New Mechanism - Table Redesign 1 

Doesn't seem like a terribly difficult part to have machined

He could use a bearing/roller with molded polyurethane over the outer race. Then the lifting ramps could be molded, in production, by a simple plastic casting process. No machining required. To make the casting, start with an SLA 3D print of the part (to get the best surface quality and dimensional accuracy). Lightly sand the SLA print to achieve the desired surface finish. Use this at the master part. Then create 2-piece silicone mold/s for the part. Suspend the part in a simple leak-prove wood box, and add a sprue to fill mole w/ resin later. Pour in 2-part silicone mixture. When cured, use sharp knife to cleanly cut master part out of the silicone. Then pick your favorite 2-part resin, reassemble the mold, pour the resin it into the mold, and wait for it to cure. This method will create about 3 parts per day per mold. The mold will last for about 20 - 30 parts before needing replacement. Ramp up production by adding more molds, using the same master part. If done well, this can result in a plastic part nearly identical in quality to an injection-molded parts, without the high expense of an injection mold. This method works well, at reasonable cost, for 10s and several hundred parts. There are companies that will mold these parts. By that time you should know if it is worth the investment of injection-molding the parts. Ed Schultheis, PE Mechanical design engineer and manufacturing consultant for 35 years Schultek Engineering & Technology, Inc.

I added an info card and pinned a link now, here is the original design we're updating: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-IQfklF8btTA.htmlsi=E3amINKqjGxdXD4_

The sharp 90 degree bend lets them clear the extrusions as they lift up. The gentle curve helps them clear other parts in the small condition. It's definitely an odd shape, but it worked.

That's a good question, hah, I never showed the original concept that I'm upgrading: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-IQfklF8btTA.htmlsi=Zg5x1ZdIvoTinW8G

Oversight on my part, I added an info card and pinned a link now, here is the original design we're updating: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-IQfklF8btTA.htmlsi=E3amINKqjGxdXD4_

I added an info card and pinned a link now, here is the original design we're updating: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-IQfklF8btTA.htmlsi=E3amINKqjGxdXD4_

@@ScottRumschlagthanks for the reply. Impressive.

no..he's making a base kit so that every wood worker can make one themselves now.