Delta smart effector+Haydn Magballs carriage mount

mihaitintea

Hello

Please help me with a suggestion.

In have the Anycubic Kossel Linear Plus printer.

I bought the Delta Smart Effector and Haydn Magball Arms.

I do not understand how to mount the Haydn arms to the carriages where the GT2 timing belt is anchored.

I.e.,

The Kossel printer has Hiwin clones linear rails with MGN12H. On top of these, there are mounted the Kossel carriages where the GT2 belts are anchored. The design of this is such that the GT2 belt which is anchored in the carriage is perfectly vertical, aligned with the GT2 belt gears mounted in the bottom and top triangles of the printer frame.

Well, if I slip the Delta Smart Effector rectangular carriage adapters between the MGN12H pieces and the carriages, the GT2 belt will not be vertically aligned with the GT2 gears in the bottom and top frame triangles any more.

I am not sure why I did not see this before I ordered the Delta Smart Effector, but now I am stuck and I do not know what to do.

Please can you advise.

Thanks and regards

dc42

@mihaitintea said in Delta smart effector+Haydn Magballs carriage mount:

Well, if I slip the Delta Smart Effector rectangular carriage adapters between the MGN12H pieces and the carriages, the GT2 belt will not be vertically aligned with the GT2 gears in the bottom and top frame triangles any more.

Can you adjust the positions of the pulleys at top and bottom so that they do line up? That's what I did when I converted my Kossel to the Smart Effector.

Alternatively, you could mount the PCB carriage adaptors on top of the carriages, using longer screws and if necessary spacers between the carriage adapters and the carriages..

mihaitintea

Hello Mr. DC42

As always, DC42 to the rescue !

Because my printer was shipped with the top and bottom triangles pre-assembled, I don't know how to adjust the position of those pulleys. I was searching for the last couple of hours the Internet about how to adjust the position for the pulleys, but I did not find anything relevant. How bizarre for 2019.

Before I use pliers/wrenches/spanners on these pulleys, I would appreciate to have a confirmation from you that I am doing it right. The bottom pulley (mounted on the stepper motor shaft) has a grub screw ? However I cannot figure out how to adjust the top pulley.

Even if I wouldn't have bought the Smart Effector and the Haydn arms, I'd be better adjust those pulleys, since I noticed that the timing belt touches the carriage adapter anyway.

And of course, it is very smart as well to use your second suggestion (mount the PCB adapters on top of the stock -- plastic -- carriage adapters), since that allows me to avoid tinkering with the carriage adapters -- which actually I have to do it anyway, because the belt touches them.

Also please do you happen to know a link to something printable (e.g., some STL on Thingiverse) so I can learn about the dimensions in millimeters that are there at those carriages ?

Much appreciated,
Mihai

oliof

IIRC, the top pulleys of the anycubic kossel are not adjustable. You might be able to find custom carriage (similar to https://www.thingiverse.com/thing:1457448) so you can keep the pulleys in place and add the magballs directly without the PCB holders.

Alternately, you print different kossel angle brackets where you can adjust the pulleys, like https://www.thingiverse.com/thing:1267034.

Personally, I'd go with the alternate carriages.

Danal

These are openSCAD, you could use them as is, or tweak them. They have a belt tensioner built in. I use them on my "Big" delta: https://www.thingiverse.com/thing:2795329

Also, I have an AKL+ where I use the PCBs from Escher/Duet between the stock plastic parts and the HWIN (clone) rail carriages... yes, the belts are slightly out of line when the carriages are at the very top. This doesn't seem to affect anything when printing.

Gone2Far

What I did on my Anycubic was that I stuck the carriage spacers underneath and didn't worry about it. Worked fine. The carriage is rarely near either pulley unless homed; during prints it's usually much closer to the middle of the rails.

The smart effector is such a win that noone should hesitate to install it if possible.

mihaitintea

@dc42 Hello

Eventually I followed your initial advice for mounting the Delta Smart PCB adapters on top of the Kossel stock carriage adapters, using longer M3 screws.

Thank you again for your kind advice.

mihaitintea

@oliof Hello,

I followed DC42's advice about mounting the Delta Smart PCB plates on top of the stock Kossel carriage adapters, and that gave me a breather while I am preparing for a longer shot by printing custom adapters to replace Kossel's. Thank you for advisory.

Danal

Tons and tons of prints like this. Seems to make work fine. AKL+.

Veti

if you install noise dampeners on your stepper motors you will negate the offset at the bottom

dc42

@veti said in Delta smart effector+Haydn Magballs carriage mount:

if you install noise dampeners on your stepper motors you will negate the offset at the bottom

Or just loosen the grub screw on the motor pulley and move the pulley along the shaft a bit. The top idlers are more challenging if the shaft and the idler pulley have been turned from a single piece of material. But I prefer to use toothed idlers anyway.

Veti

@dc42 said in Delta smart effector+Haydn Magballs carriage mount:

Or just loosen the grub screw on the motor pulley and move the pulley along the shaft a bit.

unfortunatly on the AKL+ there is no room to move the pulley back without the dampener