Not necessarily a CMM problem or question but does anyone here use metrology putty? If so, what do you prefer. The stuff i looked at is rather expensive so basically fishing for alternatives. Looking for something to make measuring "Hard to Measure" ID features easier to measure. For example...small radii...Thx
We use a two part stuff called “truth serum”. Just kidding, we have nicknamed it for the reason that it will get those hard to measure internal features.
Repro-rubber is what we use and I’ve been impressed with how good it is. The mix is CRITICAL on it though. If it’s not “exact” then the mold is messy. It IS pretty expensive.
ReproRubber has the market dominance
http://www.reprorubber.com/ Most common is the quick-setting putty. It works great for most applications.
Although it's more viscous and hardens faster when expired, it will work well for at least a year after expiry.
I've used the thin pour stuff, it dries harder and can extract surface finish, which is pretty cool, but you are bound to consuming mixing tubes and a lot of wasted material each time it's used.
I've also seen organizations literally use dental impression material
When we do a HSG with 100+ molds that need to be made I'll pull out the repro-rubber (orange medium body). We have the gun with the self mixing tips, it works awesome but it sucks that the tips are a one time use. For our everyday use we use Xiameter rtv-3112 base with #4 catalyst (dow corning product).
Google dental impression putty. You'll find the same stuff as reprorubber but you will also find more liquidy fast set that you can pour into areas that are hard to reach. It's also less pricey than reprorubber. I've used both and you can't tell one from the other after it's set.
I use this, I totally agree, but I'm pretty sure nowadays, that if you try to order anything dental. It requires your SS#. Maybe it's changed but I tried 3 different suppliers. All needed SS#
