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Fabio,
You understood & answered very well !! Thank you very much for your time to explain your set up and sorry to learn importing goods for you is a complex & expensive route, limiting you of a faire price on lots of what the world as to offer/available !! Wishing you all the best with your beast ! Amicalement, Robert |
Parabens pela maquina Fabio, eu não tinha visto essas fotos, a maquina ficou um Show.
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Gear info ?!
Hi Fabio,
May I be audacious and ask you to tell/share more on the how you did & conceive you motor gear belt reduction system ? I’ve gone through your personal pages, read post 3, got the pics from #1 & #19 but for me, I’m still in the dark as to how you built them ! Never done any but would very much like to give it a try. I’m daring to ask “Better yet, any plans & parts list ? “ :eek: From what I can understand there are some advantages to make your own “gear system” vs buying one that is part of the motor as many do to keep it simple The KISS approach !!! I‘ve read many sources say it can be an advantage & flexible if ever needing for some better resolution or speed !! But, with this in mind, I can’t seem to see how you kept it all in a close confined mater and with what type bearing/bushing on the shafts & how they stay/hold from the alu plate to shaft ? Thanks for considering ! Robert |
Lolata,
Obrigado pelo elogio, realmente, ficou muito boa... :) |
6 Attachment(s)
Hello Robert,
Well, the idea to build my own belt reduction was born when i tried to search already made reductions for stepper motors, or even motors with gear reduction like those from Vexta that are used by a lot of people here (in forum)... As I told before, Brazil is not so good to find these kind of products, and importing taxes are very high... I used as a starting point the original pieces (M5 10 312 and M5 10 322 motor swing plates) and imagined how to place one big aluminium 72 teeth XL belt gear as driven gear and a small steel 20 teeth XL belt gear as driver gear mounted on motor axis... I also bougth a XL size belt (sorry don't remember correct length size), calculated the center distance between gears and started scatching some ideas. The reduction is made basicalliy by two steel 10mm plates (but you can use aluminium) separated by 3 small collumns. The final design is attached in DFX format - sorry if they are incomplet, but I asure you it's possible do build funtioning unit from them... Each main axis, as I named the axis that the big 72 T gears is mounted is a 12mm diameter steel axis mounted on two 6001 ball bearigs. Each bearing is press fit in a recess made in each plate as you can see in drawings, and there are two thin spacers between gear and plates (one each side) to maintain gear centered and not touching plates... I then milled a flat recess in the shaft and installed a Allen screw to block the gear in the shaft. The main shaft is protuding to one side to allow the module 1,5 pinion to be fixed with two allen screws (in milled recesses)... In the plate where the motor is fixed, I milled a kind of recess to allow the motor slide in and out to adjust belt tension... If you note in drawing, the width of the recess is smaller than the front of a NEMA 34 motor, and because this I milled two paralell flats in the motor front cover plate (without dismantling it! ) - (sorry I don't have photos). The homemade reduction was them assembled over bench and then easily assembled in machine the same way the original one is mounted... Attachment 1122 Attachment 1123 |
Fabio…the Fabiolous !!! < :0))
This is very well and superbly explained. It is very motivating & inspirering for me. I’m no genius when it comes to metal working, I’m a meticulous custom & studio furniture maker. Love Metal working, but do not practice nor do much, so… I’m not inclined to see those little things that may be obvious to others. Thank for showing the way on this one to me… I owe you one ;) Robert |
Robert,
Please, feel free to ask me any other detail that interest you. I'll be glad to help someone else... Best regards, Fabio O.T: I don't know if you know this, but i'm very impressed with the detail: http://br.youtube.com/watch?v=kvHYaR...eature=related http://br.youtube.com/watch?v=GK5_Bl...eature=related |
montar machmate
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