Search results

The modified bench top mill does it electronically. A spindle encoder is fed into the CNC controller. The CNC controller does the calculations and rotates the gear blank via a relatively small stepper motor. Instead of change gears, numbers in the control need to be changed (based on...

You should not worry about your English, it seems to be just fine. A lot people here, me included, are non native English speakers. If you do not know anything about Electronics it might be difficult to get it done, but an opportunity to learn something about it in the hobby process. One easy...

Very interesting. What is the goal? ( I mean sizes of gears, types of workpieces etc. ) using electronical gearing can help reducing mechanical complexity pure mechanical gearing has a certain fascination (is more fun to watch) Are you already all the way through with the design? Tailstock...

http://birkpetersens.blogspot.com/2014/08/kimble-steam-engine.html I assume you already found this. Do I need this engine?

I think there is no point in trying to abuse a cheap stock 3d printer mechanic for any precision machining. (of any type). That is why I will not engage in these kind of experiments for sure. :cool: ( I admit I was foolish enough to try; in hindsight a total waste of time :) (besides some...

I think it is fisible with module 0.7 cutters. The center to center distance for the DP40 (module 0.635) gears is 33.34 mm if you make a module 0.7 pair with 32 and 64 teeth, you end up with 33.6 mm center to center disance. My guess is that you can squeeze out the 0.6-0.34=0.26 mm center...

You seem to make some progress. :cool: I would be curious what you are doing. Is there another thread that I am missing? What angles did you experiment with?

Swarf as in oily chips with coolant? I think in Industry they use rotary kilns for this. Trying to keep Oxygen out of the process as good as possible. Otherwise it will all end up as dross on top and no acceptable yield will be achieved. Degreasing (washing) and compacting with high pressure...

Yes, I assumed that. Drilling 4 or 6 mm plunger holes would possibly not work anyway. Easy to overestimate the accuracy of those printers. Dividing a distance into a number of steps, does not automatically ensure the steps beeing equal. In the example, PCB milling of a very simple single sided...

On cura there is a paramter z Seam Alignment, if you change it to random the vertical seam in the bore should go away. If that creates other issues I do not know. :cool:

I would probably just adjust my tolerances to match the printer. ;) For sure if I scale a part with inside bores to 2-times the size, everything becomes bigger including bores. Scaling in Cura scales everything, but holes tend to end up undersize. I would just re-work the holes in the print...

I think G-code would be the least to pose a problem. Hand coding the drill program should be straight forward enough. There are lots of obstacles and challenges more serious than the G-code. :cool:

The approach of using a micrometer screw for the rotation is probably not useless. A sine bar is using same principle. Provided we are able to determine the distance between the micrometer tip and the center of rotation. (and provided the micrometer tip is precisely spherical) Basically it is a...

Y

I guess a sherline divider will cost quite some "Dongs" :) The Arduino solution can be financially interesting, provided there are some existing mechanical parts. 65 / 25 = 2.6 .... 2.6*75 = 195 ..... 195/39 = 5 Suddenly I also get confused, but it should be correct. Conclusion yet another...

How many holes? 39? https://www.blocklayer.com/circle-centers (not sure about the auto generated subtitles) Can you describe more, what you want to do? It might give someone more idea what makes sense. Following advise is just 2nd hand (seen somewhere) or untested ideas. 1. paper as...

The good thing about Aliexpress is: :cool: it is hit and miss (just like those engines). it is like paying for the drinks at the pub, money is gone the moment you order, headache might follow later. (depending on amounts and over all outcome) there are all sorts of "fakes of fakes", you...

That stuff is really not expensive e.g. a TCST2103. Salvaging them from old printers can be frustrating, LEDs burn ( 🔥💥) with wrong current, pinout is sometimes not clear. Extracting them from an old device is extra work. I doubt that making the light barrier mechanically work is less hassle...

Some of my stalled projects are watching this and they are very excited. They hope of getting re-visited.

That is the point, often things do not go smooth and the hammer gets harder, bigger and the users become violent :cool:. The shaft on the picture has probably enough clearance to use a cheap 3 arm puller. I have a small one from the local "everything shop" not a good tool, not an expensive tool...