1

Topic: on/off switch on bed heater possible to prevent warping?

Wondering if I splice in a on/off switch to my bed heater, so that I can turn it off after the first few layers to prevent warping?  thought?

2

Re: on/off switch on bed heater possible to prevent warping?

hansen644 wrote:

Wondering if I splice in a on/off switch to my bed heater, so that I can turn it off after the first few layers to prevent warping?  thought?


if your bed gets cool during printing your part will come loose. The heat actually makes ABS stick to the glass it is not just the glue alone.

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

Re: on/off switch on bed heater possible to prevent warping?

Gotcha.  If I switch to repeter software what temps would you recommend  on what layers to help prevent warping?

4

Re: on/off switch on bed heater possible to prevent warping?

I find dropping the bed temp by about 5°C after the 1st layer can help with certain prints.
You can achieve this with Cura on stock firmware.

Davinci 1.0 with repetier firmware & E3D V6 Lite
Anycubic Photon DLP printer, Einscan-S 3D scanner
Simplify3d, 123D Design, Meshmixer
http://www.thingiverse.com/scobo/designs

5

Re: on/off switch on bed heater possible to prevent warping?

Ok thanks.

6

Re: on/off switch on bed heater possible to prevent warping?

hansen644 wrote:

Gotcha.  If I switch to repeter software what temps would you recommend  on what layers to help prevent warping?

Just use Elmers glue Sticks not the UHU  stuff and set your bed to 110.

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.

7

Re: on/off switch on bed heater possible to prevent warping?

Hansen,

What really has helped me is going back to glass+uhu glue as well as throwing a blanket over the printer and resist the urge to constantly look at the print.  Also using a lower infill might help, but you should consider what you need the part to do (strength, durability)  in order to develop lowest possible infill.

I have also heard that many are building a wall 1 layer thick as tall as the part to keep hot plastic hot. I have not tried this however.

Repinci 1.0 + Repetier host

8

Re: on/off switch on bed heater possible to prevent warping?

Thanks. I have been using glue and 110c  but still no luck

9

Re: on/off switch on bed heater possible to prevent warping?

Aluminum beds will warp! I have a Makerbot and mine is warped about .007" in the middle when hot.
If your bed is warped and you use thin glass and use to strong of clip to hold it down the glass will warp to the bed contour..
I print on Kapton tape & wipe it down with Acetone  before i start every morning. about every 80 hrs I scuff the Kapton with 220 wet or dry paper. My parts will not let loose very easy. sometimes I have to let the printer cool over night for the ABS to release.

Ultimaker S3.

10 (edited by dubbsd 2015-01-12 00:18:52)

Re: on/off switch on bed heater possible to prevent warping?

rockosmodlife
in reply to printing a wall the height of the part.
If you are running a dual extruder and are using both extruders in a print it will print a wall for each color
otherwise the filament will set in the nozzle to long and clog it.

Below is a print where I was using orange ABS in the left nozzle and Makerbot Dissolvable (HIPS) in the right
using the hips for support.

http://i.imgur.com/hY2cQnh.jpg

Ultimaker S3.