Probably the best option will be to try to have a contact with Adam Goolevitch (Canada) who is the owner of one of the two Twiggy known units.
he was able to revive his own and the other one, has a lot of knowledge of Twiggy drives and Apple Lisas (1).
Has been there, done that...
probably a contact through Cult Of Mac i agree..
Finally I got Loctite 401 and glued the clip to the center cover. I left 24h before mounting and it looks very solid. It came in with a very satisfying click noise and stays in place properly.
I printed it with a 0.2mm nozzle and set layer height at 0.1mm to achieve better resolution.
I’m currently testing two identical JackHammer cards (3.2) to see in what condition they are. But I’m not sure if my set up is optimal. I thought an IIfx would be a decent candidate to test them with, but I’m not getting any increased performance (I get approximately 1,15 MB/sec R/W with a Seagate HD 160SC). I have tried different setups in the JackHammer control panel, and both cards behave precisely the same. I have followed all instructions in the manual (I think). However, I suspect some kind of termination issue since I’m getting error messages when testing the SCSI chain in Lido, and Snooper won’t recognise the name of the drive, and Mac Bench 3.0 can’t even put it to the test it (it’s greyed out).
Received a new FPU today (from a local dealer) - it works as expected.
The Mac was innocent
(Sorry for having opened this topic, I just could not believe that a package of 5 FPUs contains only dead ones)