3-D printed WDT tool (Umikot)

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#1: Post by JHCCoffee »

atruelunatic wrote:Also use a 3D printed spirograph WDT after using manual WDT for a month. I'm really liking it, it's much faster and I'd also say more even.
Is it this one https://www.printables.com/model/481587 ... o-wdt-tool

How did the printing and assembly process go? Was it easy? Any hiccups? How long did it take you to do? What material did you use? Total cost?

...split from Weber Moonraker? by moderator...


#2: Post by atruelunatic »

That's the one. Printing and assembly were surprisingly easy.

I followed the recommended settings in the description and had 3 out of 3 success rates (friends requested some as well).

I use an Ender 3 V2 using Hatchbox PLA filament.

To give you an idea of cost:
3D printer - $230 (https://www.amazon.com/dp/B07FFTHMMN)
1kg if filament - $25 (https://www.amazon.com/dp/B00J0ECR5I)
Needles - $10 (https://www.amazon.com/dp/B07FBMYFS7)
Screws - $8 (https://www.amazon.com/dp/B01E6EIC2S)

If you already had printer and filament, it's just about $20. The print time was about 21 hours.

Could be cheaper if you hunt for better pricing on the needles and screws, but I just got whatever I could find on Amazon to get it quickly.

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#3: Post by yakster »

I really like the looks of that one, I was going to print a Robot Planetary Gear WDT tool, https://www.thingiverse.com/thing:5398558 but may have to change my mind. I wonder if I'll have to check the dimensions on it for the Robot basket.

I recently got a 3D printer, my son set it up while I was out of town and printed a few things, so far I've only printed the Robot Tamper Leveler which came out great. https://www.tinkercad.com/things/fkHRsg83nVP

I'm holding off on printing anything until the recent heatwave is over.

LMWDP # 272

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BaristaBoy E61

#4: Post by BaristaBoy E61 »

atruelunatic wrote:That's the one. Printing and assembly were surprisingly easy.

If you already had printer and filament, it's just about $20. The print time was about 21 hours.
... And you're surprisingly brave! :lol:
"You didn't buy an Espresso Machine - You bought a Chemistry Set!"


#5: Post by luvmy40 »

I printed the mechanism this morning and it turned out perfectly. I used the cheapest junk, recycled PLA filament I have because I have not had great luck with print in place bearings in the past.

This printed on a Creality Ender5 S1. I used the suggested print parameters and ran it at 60mm/s print speed.

I am now printing the spinner ring and handle.

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Team HB

#6: Post by RapidCoffee »

I've been using the Umikot WDT tool for a couple of weeks, and I like it. :D It distributes and levels the grinds, quickly and consistently.

If you don't have access to a 3-D printer, services like Treatstock will print the model for a nominal fee (as little as $20).

Be prepared to spend an hour or so on assembly. The needles must be cut to the correct length, and you may need to drill out the needle holes for proper insertion. Assembly instructions are excellent.

Thanks to Vincent (redfoxdude on Printables) for making this design available!


#7: Post by luvmy40 »

Here's the completed, 3D printed Umikot WDT tool.

I had everything on hand to assemble this, so $0.00 out of pocket for me.

I did have to file the ID on the base ring so it did not pull the filter basket out of the portafilter, but other than that and a little food safe lube on the planetary gears, this went together and works perfectly right off the printer.

Capuchin Monk

#8: Post by Capuchin Monk »

luvmy40 wrote: a little food safe lube on the planetary gears,
Wouldn't that attract more dust and stray grounds? My recently purchased Etsy version doesn't have any lube and spins fine.


#9: Post by luvmy40 replying to Capuchin Monk »

It might, but when I say "a little", I mean a very small amount on the end of a toothpick spread top to bottom in one spot then distributed by spinning the mechanism for a few minutes. I doubt there's enough hold any grounds and if you are getting grounds up that high, you are spinning far too vigorously.


#10: Post by Newdent »

Very cool looking bit of kit. Have a lot of love for the people creating these and putting the designs up for free