I have been going to Jan and Deily for the past year and a half, for various company projects, as well as my side-projects for my house and cars. So it has been due time for me to write a review for him. Before I do, I have to say it is funny to read other reviews on Yelp, like the one about pressing car bushings (which truly not even specialized car shops would do). I have to go back to Jan for that, because I did not know he did such things. I had given up on replacing bushings on my car, after being turned down by so many local auto shops and mechanics. Now for that reviewer that rated them badly for a four week lead time... what sort of expectation was that? A poorly-run machine shop has downtime to let anyone cut in. By all means go to those shops instead or pay an arm and a leg, if that is the expectation... however, Optima Precision operates like all properly run, established machine shops do... schedule your work into their operation or work an expedite out with Jan and Deily... We are even lucky they are open to our side-projects. Bottom line, talk it out with them. They are very open to making things happen! Anyways, just to give a little background, I formerly worked as a design engineer for Zodiac Aerospace's oxygen system division, that made a lot of pneumatic components such as valves and manifolds. I can certainly attest that Jan and Optima Precision has the expertise and capabilities to machine top-notch quality parts. Whether you are dealing with extruded, cold-pressed, tempered aluminum, steel or etc., or softer brittle plastics like plexiglass or acrylic, up to something like 6 feet by 4 feet (double check with him), he and his crew can take care of that. I originally went to Optima Precision because Jan and Deily were the more responsive, local machine shop. They are very approachable and easy to communicate with (their English is solid). Most importantly, their pricing and lead times were very competitive, compared to the other shops in the area. Easiest way to describe them is that they are flexible and understanding like the old machinists but they operate with the newer CNC mills (even though they have Bridgeports off to the side). In other words, they are not like other new machinists that refuse small orders and cannot think other than what their CNC machine tells them they can or cannot do. What do I mean by an old machinist? Jan did not just go off my engineering drawings, but he verified my design intent to make sure my parts would fit and functioned well in my application. He was more concerned with what I wanted my part to turn out as, rather than what his machines could or could not do. To affirm other reviews, Jan and Deily are truly open to make small quantities (even one or two pieces like other reviews stated) and, of course, scaling to large production quantities. If you have worked with machine shops enough, you would understand that Optima Precision is a no brainer to have your parts, at least, quoted there each time. Long review, but hope that helps you all when considering! read more

I approached Optima Precision to machine 2 simple holes in an automotive part. I explained exactly what needed to happen and what the part was for. I mentioned I was not in a hurry and could leave it for the weekend. Before I could finish explaining and before price was even discussed I was interrupted and told the wait would be 4 weeks. To machine 2 holes? Shouldn't take a competent machinist more than 10 minutes. No thanks. I dropped the part off at another machine shop and had it back minutes later machined perfectly to specification. read more

These guys are awesome!! I needed a rubber bushing pressed out of an engine mount and many other shops around refused to "take on the job" but these guys did it in 5 minutes without any trouble. They really know what they are doing and I would highly recommend these guys, truly an honest place! read more

Really like working with these guys. Jan is super helpful and willing to provide feedback and advice. Their prices were competitive even with our one-off pieces. Their inspection process is also very thorough. Deily is also very responsive in providing quotes. Very excited to keep working with these guys in the future! read more

I can't say enough about Jan and Deily at Optima Precision, they run a premier machine shop! I am so glad that i found them and anyone looking for a quality machine - call Jan and Deily. The team at Optima Precision is the definition of customer care and customer service. The entire team in my mind are rock stars. read more

Jan and his team are fantastic. While most other shops take their sweet time, Optima produces quotes same or next day, and parts usually within 1 week or less. They are THE machine shop of Silicon Valley with fast communications and fast turnaround. Unlike others, Optima is willing to take on experimental and prototype work that needs only 1-2 pieces. That definitely enables us to iterate on our designs much faster. read more

Optima precision was extremely helpful in producing some prototype parts that I needed, in under a week I had a finished batch of them, and they came out looking great! I would definitely work with this company again for future needs. read more

I needed a few parts to be CNC milled. I contacted a few shops and the quotations were all in the same range, however Optima Precision gave only a week turn around time, while others gave 2-3 weeks. Jan was very responsive (we had an email conversation), and quickly answered all my questions. The parts that I needed required quite high precision, and Jan delivered top notch results well ahead of schedule - only in 3 days! All parts snapped together and worked like a charm! Great work. read more

First rate high-tech machine shop with first rate equipement. Reasonable prices, excellent quality, excellent customer service. Job completed on time, on budget, with highest quality. Jan is very good to work with, responsive to email questions, and committed to producing the highest quality work. read more