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There is one thing puzzling me. Time ago I have fitted a capacitive DRO - Igaging style- along the bed. At the beginning it worked fine and I was very happy with it, but soon it started jumping and shifting. Here, on the forum, it was said the correction is to insulate completely the unit from...

I have started some maintenance on my lathe and among others cleaned my motor inside. Unluckily, my brushes have different dimensions. 9.77 x 4.38 x 16,25 as measured; they could be 9.8 x4.4 x16....mm native. Luckily, they seem to still have life in them. The motor has 370W nominal. Fun fact...

Thank you, Dave! The fact is I see recent videos where maximum gain is 15mm of travel (by milling the slide); a bit more than 1/2". Could be this due to longer nut than before? I haven't changed position of my nut. Later edit: I found this very interesting: Sorry for off topic.

Lapping the cross table ways (in fact all of them) was the first and most important of all mods. I have also shimmed the gibs with brass sheet (glued) and increased the number of set screws. Also, as one youtube video mentions, have adjusted them a bit tight. Now it works without play and...

If I'll replace my mini-lathe motor, I will never throw away my brushed one, but try to use it wisely. I have 14 happy years machining on mini-lathe. As long as they were...

One question: Controlled mechanical permanent deformation cannot replace heat treatment for obtaining constant pressure ring-liner all-around? I know that there is no procedure for such equivalence and no one would waste time for it. Cast iron has a reduced degree of malleability - which is...

For large diameter machining you have to reduce surface speed so motor RPM; so you gain torque. That's good!

Hi Steamchick. You can use VLC to shrink the size considerably. It is not difficult and there are tutorials (Media/ convert/ save.....). I don't pretend I chose the best option but I usually select Video for MPEG4 1080p... - enough resolution. Attention: when conversion window closes, you have...

Hi Steamchick. Congratulations for the conversion! We will wait extended impressions upon using it (with pictures!). Thank you for the tutorial and pertinent comments included. You can now heat your workshop with 8hours/day 750W in winter! Do you think 500W version is more than acceptable for...

Looks promising - at least with this controller:

Thank you very much, Steamchick! I am pretty happy with my motor level of power so I'll follow your advice. I am still interested in the results of your motor upgrade. A more powerful motor (in reasonable limits) cuts-off worktime, which shouldn't be ignored...

Hi Steamchick. Can you please write down dimensions of new brushes of original lathe motor; all 3. L.E. Do you think adding some copper spacers in the back of brushes could be a wise method to extend their life?

Hi Steamchick. Although I sometimes exagerate, usually appreciate wise, engineering use of resources. Your Unimat is not supposed to gather more than 20-40 hours continuous use each year. I consider your motor choice a good match and suited for portability (or storage). Please add second half of...

Hi Steamchick. First, what can you say about long time (?) use of lathe with new motor. Here is my take of Unimat motor. It is a 200W spindle at 48V/12000RPM but at 24V it is just right at 6000RPM. Pulley is custom made and is fixed between a shaft shoulder and chuck cap. Heating is no...

Hi Steamchick. I am very interested in the result of your replacement. If what I have seen on Ali is the same you have ordered, my guess is it will pass. I have an Einhell lathe which is a Sieg under cover, that recently started loosing power. I have thought to a 500W brushless spindle but...

min. 8.+ .... There is translation available, selectable in various languages https://en.wikipedia.org/wiki/Tatra_813 Diesels using spark ignition, Diesels using gasoline, gas engines using diesel fuel ... lots of fun!

I see now, it is the sealing foil, like in older soluble coffee tins. Thank you for ideea!

Do you have a link to Milo tins solution? I believe is a quite soft iron. Can it be found in something else? Is enough for purpose?

Hi Lloyd, I really admire your work! I have a question for what might seem a potential issue, unless -of course - is not the complete design; which I believe is the case. The link between cylinder liner and crank case, as seen in the picture, looks not that rigid and prone to cyclic bending...

Very, very nice! Please explain: 1- what is bought as-is vs what is done by you. All looks very "polished"! (no suspicion; just invitation to tell more) 2- how does engine work (what is centrifugal regulator's role and how it interferes with other parts. How many strokes bypasses at minimum)...