1 Topic by WRE

  • WRE
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  • Registered: 2015-10-03
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Topic: Maximum strength parts

Hello all,

I'm printing with a Da Vinci 1.0 - completely stock firmware and XYZ filament cartridges.

I've been playing with making some parts for my PWC that are put under some high loads. I originally tried making the parts with ABS to a limited success, in the end, all the ABS parts split between layers no matter what orientation the print was. I ended up printing the part in PLA which resulted in a usable part that now has several hours of use on it.

However, my smaller PLA parts have been warping and lifting from the bed whereas I never had much trouble printing with ABS. I also don't enjoy trying to pry PLA prints off the print bed. I have read online, through different forum posts, that ABS won't have a very strong layer bond unless it is printed at a fairly high temperature. A temperature higher than the stock XYZ firmware and stock filament prints at. If I switched to Repetier/Slicer and printed the ABS at a more suitable temperature, would I be able to achieve the layer strength that I achieved with the PLA?

Sorry if this has been discussed before, I tried hard to find information on this subject but didn't find much that was relevant and conclusive.

thank you for your help

2 Reply by batmaster

  • batmaster
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  • Registered: 2015-06-04
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Re: Maximum strength parts

PLA sticks much better with blue painters tape.  As for the ABs thing it is true that too low of a temperature will cause poor layer adhesion, but if you are using the xyz cartridges their ABS is different in formulation i believe and has its own temperature for use.

PLA is going to be alot more ridgid than ABS, but at the cost of brittleness and poor thermal stability, if pla gets hot(like inside of a car) it goes all soft again and warps.  ABS should be better for structural things, but ultimately with any printed part its never going to be as strong as a proper moulded part so you need to expect less.

3 Reply by Weekend Avenger

  • Weekend Avenger
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  • Registered: 2014-06-17
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Re: Maximum strength parts

Having tried a few different types of ABS, I can confirm that DaVinci's ABS doesn't have as good of a layer bond as any of the others I've tried. It does seem to have less warp than most though, but I've had large objects crack from just the internal stress when using their filament.

There are other ways around the issue, but obviously with a change to repetier and a slicer of your choice, you are only limited to the machines design and not XYZ's whims.

4 Reply by scobo

  • scobo
  • scobo
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  • Registered: 2014-08-09
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Re: Maximum strength parts

ABS treated with acetone vapour is incredibly strong, almost as strong as moulded parts.
If strength is critical, I would consider this route.

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 Reply by batmaster

  • batmaster
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  • Registered: 2015-06-04
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Re: Maximum strength parts

yea ive just started doing this, it does create a stronger better looking part.

6 Reply by scobo

  • scobo
  • scobo
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  • Registered: 2014-08-09
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Re: Maximum strength parts

That's true. Forgot to mention you get a lovely smooth, shiny finish too.

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