psyfor
Posts: 1
Joined: Tue Jan 28, 2020 11:32 pm

Elephant Foot Compensation

Tue Jan 28, 2020 11:34 pm

What is the best way to adjust for elephant compensation? In other software I have used in the past it is a single adjustment parameter and I was not able to find that in the software.

Ret
Posts: 78
Joined: Wed Feb 07, 2018 4:26 pm

Re: Elephant Foot Compensation

Wed Jan 29, 2020 10:52 am

The best way is to eliminate the problem, not compensate for it. Here are the top things you can do to eliminate elephant foot:

Level your bed and adjust your nozzle to bed gap
Reduce build plate temp and extruding temp
Improve cooling of your bottom layers
Last edited by Ret on Wed Jan 29, 2020 1:56 pm, edited 1 time in total.

User avatar
dkightley
Posts: 2255
Joined: Tue Mar 10, 2015 4:09 pm

Re: Elephant Foot Compensation

Wed Jan 29, 2020 11:14 am

The printing "defect" called elephant's foot is simply where the first layer that is printed on the bed is printed with a bed to nozzle gap that is less than the specified layer thickness...resulting in the plastic being squeezed out forming a small bead outside the model side.

The solution is to increase the nozzle to bed gap on the first layer so that you get less of a squish. This can be dome by simply adjusting the Global-Z by a small amount and doing a test print. Repeat until the squish is minimised.....but beware the model not sticking to the bed...which is why the first layer was squished down in the first place.

If you're happy with the level of your bed, then I suggest not doing a bed level....doing so might end up with the bed being less level! Depending on the material you are printing, adjusting the bed temperature either up or down may help the first layer to stick better with the reduced squish.
Doug Kightley
Volunteer at the National Tramway Museum http://www.tramway.co.uk
Railway modeller and webmaster at http://www.talkingtgauge.net

Ret
Posts: 78
Joined: Wed Feb 07, 2018 4:26 pm

Re: Elephant Foot Compensation

Wed Jan 29, 2020 2:16 pm

@dkightley elephant foot is not always specific to bed nozzle gap and bed leveling.

@psyfor don't get stuck on the idea that its only the gap/leveling and nothing else causing your issue. Heat can play a big factor in the elephant foot issue.

https://all3dp.com/2/elephant-s-foot-3d ... asy-fixes/

smoki3
Posts: 14
Joined: Thu Apr 19, 2018 4:28 pm

Re: Elephant Foot Compensation

Fri Jan 31, 2020 12:55 pm

Ret wrote:
Wed Jan 29, 2020 10:52 am
The best way is to eliminate the problem, not compensate for it. Here are the top things you can do to eliminate elephant foot:

Level your bed and adjust your nozzle to bed gap
Reduce build plate temp and extruding temp
Improve cooling of your bottom layers


So this is simply not right. To have a optimum of bed adhesion you have to press the filament onto the bed. Which have to lead to the elephant foot.
Sure for some filaments you can adjust the first layer height but this does only works for some easy printing filaments.

Ret
Posts: 78
Joined: Wed Feb 07, 2018 4:26 pm

Re: Elephant Foot Compensation

Fri Jan 31, 2020 4:52 pm

So this is simply not right.
You don't need to squish your first layer so much that it causes an elephant foot. That's simply bad practice and masking other variables/issues.

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