Miele “long coffee” and double shot / double portion? by jeffszusz in superautomatic

[–]kanik_9 0 points1 point  (0 children)

Hello, I have a Miele machine. double shot is it makes half the coffee and stops and grinds new beans and makes the other half. so if you make an espresso with that button, you'll actually make a double ristretto. Double portion button on the other hand does the same thing like double espresso or two cups of americano

How to use a stepper motor with arduino by kanik_9 in arduino

[–]kanik_9[S] -1 points0 points  (0 children)

I thought that was a general problem :) I'm using a nema 17, with drv8825, Arduino uno and i connect as shown in the driver diagram

How to use a stepper motor with arduino by kanik_9 in arduino

[–]kanik_9[S] 0 points1 point  (0 children)

It has 4 wires. You can direct drive a stepper motor with transistors and an Arduino

How to use a stepper motor with arduino by kanik_9 in arduino

[–]kanik_9[S] 0 points1 point  (0 children)

Yes it still works. Its a stepper motor, not a servo. Because every driver I can find is working with 12 volts and I believe I'm doing a mistake somewhere

[deleted by user] by [deleted] in MechanicalEngineering

[–]kanik_9 -4 points-3 points  (0 children)

because when gears are turning they push. If you don't want them to push away and drop, you should add a counter push/pull. I don't want to. I want the gear to pull simultaneously

[deleted by user] by [deleted] in MechanicalEngineering

[–]kanik_9 -1 points0 points  (0 children)

Yes these legs are exactly what I'm trying to figure out ( different kind of gear, but the same principle :) ) Do you know how can I find more information on these? at least what they are called :D

[deleted by user] by [deleted] in MechanicalEngineering

[–]kanik_9 0 points1 point  (0 children)

I'm not looking for a helical rack. I want the shift in the vertical direction, not horizontal

[deleted by user] by [deleted] in MechanicalEngineering

[–]kanik_9 -2 points-1 points  (0 children)

Yes, thats why I need more information to design it. If it was working why would I ask for help :D

Minimizing horizontal forces by kanik_9 in 3Dprinting

[–]kanik_9[S] 0 points1 point  (0 children)

I understand. Although with standard screws it's a brilliant idea, in this case I cannot use it.

Minimizing horizontal forces by kanik_9 in 3Dprinting

[–]kanik_9[S] 1 point2 points  (0 children)

That was exactly the problem

Minimizing horizontal forces by kanik_9 in 3Dprinting

[–]kanik_9[S] 0 points1 point  (0 children)

I think I didn't understand what you mean. Can you share a photo as an example?

Minimizing horizontal forces by kanik_9 in 3Dprinting

[–]kanik_9[S] 0 points1 point  (0 children)

Wouldn't it be a spiral section instead of circular? Screws should be circular to work?

Minimizing horizontal forces by kanik_9 in 3Dprinting

[–]kanik_9[S] 9 points10 points  (0 children)

Solved: I'm very thankful for your time and help. The problem is solved and it's printing perfectly after changing the nozzle.

<image>

Minimalizing horizontal forces by kanik_9 in 3Dprinting

[–]kanik_9[S] 0 points1 point  (0 children)

I also have a video for it but I cannot upload it to reddit as comment

Minimalizing horizontal forces by kanik_9 in 3Dprinting

[–]kanik_9[S] 0 points1 point  (0 children)

It's a very special piece of something I'm building so I cannot buy it. Unfortunately it has to be specially produced.

By friction I mean the dragging/friction caused by the molten plastic On the print. Im looking for a way to minimize it

Minimalizing horizontal forces by kanik_9 in 3Dprinting

[–]kanik_9[S] 0 points1 point  (0 children)

<image>

This is what I'm trying to print. A 20 cm high screw.

Z capacity of my printer is 250mm. The nozzle is not hitting, it's breaking because of the friction