Single Y stepper mod

[csorrows]

Wouldn't pretty much any of the mechanically linked Z options be better than this though? Single motor or dual, you would eliminate flexing of the bed plate by mechanically linking them. Using dual motors and independent endstops seems like a bandage for the symptoms, rather than a fix for the problem...

(Some of the same reasons are why the single Y-stepper is an appealing mod.)

They both provide the same result. Some people prefer one solution over the other (I did the dual X because I already had the parts). Maybe it would seem it would induce flexing, but it never gets out very far at all as I have anti backlash nuts installed as well. It's basically there as a backup in case it does somehow get out of wack. I have experienced zero ill effects from it.

[PaulS]

yes i kind of figured and you have mentioned he pops into the forums from time to time on the down low LOL it took me at least 4 different design attempts to get things right but i think i might be on to something so maybe it with make the FT5 v3 or 4 mod LOL IMHO having dual motors hardwired(series or parallel) opens you up to back emf between them i would be curious to see if anyone has put that on a scope. with the duet wifi i have a lot more power available to the motors so single should still be more than enough torque. This mod really reduces the mass in the top of my printer so should be a major upgrade if i ever get the wiring finished hopefully i will find out

[Dave]

@PaulS - That's clever how you used the square cutouts in the Y-axis plates as your new cable slots. They were already there because of the previous mounting of the old parts, and just in the right spot for your conversion.

Did you ever consider keeping the X-axis belt routing the same, with a vertical stepper in its original orientation, but using a double pulley and a belt loop to link the two sides instead of a metal cross-shaft? (One of the two steppers would be removed, and replaced with a double-pulley on bearings, basically acting as a jackshaft...)

[PaulS]

Hi @Dave so funny you said that! and yes in fact i did try something like that but didn't like all the belts...if you are talking about the drunk mans square hole. that is in the bottom left rear side of the machine so i could mount the motor under the solid aluminum deck plate i have that extends out beyond the end of the machine.. not pretty but has alignment and clearance LOL still playing with my tevo tornado (dont tell @csorrows i said that) and trying like hell not to upgrade it or mess with it too much. that might change this weekend... I really need to finish up the wiring on this and get Frank back on line but am already looking at a pt100 upgrade so...

[csorrows]

not pretty but has alignment and clearance LOL still playing with my tevo tornado (dont tell @csorrows i said that)

Why not? Have you noticed the other Catergories on the main page? We offer support for all printers if we can. It's just focussed on FT. BTW, Tevo sucks. LOL.

Now you have a new tag. Enjoy! (Let me know if you want it removed, I'm just playin')

[Dave]

Hi @Dave so funny you said that! and yes in fact i did try something like that but didn't like all the belts...if you are talking about the drunk mans square hole. that is in the bottom left rear side of the machine so i could mount the motor under the solid aluminum deck plate i have that extends out beyond the end of the machine..

On no, not that hole... I meant the two parts that drop down to the sides of the Y-rails - the two parts that you removed in your build when you did the conversion.

Do you have any photos of what it looked like when you tried the belt-linked Y-axis?

[PaulS]

Sorry @Dave no pics, never made it past r and d so short lived @Walter core xy might be close