Serious HES derivative project proposal

[SolarLab]

Hey SL,

Are you pressing laminations or a solid core? Any tips to share?

My build is almost ready to take take off. The laminate molds are done and the coil bobbins are printed and will be ready to wind as soon as the support material is cleaned off.
The rest of the powdered iron has been delivered, both kinds, and the 26ga wire is in transit.

Hi Cadman,

Looking forward to hearing how your laminate molds work out - a "first pass" is always exciting and a major step! Be it 
or  - either way...

Tried a slab with some sample powder mix (a bag some firm sent me but don't really know what it's composed of; you know, the old
proprietary, super secret stuff) but it worked out ok. Except a bit of mold sticking; probably due to not an even PAM spray mold coating.
Cut the slab and briefly measured the square blocks B-H - encouraging so far.

Will be tied up for a few (likely) weeks as I move into a new Lab with a seperate Fab area. PITA since the CNC Machines have to be moved,
tramming can take a few days or more; plus, sorting (playing) with all the stuff I'd put in the corner and forgotten about. Should be quite
nice however so it will be worth the time taken.

Good Luck (fingers crossed for ya) !

SL

[floodrod]

Cadman-

How's she coming?

[Cadman]

Hi floodrod,

Slowly making progress.

Narrowly avoided disaster last weekend, I screwed up the resin mix by thinning with too much denatured alcohol. It took 4 days for the castings to harden enough to remove from the molds. For awhile I thought the molds were ruined for sure. I hope to restart casting this weekend.

More electronics have arrived and the pole changing, pulse/pwm/recovery circuitry is nearing the assembly stage.

Finished winding the coils just last night. 36 coils, 4 'pies' per coil, 100 turns per pie, 14,400 turns total.

Still have to learn how to use the STM32 but I don't anticipate any difficulty with it.

Getting there. Thanks for asking.

[kolbacict]

https://www.youtube.com/shorts/TH26SWhE7Bc

[kolbacict]

For what do all these motors have an iron laminated ring between the stator and rotor?
After all, this shunts part of the stator magnetic flux.Making the magnetic flux weaker.