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Does anyone already have installed the Bondtech Extruder/Feeder?

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Hi everyone!

I still have some problems with grinding/slipping filaments sometimes (especially if the infill speed differs too much from the wall speed), therefore I searched the internet for an alternative and found the BondTech Extruder/Feeder.

It's relatively expensive (aprox. 180€) - therefore I am looking for someone who already tried it at an Ultimaker.

Cheers!

Edited by Guest

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After checking the videos and all. The system it's a double grip without tensioners a mirror gear with bearing and all connected to a planetary geared nema 17. With a dia 8 shaft.

For the price the solution seems nice. I would love to see a dia 5 solution so there's no need to use the planetary geared motor.

Also @bondtech user seems like opened an account so he might answer better.

Many details are at youmagine and the gear designs.

https://www.youmagine.com/designs/bondtech-extruder--2

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There is this design I'm using that has the same principle, that is, the double geared coordinated system, and it doesn't use planetary geared motor.

I made a reduced version that doesn't use the belts, and instead uses 2 rubber wheels printed in ninjaflex filament. It's working pretty great.

DSC02347_25pp.thumb.jpg.e4755c018fdd89f777219cb70eac4fe3.jpg

I haven't uploaded my mods anywhere yet, but will do in a couple of days... Tell me if it interests you.

DSC02347_25pp.thumb.jpg.e4755c018fdd89f777219cb70eac4fe3.jpg

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There is this design I'm using that has the same principle, that is, the double geared coordinated system, and it doesn't use planetary geared motor.

I made a reduced version that doesn't use the belts, and instead uses 2 rubber wheels printed in ninjaflex filament. It's working pretty great.

DSC02347_25pp.thumb.jpg.e4755c018fdd89f777219cb70eac4fe3.jpg

I haven't uploaded my mods anywhere yet, but will do in a couple of days... Tell me if it interests you.

 

Are the geared drive wheels driven of the extruder motor?

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I still think that a feeder with dual metal grip could make a cleaner feed, grinding it less. The problem I see with the bondtech it's that there's no quick release. But if the inner design it's really good it might be perfect for flexible filaments. So far the feeder I want to try first it the one @meduza it's working on that has a 1.8:1 gear with gt2 pulleys.

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Just a quick draw without the proper tools of an idea for a cheaper Bond-tech solution. Also it solves one problem I think bond tech imo since it needs exact pressure for the feeder (so perfect filament) and to remove the filament you need to use the motor (no quick pull out there).

5a331064d4e4b_Capturadepantalla2015-08-19ala(s)11_53_10.thumb.png.04184fb2d818a3be25ac9d3e2e4cb0b9.png

Ofc the gear it's just a fast draw, it might be better to make one more solid with more teeth, or use a metal one like the reprap feeders (Been trying to find the size or specs without luck but most of them are 10.7-11mm so it might work with that).

Mk7 leaves a minimum air of 2.75mm, so with the maximum pressure it won't crash it less than that.

Just dropping ideas.

5a331064d4e4b_Capturadepantalla2015-08-19ala(s)11_53_10.thumb.png.04184fb2d818a3be25ac9d3e2e4cb0b9.png

Edited by Guest

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the downsides of the bondtech are in my eyes:

 

  • variable axis distance (WTF?!)
  • no quick-release
  • high price

 

the following is my first approach of a low-cost solution and uses only available parts, in theory it should be easy to release the filament too:

DSC_0505.thumb.JPG.2fcc0c0ea5e8f7cf99829e565bb403ef.JPG

you can easily change the distance between the two driving gears because of the little tensioner gear.

please feel free to criticize!!!

DSC_0505.thumb.JPG.2fcc0c0ea5e8f7cf99829e565bb403ef.JPG

Edited by Guest

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Just a quick draw without the proper tools of an idea for a cheaper Bond-tech solution. Also it solves one problem I think bond tech imo since it needs exact pressure for the feeder (so perfect filament) and to remove the filament you need to use the motor (no quick pull out there).

Ofc the gear it's just a fast draw, it might be better to make one more solid with more teeth, or use a metal one like the reprap feeders (Been trying to find the size or specs without luck but most of them are 10.7-11mm so it might work with that).

Mk7 leaves a minimum air of 2.75mm, so with the maximum pressure it won't crash it less than that.

Just dropping ideas.

 

You could have the non driven side swing out like roberts feeder. you would just need to make sure the gears mesh properly. the swing out section would be quite large but you could get it to work.

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yes you are right, i didn't thought about that - i will remove the spring. but i still don't like the idea of a variable distance between the axes of two gears... that's just no as it should be.

 

That's true, I have seen one that use a worm gear so it didn't matter if the distance changed. I may have to find the picture.

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