing:9095. I liked how it looks so I decided to adjust nut model and make it to become hand wheels knob for my CNC 3018 X and Z axis. It turned out pretty good.

Knob radius is 24 mm and thickness is 10 mm. It is meant to be used on 8 mm lead screw so it has 8.1 mm hole which is big enough that knob tightly sits on leading screw so it can easily turn leading screw.

There are holes for 3 mm screws if there is need to additionally secure knob on the lead screw.

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DS212/DSO212/DSO202 Oscilloscope Mini Stand 3D print

Skraćena veza: https://pedja.supurovic.net/veza/9756

I needed stand for my DS212 oscilloscope. All I could find were too bulky, so I decided to design one. I posted it at https://www.thingiverse.com/thing:4347186

It is very small stand for DS212, DS02 or similar size oscilloscope or some other device. Part dimensions are 35 x 5 x 10 mm so it easy fits in any box or bag you use to carry osciloscope around.

Although You may use single stand it is more stable and practical to use two of them. Stand is tight enough to keep attached on device even if you lift it up.

Display is kept at 45 degree toward device user which is comfortable.

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36V CNC Spindle Motor Driver

Skraćena veza: https://pedja.supurovic.net/veza/9675

Hobby CNC machines are usually based on Arduino/Woodpecker CNC controllers with cheap motor drivers and 775 spindle motors. Motors are specified to run on 36V but CNC machines usually run it on 24V. That means motors run on slower speed than what they can do. Some controllers are able to run 36V but 24V power supplied are delivered with them. Newer Woodpecker CNC controllers are specified to run on 24V only.

Some specifications claim that 775 motor used for spindle runs at 3000-6000 rpm when powered at 24V and gets up to 9000 when powered at 36V. I wanted to run spindle at maximum possible speed for better milling results. […]
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CNC Clamp Screw Locking Improvement

Skraćena veza: https://pedja.supurovic.net/veza/9634

With hobby mini CNC machines you get simple and very cheap clamps that are not easy to use.

It is hard to fasten it because screw turns along with nut, and as screw head is in T-slot of bead it is not easy reachable to block turning.

This is small rectangle peace you can attach to screw head that will block it turning within T-slot.

It makes using clamps much better experience.

You may make it from mdf, wood, plastic, metal, whatever you like.

Download from: https://www.thingiverse.com/thing:4160827

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Dipole Antenna Center Insulator for SO239

Skraćena veza: https://pedja.supurovic.net/veza/9625

Building dipole antennas is always some kind of improvisation. Center insulator is quite simple and may be made in short time with jigsaw and drill.

As I jumped in CNC world I need some simple tasks to learn how to use FreeCAD and other software. So, dipole center piece is ideal just for that. I’ve finished project and learned a lot in the process.

Finished projects is uploaded to Thingverse: https://www.thingiverse.com/thing:4149187

You may use CNC mill or 3D printer to make this part. Pay attention to use material strong enough to survive possible strong forces.

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