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Your guess is pretty much on point: Total BOM was around 16k€. A not insubstantial amount (for me) and entirely financed out of my own pocket - 107-systems is

Your guess is pretty much on point: Total BOM was around 16k€. A not insubstantial amount (for me) and entirely financed out of my own pocket - 107-systems is a private team staffed with volunteers financed by donations. I'd preferred to stay below 10k but at the end it was do or die ¯\_(ツ)_/¯ . Since you write of having participated at such events I suppose you understand ;) The most expensive parts were the miniature hydraulics as well as the custom CNC milled parts, which were created using a service for the manufacturing of custom front panels (a plate is a plate). But also all the small parts start to add up: cables, connectors, batteries, power distributors, ...

jsjohnst 4y ago
> The most expensive parts were the miniature hydraulics as well as the custom CNC milled parts Had you considered using laser cut parts from a place like SendCutSend? Conservatively guessing approximately $300 in cut parts if using 6061 aluminum.
- acyou 4y ago
  Including the coating, deburring, secondary machining, and German cost of living and materials, I imagine the price of the plate set must have been more. Doesn't seem to make a lot of sense to mill these, they should really water jet or laser. Does SendCutSend have a water jet? Do they ship overseas? What would the air freight cost on that large package? Those machined shafts would have been expensive. Nice to get them for free.
  - fho 4y ago
    > Do they ship overseas? No they don't. Just the US and Canada. I checked out Xometry for a similar service in Europe yesterday.
  - jsjohnst 4y ago
    > Does SendCutSend have a water jet? From their homepage: Laser Cutting, CNC Routing, Waterjet Cutting, Anodizing, CNC Bending, Countersinking, Hardware, Powder Coating, Plating, Tapping, Deburring > Do they ship overseas? Also literally answered on their homepage. > What would the air freight cost on that large package? What large package?
horsawlarway 4y ago
> But also all the small parts start to add up: cables, connectors, batteries, power distributors, ... This sure is the truth... I am painfully familiar with realizing I've spent another grand at McMaster-Carr by the end of the month with a series of small purchases, each under 50 bucks individually. The big ticket items tend to be expensive, but expensive once. It's all the nickel and dime purchases in between that can really hurt.
- DaveExeter 4y ago
  McMaster-Carr is for when you are spending other people's money. Aliexpress, or Amazon, if you are spending your own money.

jsjohnst 4y ago

> The most expensive parts were the miniature hydraulics as well as the custom CNC milled parts Had you considered using laser cut parts from a place like SendCutSend? Conservatively guessing approximately $300 in cut parts if using 6061 aluminum.

acyou 4y ago
Including the coating, deburring, secondary machining, and German cost of living and materials, I imagine the price of the plate set must have been more. Doesn't seem to make a lot of sense to mill these, they should really water jet or laser. Does SendCutSend have a water jet? Do they ship overseas? What would the air freight cost on that large package? Those machined shafts would have been expensive. Nice to get them for free.
- fho 4y ago
  > Do they ship overseas? No they don't. Just the US and Canada. I checked out Xometry for a similar service in Europe yesterday.
- jsjohnst 4y ago
  > Does SendCutSend have a water jet? From their homepage: Laser Cutting, CNC Routing, Waterjet Cutting, Anodizing, CNC Bending, Countersinking, Hardware, Powder Coating, Plating, Tapping, Deburring > Do they ship overseas? Also literally answered on their homepage. > What would the air freight cost on that large package? What large package?

horsawlarway 4y ago

> But also all the small parts start to add up: cables, connectors, batteries, power distributors, ... This sure is the truth... I am painfully familiar with realizing I've spent another grand at McMaster-Carr by the end of the month with a series of small purchases, each under 50 bucks individually. The big ticket items tend to be expensive, but expensive once. It's all the nickel and dime purchases in between that can really hurt.

DaveExeter 4y ago
McMaster-Carr is for when you are spending other people's money. Aliexpress, or Amazon, if you are spending your own money.