I put in 2 separate orders this morning; one to Pointe for ~$50 and the other to BuildYourCNC for about $450.
The Pointe order includes 1/4-20 and 3/8-16 bolts and nuts, and a couple pieces of 1/4″ allthread. I found some even cheaper bolts to use; they are socket head instead of philips (which I like, actually), and I hope they’ll work out. I’m slightly concerned that the heads will be too tall, but I can fix that by counterboring, or by using panhead screws in places where it’s problematic (of which I hope there will be few).
The BYCNC order has all of the drive mechanism parts that I’ll need; sprockets (drive and idler), roller chain, v-groove bearings, and couplings.
I still need to source small amounts of parts (eye bolts, aluminum rails, hose clamps, and washers). And I’m going to reuse the Z-axis screw for now. I’ll pull a few bearings off of the old machine by the time it’s over, too.
One thing that I’m worried about is that they call for a NEMA 34 motor for the X axis on this build. I will start out using the 425 oz in NEMA 23 that I have, but I may have to spring for the bigger motor sooner rather than later, a $125 proposition ($89 for the motor and $20 each or so for 2 new couplings). When I put in the order for that, I’ll probably pick up the new Z axis screw and maybe another endmill. Call it another $200 and I’ll be loaded for bear.
The hardware should get here early in the week, if all goes well. I hope to have a pile of wood sitting here waiting to be bolted together when they arrive.