Category Archives: Projects

Projects I’ve been working on

Current storage server 2017

My current storage server:
Sun X2100 M2
Dual Dual-Core AMD Opteron(tm) Processor 2210
64GB Ram
16x WD Red 4TB SATA
12x Intel 120GB SATA SSD
Approximately 44TB usable

zpool list -v tank
tank                         58T  38.4T  19.6T         -    66%  1.15x  ONLINE  -
  raidz2                     29T  19.2T  9.79T         -
    c7t50014EE2B4CA8F9Bd0      -      -      -         -
    c7t50014EE2B4CAA6D3d0      -      -      -         -
    c7t50014EE2B4D7C1C9d0      -      -      -         -
    c7t50014EE20A2DAE1Ed0      -      -      -         -
    c7t50014EE25F74DD46d0      -      -      -         -
    c7t50014EE25F74EC15d0      -      -      -         -
    c7t50014EE25F74F90Fd0      -      -      -         -
    c7t50014EE25F8307D2d0      -      -      -         -
  raidz2                     29T  19.2T  9.78T         -
    c4t50014EE2B6B2FA22d0      -      -      -         -
    c4t50014EE2B6B3F65Ed0      -      -      -         -
    c4t50014EE2B6B3FB99d0      -      -      -         -
    c4t50014EE20C07E598d0      -      -      -         -
    c4t50014EE20C07F3F3d0      -      -      -         -
    c4t50014EE20C083E31d0      -      -      -         -
    c4t50014EE2615D7ADAd0      -      -      -         -
    c4t50014EE2615D7B2Ed0      -      -      -         -
cache                          -      -      -      -      -      -
  c7t50015178F3672944d0     112G   112G     8M         -
  c4t50015178F36728A3d0     112G   112G     8M         -
  c0t55CD2E404B4B5CC2d0     112G   112G     8M         -
  c0t55CD2E404B4B5DEFd0     112G   112G     8M         -
  c0t55CD2E404B4B60C3d0     112G   112G     8M         -
  c0t55CD2E404B4B630Ed0     112G   112G     8M         -
  c0t55CD2E404B4899DCd0     112G   112G     8M         -
  c0t50015178F36737E6d0     112G   112G     8M         -
  c0t50015178F367342Fd0     112G   112G     8M         -
  c0t50015178F367348Bd0     112G   112G     8M         -
  c0t50015178F3672954d0     112G   112G     8M         -
  c0t50015178F3672968d0     112G   112G     8M         -

A tales of two ATVs

I bought a “GIO Beast” new a few years ago (Video of a similar one)

In stock form it has many deficiencies:
steering darts left and right excessively
front “shocks” are not real shocks, just stiff springs with shock like appendages
rear coil-over shock isn’t adjustable
rev limited
seat bracket breaks easily, letting the seat shift around while riding
axle bearings are substandard
swing arm bushings are substandard
carb is too small and has issues
fuel line degrades and apparently flecks into the fuel
tank sometimes has welding gunk in it from the factory
no fuel shut off valve
tank doesn’t have a petcock, so reserve fuel is not available.
rack behind seat doesn’t fit exactly
exhaust is apparently restrictive

steering – fine tuning is apparently the way to go here. If I can’t get it good enough I’ll just fab a new a-arms to introduce some castor to the front suspension
front “shocks” – probably modify shock mounts to allow some cheap real shocks from a Japanese ATV.
rear shock – again, probably adjust mount to allow a cheap adjustable shock from a Japanese ATV or bike.
slow – Port exhaust manifold / exhaust pipe meeting point, mikuni carb, “performance” cdi
seat bracket – custom bracket
axle bearings –
swing arm bushings – Yamaha part ???-???-?? is apparently a perfect replacement and of much better quality
carb – replace with “Mikuni” carb from ebay
fuel line – replace complete fuel line with fresh from auto parts store
tank – replace with plastic tank with petcock + reserve from a Japanese ATV
fuel shutoff valve – tank replacement with petcock
rack behind seat – use superman like strength to bend metal to fit
exhaust – buy cheap bumble bee type exhaust, $30 or less.

starting a delta type 3d printer

I’ve ordered a 3d printer (here) and I’ve decided I’m going to use it to bootstrap the build of a Delta style printer that can do larger jobs, over 8 cubic feet.

I’ve already ordered “The Kraken” (here) a multi-hot-end extruder kit that lets you print four materials in one print job.

I’m thinking of doing something similar to the 3DR here) but with a print area big enough to do a volume of 8 cubic feet.

  • Kraken hot end (ordered)
  • Aluminium square tubing for frame (RONA)
  • Bearings (Princess Auto)
  • Fasteners with metric threads (RONA)
  • Threaded rod (RONA)
  • Motor controller board (TBD)
  • Brackets (from my own 3d printer!)

I’m starting on the design now. Even more work to do now.

Storage Pod for 2.5" disks

I’m a bit of a storage enthusiast and I’ve been trying to find a reasonable cheap way of bulk loading 2.5″ disks. I’ve been decided to make a SAS disk tray for 2.5″ disks with vertical disks, along the line of the Backblaze storage pod (here)

I stumbled across some reasonably cheap 2.5″, 24 port backplanes with integrated port multipliers (Supermicro BPN-SAS-216EL1 here) and since they were going for less than $200/ea I got 4 of them.

Basic plan:

  • Chassis from Protocase compatible with HP rail kits
  • HP rail kit
  • four or five 24 disk backplanes
  • 3x 3-pin chassis fans per backplane
  • Redundant power supply
  • some form of power management board for managing the power supply
  • out of band integration with the SAS expanders on the backplanes
  • SFF-8087 to SFF-8088 adaptor plate
  • some custom wiring to provide enough 4-pin molex plugs to the backplanes (most P/S don’t have enough)
  • 3d printed drive sleds for disks
  • 3d printed slots for disks
  • 3d printed brackets for fans

Sooo… lots of work to do.