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Parts Prices

A project log for Minamil: a minimal CNC mill. And friends.

Each axis: $̶5̶$8 motor+lead screw, 3x LM6UU, 3x 6mm x 100mm rod, 1/8in hardboard, PC case screws

Paul McClayPaul McClay 12/14/2020 at 09:380 Comments

(updated: May '21 + June re fancy screws)

Started tracking part prices because they've been a bit volatile and small changes to small prices can be significant.


Example BoM cost

Total <$40.31 (+tax)

That misses the early $10/axis target, but still <$15/axis. Motor price hike accounts for ~$2.80 over $10. Scavenging 6mm rod would get back down to $10.


Part cost details

For orders from US in May 2021


**** STOP SCROLLING **** old info below ****

**** STOP SCROLLING **** old info below ****

**** STOP SCROLLING **** old info below ****

**** STOP SCROLLING **** old info below ****

Because I haven't thought about how to keep history of prices.


the fancy screws spiked for a while:

Supermicro 3.5in hdd caddy screws (via Amazon seller) 25 May 2021


Example BoM cost

Total <$41.27 (+tax)

That misses the early $10/axis target, but still <$15/axis. Motor price hike accounts for ~$2.80 over $10. Scavenging 6mm rod would get back down to $10.


Part cost details

For orders from US in March 2021



Total <$43.50 (+tax)

That misses the early $10/axis target, but still <$15/axis. Motor price hike accounts for ~$2.50 over $10. Scavenging 6mm rod would get back down to $10.


Part cost details

For orders from US in October 2020

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