AWD motor mounts

[floral moat]

i tried with v slot profile + mgn12 and carbon with mgn9, both cap at around 5000mm/s2, I have 2 spare motors and a lot of pulleys and idlers, even 10-12m or 6mm belt, that's why i'd like to try awd 6mm, but if 9mm is better for this size of machine, then waiting a a couple of weeks for the parts I still need it's worth it

[cobalt jasper]

I'd definitely say you could see some improvements at 9mm,

fwiw with a full metal gantry 9mm (2wd), stock X extrusion on a 255 printer i run 230hz

[floral moat]

I tried going higher over 200Hz, I can get better input shaper recommendations ~6k but those are just on paper the print quality goes down, my guess the length of the belts and the flimsiness of the carbon tube are my biggest weaknesses, that's why I was considering awd because that would basically reduce the length of the belt in tension by 50%, netting me accelerations similar to a printer around the size of yours

[cobalt jasper]

Yeah, could be worth a try, Effective belt length does have a huge impact

[lime wigeon]

Hello everyone, does anyone know what the 7th and 8th motors do for the 8WD mod? I can't figure it out with their CAD file

[green helm]

They’re extra motors for the hybrid system

So instead of having 2 for hybrid y assist you have 4

[floral moat]

has anyone built the awd full metal front? they are obviously wrong, the hole is not big enough to mount a motor there, is the version from github outdated?

[lime wigeon]

How does it affect the quality of one axis is exponentially faster than the other, are you still limited by the X axis movement speeds? I was quite curious on the side effects and what benefits it would have to increase just one of them

[cobalt jasper]

Your Y is way heavier, so fx. in my case on 2wd, my Y shaper recommends about 10k accel, while my X recommends 23k, adding some more motors to Y would help boost that so its not /2

Drawbacks would probably be syncing? and some kinda weird and sub optimal belt pathing, but I don't think zerog as a project is on an extremely sensitive belt path like that

[lime wigeon]

Where do I find the max accelerations? I was running the motor test and just went for a value were I wasn’t skipping any steps but higher than the standard 10k acc

[cobalt jasper]

I used the wrong wording there, 'max' is ofcourse just whatever you can run and have reasonably quality to your standards, i mean what the shaper recommends me, which for your IS can be seen here
https://e-z.tools/gu0b1338.png

[green helm]

When I had it on mine X and Y were about the same if anything Y was more than X cause I have 6 motors for Y and 2 for X

[little pike]

Do you run 9mm belts with FMG and the AWD mod?

Or do you have 6mm belts which fit up to the front metal stanciu mod

[cobalt jasper]

Not AWD, just 2nd 9mm

[floral moat]

my problem is my printer is based on ender 5 plus and with just 2 motors the legth of the belt is to much, I will combine the 2 mods tomorrow in fusion and see what I get

what's the math behind this 2.5/17.5 offset between the motor and the toothed idler, I would need at least 1-1.5mm more room for the FMG AWD combination, otherwise the plate cutting would overlap, it's not tragic, but it's not ideal if I keep these measurements
@lunar cedar how did you calculate this?

[lime wigeon]

Lol that explains things, I was going way beyond that I should’ve paid more attention to the charts 🫠😅

[lime wigeon]

Yeah the way nick explained it makes sense, I wasn’t thinking of the extra weight the Y has to carry compared to X

[green helm]

Are you looking at the metal version or cutting the plastic one out of metal? Stanciu made a metal version that works with turtles FMG mod

[lime wigeon]

Once I add AWD imma see if I can adapt a tool head or make one myself for the NG so I can do the Mad Max upgrade, I might actually have to get an octopus board for everything I’d wanna upgrade 🫠😅

[floral moat]

I am looking for a metal version that works with FMG but the step files from git can't work the way they are right now

[green helm]

Which git are you looking at?

[floral moat]

https://github.com/Stanciu-Andrei/PrinterMods/blob/main/AWD_Mod/AWD_MotorMounts_Full/AWD_Metal/CAD/AWD_Metal_Front.f3d

[green helm]

Ahh okay yeah that’s the latest one I know of working. It may need some adjustments idk how he did it but he hasn’t been active in awhile

[floral moat]

the first thing I noticed was the hole for the motor being to small, 10mm instead of 22mm. I will adjust the design following Turtle's FMG part choice

[floral moat]

I tried to follow Turtle's part choice with 1 major exception I had to use something like this https://www.aliexpress.com/item/1005008132248267.html to mount the motor to the top plate and to screw the bottom plates and printed part into it, how does it look?

I'll polish it tomorrow and order the plates and test it to see how it works in a couple of weeks when I get the parts

[little pike]

are you doing 6mm belts?

for the 9mm plates i did not have that issue in the drawings

actually my bad, i see those are stancius mounts

[low plover]

Does your magneto work on the front motor mounts?

[clear widget]

Yes, the cutter presses against the back of the front left stepper but I also have avoid anything printing in that space so that the cutter's arm doesn't hit the side of the motor. Luckily, it doesn't impact leveling or scanning and the hit area is relatively small.

Also, I don't generally print at the 400, 0 corner. 😅

[floral moat]

I heavily modified the mounts, changed the tooling as well to fit better with the metal design, I ordered the laser cut plates to test them, I will share the project after I test it and correct it if needed, in the meantime if someone wants to play around with the design ping me and I will share them with you

[little pike]

@cobalt jasper I saw you did metal AWD so im calling upon you. I am doing 9mm belts and am trying to interpret stancius mod. I have 8mm bore motors, and the BOM calls for: 9mm tall gt2 20 tooth pulley and - GT2 20 tooth motor pulley for 6mm belt. Which ones need a 5mm bore and the others 8mm to match my motors

[cobalt jasper]

I have not done AWD

[little pike]

damn it. who has LOL

maybe i clicked the wrong build log

[last viper]

Has anyone gotten away with using aluminum spacers with M3 screws instead of the wonky M3 x 5mm shoulder screws? I’d like to buy in the U.S. and all I’m finding are M3 x 4mm shoulder screws. But, I can get 5mm OD spacers with a 3.1mm ID. Think that would work?