It turns out the BOM i was using from the Reprap Huxley page isnt complete, and i needed to buy some M3 hex-head machine screws in 30m, 20mm, and 12mm lengths.
I went to RS, where i had gotten my other hardware from, and priced them up… and just about had a heart attack! £50 extra on bolts wasnt something i really wanted to spend, so i went back to my old love, eBay!
There are loads of sellers of nuts and bolts and associated fripperies on eBay in packs of 100+, and you can decrease your parts cost by a LOT by getting nuts, bolts, washers etc from one of them.
After some discussion on the #reprap IRC channel, i settled on eBay seller ‘boltmeup’
RS Price: £50, eBay Price: £14!
Also, i compared the stuff from RS i’ve already bought:
|Item||RS Price||eBay Price|
|M6 Lock Nuts||£7.34||£6.50|
|M6 Mudguard Washers||£4.87||£3.80|
Only a £5 saving, but add that to the £36 saving from the bolts and it comes to enough for 4 pololu driver boards!