D-bot reworked, very happy with results achieved

[claustro]

I would like to say thank you to this forum and in particualr to @deckingman @mrehorstdmd @Phaedrux for the help in rebuilding my d-bot.
I switched to 3 lead screw using deckingam setup. The bed is guided by only two carts on opposite angles of the printer each cart is made of 3 wheels.
I choose to use a bed with 3 levelling screws ( in the future I would switch to levelling the bed by the lead screws) the levelling screws is mounted using mrehorstdmd setup .
The bed is a 330x340 die cast pei covered 8mm thick. I switched to a 220 volts heating element from Kenovo
Now I cna print on 100% of the bed surface and I swithced off the
This is my first real print and I ma very happy with it I also disabled mesh grid compensation that for now seems useless

I still have to tweak a lot of stuff but the start seems promising!!

[mrehorstdmd]

Nice!

Put a bead of high temperature silicone around the edge of the bed heater (per the Keenovo manual) or be prepared for it to start peeling off the bed plate in a year or two.

[Phaedrux]

Well done. Another great example of using the DBot as a base for further refinement.

[deckingman]

@claustro

[claustro]

@mrehorstdmd said in D-bot reworked, very happy with results achieved:

Nice!

Put a bead of high temperature silicone around the edge of the bed heater (per the Keenovo manual)

Thanx for the suggestion I saw about silicone on the manual I have to buy it!

[zapta]

@claustro said in D-bot reworked, very happy with results achieved:

Thanx for the suggestion I saw about silicone on the manual I have to buy it!

Do you happen to have a link to the Keenovo manual? I have a Keenovo heater and would like to apply this high temperature silicone.

Edit: is this a reasonable choice for sealant? https://www.permatex.com/products/adhesives-sealants/sealants/permatex-clear-rtv-silicone-adhesive-sealant/

[Phaedrux]

@zapta said in D-bot reworked, very happy with results achieved:

https://www.permatex.com/products/adhesives-sealants/sealants/permatex-clear-rtv-silicone-adhesive-sealant/

Yes that would work.

I used this one since the temp range was even further above what I would be using. I figured it would have more longevity: https://www.permatex.com/products/gasketing/gasket-makers/permatex-high-temp-red-rtv-silicone-gasket/

You can also find high temp RTV silicone with copper for greater thermal transfer potential. https://www.permatex.com/products/gasketing/ultra-series-gasket-makers/permatex-ultra-copper-maximum-temperature-rtv-silicone-gasket-maker/

https://www.keenovo.com/User's-Manual-Keenovo-Flexible-Heaters.pdf
Here's the keenovo manual.

[zapta]

Thanks @Phaedrux, this is very useful. My thinking is that clear RTV will allow me to inspect it over time but chances are that once I apply it, I will never look at it again. BTW, I think I have 81160 laying around, used it once to glue a thermistor to a heated bed.

[Phaedrux]

@zapta said in D-bot reworked, very happy with results achieved:

once I apply it, I will never look at it again

Once it's applied I don't think you could do anything to get it off again even if you wanted to, at least not without damage to the heater.

[webdad]

@claustro said in D-bot reworked, very happy with results achieved:

deckingam

I'm planning on doing much the same thing to my D-Bot this spring/summer (if I can wait that long). Do you have links to the lead screw mod that you did?

The Keenovo heat bed was in my original build. Really focusing on the 3 lead screw implementation as well as incorporating a BLTouch (potentially).

Thanks!

[claustro]

I'll try to post all the stuff on thingverse , give me some days.

[webdad]

@claustro Great! Thanks!