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whosawhatsis  
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 More options Sep 23 2012, 12:36 pm
From: whosawhatsis <whosawhat...@gmail.com>
Date: Sun, 23 Sep 2012 09:35:58 -0700
Local: Sun, Sep 23 2012 12:35 pm
Subject: Re: HBP Cupcake

The platform has six holes, I just used the corners on one side and the middle on the other. I put springs for leveling (much easier with 3-point, as they will always be coplanar unlike a 4-point) under the PCB. The PCB holes are countersunk with the glass laid on top. I'm holding the glass down with kapton tape along two sides.

On Sunday, September 23, 2012 at 9:31 AM, Joheinz wrote:
> Can you send me some photographs how you did the 3 point mount? Did
> you drill the mirrors?
> Thanks,
> Markus

> 2012/9/23 whosawhatsis <whosawhat...@gmail.com (mailto:whosawhat...@gmail.com)>:
> > I use a 3-point mount with a kapton-on-glass (4-inch square mirrors I found
> > on amazon) suface, and it works great. If you're going for PLA though,
> > you'll probably find that blue painter's tape on glass without heating gives
> > you the best results.

> > On Sunday, September 23, 2012 at 4:35 AM, Joheinz wrote:

> > Hi *,

> > I have the HPB installed on a Cupcake and awhile ago I drilled the 4
> > corner holes so that I can use countersink screws to avoid bumping
> > into the screws when making large prints. Unfortunately I did not do a
> > brilliant job with my Dremel, and now I'd like to commission a panel
> > service to recreate the aluminium plate for me with 4 countersink
> > holes in the proper places.

> > Questions:

> > - should I use 4 holes or six to prevent warping of the plate? If
> > using 6, how would I go about leveling the platform?
> > - which alumunium works best, which thickness? Or another metal altogether?
> > - is it sufficient to use ordinary heater paste/thermal paste to
> > connect the plate to the PCB of the build platform?
> > - does someone have the measurements for the HBP? Which diameter, how
> > far is the distance of the screws (center) to the edges of the plate?
> > - I plan to go all PLA now, so I wonder if I should choose a
> > metal/kapton combination at all, or go for a glass plate. If yes,
> > which thickness has proven to work well?

> > Thanks,
> > Markus

> > --

> > --

> --


 
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