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    DIY Tesla Impulse Turbine

    I agree with Steamchick; gasket silicone might not cope with cyclic loads; though special silicone varieties can do the job. On the other hand, fabric reinforced rubber like that for conveyor belts can do it; and is many times used as such, cut or machined to shape. I remember it was even used...
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    Rotary-Vee Engine

    Hi Ray. I think also the pistons are too much retracted in outer position -lever effect. I notice the wear is clearly localized. Maybe increasing V angle would help (though reducing cylinder volume). Also, maybe a complete cardan (or ball joint) could be of help. As I see, the pistons are forced...
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    Replacing with Brush or Brushless DC motor

    Hello Steamchick, yes I am heavy handed and rather niggler, mostly on profiled surfaces where I notice paint is not evenly applied (or missing here and there) and I correct it ... I want a thin layer , even if it is easier damaged. The paint is not for protection purposes and my mill won't take...
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    Replacing with Brush or Brushless DC motor

    Hi Steamchick, thank you for all your advice! First of all, stove black paint is hard to find here but I already have high temp black spray paint on which -if I remember correctly - is mentioned it can be used on engine mufflers and such. But... I wonder if Easter eggs dyes or inkjet printer...
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    Replacing with Brush or Brushless DC motor

    I must confess that both lathe and mill are candidates to motor upgrade. But while my lathe still runs strong, the mill gave up. The original motor was a satisfying 500W brushless, but because of controller issues something burnt out. First it started accelerating and braking randomly and...
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    Replacing with Brush or Brushless DC motor

    Small updates, small problems. I have run the motor again; yes Steamchick, pressing + increases motor speed up to 4500rpm which seem to be set from factory as max. I think this limit can be changed through programming - if needed- up to declared 6000rpm. In this condition (+ to the max) the...
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    Sandblaster!!!

    How about windows sealing rubber profiles?
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    Replacing with Brush or Brushless DC motor

    Hi Niels, Thank you! Actually I have just run my motor. The only complain (half complain) is that on motor it is written 200-6500rpm and in first test maximum displayed was 3000rpm, so less than half. Off course it can be adjusted through programming, but anyhow my enjoyed range on lathe...
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    Replacing with Brush or Brushless DC motor

    Hi Steamchick, Thank you for your advice! I have already downloaded and re-read your tutorial related to lathe integration of this servo-motor and I find it very useful! I have also found a manual which I will attach to my post. I must stress that the manual is for a similar motor and the...
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    Replacing with Brush or Brushless DC motor

    My 550W motor has arrived. I will not hurry to install it as I just have cleaned and checked my lathe and it is still going strong. I will take my time to prepare mounting bracket and pulley. On another hand my instructions are in Chinese only so I have to check for English version or some...
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    Sandblaster!!!

    Sometimes they are commercially called ash-collectors , are efficient and quite cheap.
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    Sandblaster!!!

    I have tried to make my first sandblast cabinet from a microwave oven. It should have been for very small parts. I have made the adapter ring on the 3D printer ((for an additional polycarbonate front door - or cover). Very fast, as it is not a tall part. Actually was the only part I have...
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    Sandblaster!!!

    Bug spray is interesting to try on headlights (limited number of cleanings). I have tried special headlight kit and I was not able to clear them - it might seem some are clear lack covered; anyhow I couldn't remove scratches but multiplied them with this dedicated set -which is very fine. About...
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    Replacing with Brush or Brushless DC motor

    In fact I love so much varispeed (or whatever its comercial name would be) based on simple V-belt that, If I hadn't go for that brushless servomotor, I would have tried a way to get it for my lathe:
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    Replacing with Brush or Brushless DC motor

    I mean vs gear trains. Let's take this: If something blocks the mechanism instantly, the shock is very high, both in gears and in bearings. Even if there are no instant effects, the usual materials of transmissions are hardened or anyway have predisposition to micro-cracking and metal fatigue...
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    Sandblaster!!!

    We learn to live with less, from the beginning. That's why astonishing paper models exist! But there should be no shame to take what you think it helps you and is affordable. If Brian is like me, I am sure he envied the silky-uniform appearance of glass bead blasting.
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    Sandblaster!!!

    Congratulations Brian! Much better than other options! A solid option (in all aspects).
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    Replacing with Brush or Brushless DC motor

    Car crashes in solid obstacles - one I have acknowledged recently on TV - remind me tremendous importance of deceleration which influences overload. Tooth belts absorb energy and protect the other elements in a kinematic chain. And this prolongs equipment life.
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    Replacing with Brush or Brushless DC motor

    Once, v-belts were the rule in the car engines. With proper adjustment, they were trouble-free for many years. For toothed belts, only safety reasons require faster than normal change.
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    Replacing with Brush or Brushless DC motor

    Thanks Steamchick; can't wait for the new motor to arrive! In what concerns cutting speed, I'm not as careful as you and I have never learned to use speed diagrams; but working a lot with HSS, I have got the habit to run rather slower. My lathe came with a set of carbide brass-welded cutters...
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