DIY bellows coupler for JV2 lead screws. See the complete JV2 article.

After a way-too-long delay I'm proud to present some results of the servo drive project.

If you see a bike with these features, it may be mine:

• Nakamura Highlander, Silver paint, Disc brakes
• Polished plastic full length mud guards (unusual in this kind of bike)
• The largest body height (56 cm)
• Many tiny cracks in paint near/under seat

The person who finds it will be revarded.

The next time my bike will be equipped with a self built alarm system that thief will remember the rest of his life...

Finally some pictures and feelings about the first servodrive prototype. Check it out here.

Finally the first cuts made with home brew ER16 spindle! See the complete JV2 article.

My new sinusoidal AC servo drive development. Read the full article here.

New article about my A3977 based stepper motor driver! Read it here.

The article of BF20 mill has updated. Check it out here.

I've started documenting my latest CNC project. It is about converting commerical mill/drill Opti BF20 Vario under NC control. Check it out here.

The article about my second CNC router is now available! Check it out here.

My first article is now online! You can see the story of JV1 CNC-mill here. Meanwhile my the article of JV2 is under way.