1 Topic by lt72884 (edited by lt72884 2019-05-01 04:03:55)

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Topic: circles and new nozzle

So, the davinci is having issues printing a decent circle. I have noticed that if the cirlce is created by vertivle layers being built up until a circle forms, they are great, but if it draws the circle first, it looks odd and malformed. I can get a pic soon.

What can i do to get it to print circles better? it used to print them pretty good. (in the pics provided, notice how the half circles are terrible. BUT it used to print good circles like the small radius gauge pic i provide

also, is there any way to replace the nozzle on this or do i have to buy an entirely new extruder?

thanks

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2 Reply by carl_m1968

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Re: circles and new nozzle

Try printing an actual cylinder and measure its x and y dimensions. If they are different then that will reveal an issue.

As for the nozzle unless you swap to an E3D horned the only way you replace the nozzle is to order the entire hotend part from xyz.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

3 Reply by lt72884

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Re: circles and new nozzle

dang, they sure make it complicated to replace the nozzle haha. Good thing i have a CR10 as well.

Ok, here is a pic of a cylender. Its got some odd bulges on it, granted i do not know if that is in the x or the y because i forgot which way it printed haha. one axis reads 23.33mm and the other axis reads 22.8.

thanks

http://soliforum.com/i/?geiA6Jj.png

4 Reply by carl_m1968

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Re: circles and new nozzle

Look at the bearing mounts in the top of the machine for the rods that the belts roll on. One or more of those is cracked or broken. Also check to make sure your gantry is square. Pull it full forward and make sure both ends meet the front of the machine at the same time. If it does not then one of your belts have skipped one or more teeth.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

5 Reply by lt72884 (edited by lt72884 2019-05-01 23:20:31)

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Re: circles and new nozzle

ok, ill check the bearings and wheels. As for the gantry, i know the z axis is square. i placed the power brick under it and and it lays parallel with it. As in, i put power brick on the build plate, then use controls to lower the z axis and it lays completly flat.

ill check the places you told me to though.

thanks

EDIT:

the print bed meets the front squarly. so i think we are good there. i will check the mounts next

thanks

6 Reply by lt72884

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Re: circles and new nozzle

ok, im not seeing which motor mounts you speak of. Do you happen to have a photo?

thanks

7 Reply by carl_m1968

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Re: circles and new nozzle

The rods that the belts roll on fit into bearing cups in the walls of the machine. Make sure those cups are not worn, damaged, or have play.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

8 Reply by lt72884

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Re: circles and new nozzle

carl_m1968 wrote:

The rods that the belts roll on fit into bearing cups in the walls of the machine. Make sure those cups are not worn, damaged, or have play.

ok, thank you. i will check those out and see what i find.