Parts that I printed are too big

dsl158 · Post by **dsl158** » Sat Oct 31, 2015 3:48 pm

Ive been trying to print out some thing, for example I was trying to print an e3d v6 mount but the upper plate was too big and wouldnt fit. Some one said I had a XY scaling issue but I dont know what that is and was wondering if anyone could help me fix this.

Tincho85 · Post by **Tincho85** » Sat Oct 31, 2015 3:56 pm

Hi, maybe it's not a XY issue. Print a 10x10x10 cube, with one perimeter, 0% infill and no top layer. Measure it.

Oh, and did you fix your tower problem? If so, please update your thread so others can learn.

dsl158 · Post by **dsl158** » Sat Oct 31, 2015 3:57 pm

Tincho85 wrote:Hi, maybe it's not a XY issue. Print a 10x10x10 cube, with one perimeter, 0% infill and no top layer. Measure it.

Oh, and did you fix your tower problem? If so, please update your thread so others can learn.

Which one ?

Tincho85 · Post by **Tincho85** » Sat Oct 31, 2015 3:59 pm

This one.
http://forum.seemecnc.com/viewtopic.php ... 405#p78405

and check this thread, it might help you.
http://forum.seemecnc.com/viewtopic.php?f=54&t=1163

dsl158 · Post by **dsl158** » Sat Oct 31, 2015 4:02 pm

Tincho85 wrote:This one.
http://forum.seemecnc.com/viewtopic.php ... 405#p78405

and check this thread, it might help you.
http://forum.seemecnc.com/viewtopic.php?f=54&t=1163

There is no answer for that one yet

dsl158 · Post by **dsl158** » Sat Oct 31, 2015 4:16 pm

Tincho85 wrote:This one.
http://forum.seemecnc.com/viewtopic.php ... 405#p78405

and check this thread, it might help you.
http://forum.seemecnc.com/viewtopic.php?f=54&t=1163

Ok I printed it. its dimension are 11.6 (H) x 11.6 (l) x 11.2 (W)

Tincho85 · Post by **Tincho85** » Sat Oct 31, 2015 7:58 pm

Do you have the ball-cup arms or the previous version?
If you have the ball cups and your arm length is set to 269 your prints will be bigger. Because your printer thinks it has to move further than it actually does. The ball-cup arms are 290mm long.

But... I don't think that changing the arm length will change the height of a print, and you are printing taller also.

dsl158 · Post by **dsl158** » Sun Nov 01, 2015 1:18 am

Tincho85 wrote:Do you have the ball-cup arms or the previous version?
If you have the ball cups and your arm length is set to 269 your prints will be bigger. Because your printer thinks it has to move further than it actually does. The ball-cup arms are 290mm long.

But... I don't think that changing the arm length will change the height of a print, and you are printing taller also.

I have the cheap skates

dsl158 · Post by **dsl158** » Sun Nov 01, 2015 2:44 pm

Tincho85 wrote:Do you have the ball-cup arms or the previous version?
If you have the ball cups and your arm length is set to 269 your prints will be bigger. Because your printer thinks it has to move further than it actually does. The ball-cup arms are 290mm long.

But... I don't think that changing the arm length will change the height of a print, and you are printing taller also.

After it to 290 the 10x 10 x 10 cube measures 10.4 (L)x 11.7 (H) x 10.8 (W)

stonewater · Post by **stonewater** » Sun Nov 01, 2015 10:19 pm

if your steps per mm are wrong in EEPROM everything will be the wrong size... 92.4 is what mine is set for I believe,

Tom C

dsl158 · Post by **dsl158** » Sun Nov 01, 2015 11:30 pm

stonewater wrote:if your steps per mm are wrong in EEPROM everything will be the wrong size... 92.4 is what mine is set for I believe,

Tom C

Mine is set to 93 is that enough to make a huge error

IMBoring25 · Post by **IMBoring25** » Sun Nov 01, 2015 11:39 pm

If you have a v2 and that's the basic steps per mm instead of the extruder steps per mm, yes that is enough to make a huge error. It should be 80.

dsl158 · Post by **dsl158** » Mon Nov 02, 2015 7:18 am

IMBoring25 wrote:If you have a v2 and that's the basic steps per mm instead of the extruder steps per mm, yes that is enough to make a huge error. It should be 80.

that just said 92.4

Tincho85 · Post by **Tincho85** » Mon Nov 02, 2015 8:30 am

I think he meant steps per mm and not extr. Steps per mm.
By default steps per mm is 80 and extr. 90 something. So unless you've changed it on purpose, it should be OK.

Share your eeprom. I'm no expert but others might see if something is wrong.

Post by **geneb** » Mon Nov 02, 2015 9:23 am

The diagonal rod length for the new ball-cup arms is 290.8.

g.

dsl158 · Post by **dsl158** » Mon Nov 02, 2015 10:46 am

Tincho85 wrote:I think he meant steps per mm and not extr. Steps per mm.
By default steps per mm is 80 and extr. 90 something. So unless you've changed it on purpose, it should be OK.

Share your eeprom. I'm no expert but others might see if something is wrong.

When I get home I should change the Steps per mm to 80. Correct? Because I recently changed to repetier host so I wouldn't be surprised if I forgot to change some settings and right now the steps per mm are 92.4.

stonewater · Post by **stonewater** » Mon Nov 02, 2015 10:54 am

well I gave you the extruder steps per mm not steps per mm.... sorry. thanks guys for stepping in here.

Tom C

dsl158 · Post by **dsl158** » Mon Nov 02, 2015 10:59 am

stonewater wrote:well I gave you the extruder steps per mm not steps per mm.... sorry. thanks guys for stepping in here.

Tom C

hah no problem man

Post by **geneb** » Mon Nov 02, 2015 11:30 am

The drive steps per mm is 80. NEVER change this. The extruder steps per mm *default* is 92.4 (or so). That CAN be changed and should be as part of the extruder calibration process.

g.

dsl158 · Post by **dsl158** » Mon Nov 02, 2015 2:01 pm

geneb wrote:The drive steps per mm is 80. NEVER change this. The extruder steps per mm *default* is 92.4 (or so). That CAN be changed and should be as part of the extruder calibration process.

g.

Thank you for the clarification I was a little confused. Ill be home in 3 hours or so and I will give it a try.

dsl158 · Post by **dsl158** » Mon Nov 02, 2015 9:33 pm

It was the steps per mm. After setting it to 80 the prints were good

dsl158 · Post by **dsl158** » Mon Nov 02, 2015 10:51 pm

Wait now that I changed it Im getting this weird level shifting

Tincho85 · Post by **Tincho85** » Mon Nov 02, 2015 10:55 pm

If not already, change your rod length back to 269 and do the Z calibration process again.

dsl158 · Post by **dsl158** » Mon Nov 02, 2015 11:15 pm

Tincho85 wrote:If not already, change your rod length back to 269 and do the Z calibration process again.

its already at 269

dsl158 · Post by **dsl158** » Tue Nov 03, 2015 10:55 am

http://imgur.com/a/autFo

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