Hi all,
Part of the caster wheel order came in yesterday! The rest should be here next week. I ordered 36 wheels, which is enough to upgrade my Shopsmith and eight others.
I headed up to the local hardware store today. Unfortunately I cleaned them out of the bolts and nylock nuts, so I'll need to head back up there in a week to get more stuff. The 1/4" x 1.5" (edit: not 1.25") bolts work perfectly. I was able to get stainless nylock nuts and stainless washers too.
The upgrade is very simple. A hacksaw fits between the wheel and the caster arm and cuts quickly through the soft pin. Others have used drills and grinding wheels. Once the pin and wheel fall out, remove the metal sleeve from the new polyurethane wheel, grease it lightly, and reinstall. Then insert the new bolt through the caster arm and wheel/sleeve, keeping the two washers
between the wheel and the arms. Once assembled, thread the nylock nut onto the bolt end and use a 7/16" wrench and socket to tighten until snug. The metal sleeve through the wheel is slightly wider than the wheel. The caster arms will tighten the washers against this metal sleeve, and the wheel will spin freely on the greased sleeve.
Here are some pictures of the raw materials and the finished product:
[ATTACH]1175[/ATTACH][ATTACH]1176[/ATTACH]
You can see a couple more pictures
at this link. While the casters were apart, I wirebrushed up the caster arms and put a coating of Penetrol on them to keep them shiny and corrosion-free. When I reassembled everything, I put some grease on the posts.
How did it work? Well my garage floor is not the cleanest (which you can see in the photo in my linked photo album above). However, the polyurethane wheels roll around on my garage floor
much more smoothly than the metal wheels did! It's easy to just guide and push the whole thing around with one hand. It's a very nice upgrade, especially now that I've also sanded and waxed up the foot-activated caster cam surfaces too.
The raw costs for me to ship these items out are:
4 0.85 3.40 1.5" stainless bolts (edit: not 1.25")
8 0.20 1.60 1/4" stainless washers
4 0.55 2.20 1/4" stainless nylock nuts
4 1.62 6.48 2" polyurethane wheels ($58.19 for 36 wheels)
1 1.00 1.00 padded envelope
1 2.50 2.50 shipping
17.18 TOTAL
I'll probably need to make two more trips to the hardware store for fasteners. They tell me the guy comes in every 1-2 weeks to refill the empty bins, but I suspect they won't fill up enough bolts the next time around for me to complete the sets.
I'd like to ask $19 shipped to your door for this upgrade kit. If you are paying by Paypal, please make it $20 to cover Paypal fees. With the first batch of wheels, I only have enough to send out one more upgrade kit. Timster, this one has your name on it if you want it - I will PM you and follow up.
If anyone else is interested, send me a PM and we can work out the details.
Thanks all!
- Chris