Raft bond too strong

[carpenter2015]

When printing with rafts I'm having trouble separating the piece.

The raft tears pieces out of the print of or leaves parts of itself permanently attached as though it is a part of the print.

Are there any settings to reduce the strength of the bond? I'm using Makerware and CTC 3D and PLA.

[Mjolinor]

Some slicers allow you to specify the raft to model distance. I have no idea if Makerware does as I have never used it.

[carpenter2015]

Some slicers allow you to specify the raft to model distance. I have no idea if Makerware does as I have never used it.

I haven't found an option, just using it as it was bundled with the printer.

Having a look at Slic3r at the moment it seems more flexible than Makerware

[EagleSeven]

When printing with rafts I'm having trouble separating the piece.

The raft tears pieces out of the print of or leaves parts of itself permanently attached as though it is a part of the print.

Are there any settings to reduce the strength of the bond? I'm using Makerware and CTC 3D and PLA.

What bed surface and adhesive are you using ??
If you have a Glass plate on bed and are using Aqua-net spray, then there should be No problem.
If not, that's what you Need !

Note: Let bed completely Cool before removing object, will help with large area objects
Lower temp reduces bond

[Mjolinor]

What bed surface and adhesive are you using ??
If you have a Glass plate on bed and are using Aqua-net spray, then there should be No problem.
If not, that's what you Need !

Note: Let bed completely Cool before removing object, will help with large area objects
Lower temp reduces bond

This is relevant because?

He is having problems taking the raft from the work piece, not the raft from the bed.

[EagleSeven]

Oops, Sorry !
Read it Too fast, since I had a print going .

We have never had that problem with Makerware version-2.4 but maybe later versions create the Raft differently ?
I had other problems with version 3.7 when tried it. so went back to 2.4 .


Note: <<< I just noticed that I'm Now a 'Technologist' ! What ever that is ?? LOL
I've Never been one of Those Before ! Does that mean I get a Pay-Raise ? LOL

[Bobby Lin]

Hi! I have never used Makerware as a slicer. I used Slic3r software for slicing my 3d models. However, I found a link about configuring the raft settings for Makerware, this might come in handy for you.

[carpenter2015]

Hi! I have never used Makerware as a slicer. I used Slic3r software for slicing my 3d models. However, I found a link about configuring the raft settings for Makerware, this might come in handy for you.

Thanks Bobby that's very useful, I was trying Slic3r yesterday and getting some acceptable results without needing rafts so this may be the better option.

@Eagleseven I'm still using the blue tape and original bed that the machine came with, glass bed seems to be recommended in all my trawling of forums etc. so will probably get one.



JC

[EagleSeven]

@Eagleseven I'm still using the blue tape and original bed that the machine came with, glass bed seems to be recommended in all my trawling of forums etc. so will probably get one.
JC

We found a 10" X 12" X 3/32" glass sheet at Lowes-hardware and had them cut it to 2ea 6"X9" pieces.
Cost less than $3.

[curious aardvark]

the raft of makerware 2.4 is pretty easy to remove. Althouhg I did find on longer porints with abs - becasue the bed was so hot the raft and print fused into one piece.
Yet another reason for pla :-) No rafts necessary.