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HP-28S Battery Compartment Door

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HP-28S Battery Door
HP-28S Battery Door

HP-28S Battery Compartment Door

The redesign of the final HP-28S scientific calculator case is moderately complex and in actuality time drinking. In most circumstances the correct component broken is the HP-28S battery compartment door, so I distinct my first step became as soon as to salvage that re-designed.

  • Battery Door without metal plate right side view
    Battery Door with out steel plate upright aspect study
  • HP-28S Battery Door without metal plate angle view
    HP-28S Battery Door with out steel plate perspective study
  • HP-28S Battery Door
    Battery Door HP-28S
  • Battery Door right side view
    HP-28S Battery Door upright aspect study
  • HP-28S Battery Door left side view
    HP-28S Battery Door left aspect study
  • HP-28S Battery Door front view
    Front study HP-28S Battery Door
  • Battery Door from right
    HP-28S Battery Door from upright

Print discovering out section of battery door

The 3D-print of the HP-28S battery compartment door is being tested upright now (05/2020) from about a volunteers. I ranking reached out to some 3D designers asking what printing capability would possibly per chance be most productive in making this section. Watch below for PLA printing mumble (no longer). The reply is Selective Laser Sintering or SLS printing the utilization of polyamid (PA). The traits are sturdy and the pegs is also melted staunch down to contain the steel plate or battery contact, in location.

Having no skills with 3D printing, I’ve now realized that the next printing programs ranking certain advantages and disadvantages.

  • Fused Deposition Modeling or FDM printing
  • Stereolithography or SLA printing
  • Filament PLA printing (see below)

With FDM printing it’s no longer that you simply would per chance perhaps per chance per chance also like of to ranking the section mechanically resilient. The boom with printing by task of Stereolithography is with melting the topic cloth afterwards. Please decide up some printing corporations right here.

Cramped Assembly of Battery Compartment Door wished

You would per chance perhaps per chance also silent abet your current steel plate from the battery door. After printing the section, you upright re-insert the steel plate and soften down the 3 pegs, and voila you ranking gotten a brand contemporary battery door.

Downloads

  • 3D Viewable PDF (Adobe Reader wished)
  • After discovering out the STL file print, I will develop it readily available for download

PLA printing outcomes

Solutions from one Tester: PLA filament does no longer print totally. Adjusted were temperature and tempo of print after 3 tries, below photos direct the most productive it will pause. That is the limitation of an entry level 3D printer.

Supreme to utilize laser form 3D printer, hence SLS printing.

Filament PLA printing

SLS printing outcomes

On the new time June 12th 2020, the principle parts arrived and I must suppose the high-quality is moderately ideal. I compared the present with the contemporary printed version and I ranking to develop about a changes. However now I sourced a printing firm close by and development can also silent be basic sooner now.

Selective Laser Sintering or SLS printing

The day prior to this July ninth 2020, I indirectly had some time of from work to seize up the 2nd plot of printed parts. Very nice high-quality and the coloration is upright upright. The steel plate fits upright into the grooves and the 3 pegs are ready to be melted down. Obtain a scrutinize on your self. I added 2 drops of glue upright to be set below the steel plate.

  • Printed HP battery door with metal plate next to it
    Printed HP battery door with steel plate subsequent to it
  • HP battery cap with metal plate
    HP battery cap with steel plate
  • HP batterydoor installed
    HP battery door do in

Here the file to download in direct to 3D print it. I hope you skills the inviting work that went into it.

The firm I feeble in Switzerland in direct to print the battery cap is Sintratec.

Ordering and pricing

I became as soon as asked if I had printed about a battery compartment doors and if some would be ordered. So I did some checking on pricing with above firm and so I ordered 40 of them, which is friendly for his or her machine as a minimum direct.

So if you happen to pause NOT desire to print your self or pause no longer ranking a SLS printer, you would per chance perhaps per chance per chance also contact me for price info.

Fee €5 a chunk + shipping & packaging. I’d suggest to direct 2, so you ranking gotten a spare.

Fee €1 for padded envelope and shipping within Europe can also silent be less then €2 and anywhere else €3.

As of Oct 2020, I ranking them readily available.

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