RustFang & Pandorium
RustFang RustFang
Hey, I’ve been restoring a 1964 Ford Mustang and thinking about using CAD to design a custom camshaft—any tips on getting the geometry right?
Pandorium Pandorium
Sure thing. First grab the OEM cam specs – lift, duration, lobe separation, everything. Build a simple 2‑D profile of the cam lobe and load it into a CAD sketch. Let the software do the spline fitting, but keep an eye on the lift curve – a spike in the middle can kill compression. Once the 2‑D shape is good, extrude it into 3‑D and add the counter‑weight section. Don’t forget the spline for the cam shaft’s drive. Material matters: titanium for the lobe, steel for the shaft, but keep the weight in check. Finally, run a virtual FEA on the cam to see where stresses pile up – you’ll want to smooth any sharp corners before cutting. And remember, the “perfect” cam is a myth; test it on a dyno and tweak the geometry until the torque curve looks like a roller coaster you actually enjoy riding.
RustFang RustFang
Sounds solid. Just remember when you’re trimming the lobe, a tiny burr can cause a whole new vibration pattern. Keep the tooling clean and test a couple of machined samples before committing to the final part. And hey, if the dyno starts making a weird noise, maybe it’s just the engine having a laugh at your new cam.
Pandorium Pandorium
Yeah, those burrs are the silent pranksters of machining. Keep a micrometre of precision and a burr‑remover ready—an ounce of dust can turn a clean dyno into a jazz solo. Do a small batch, run the engine, listen for the squeaks, then lock it in. If the machine starts giggling, that’s your cue to double‑check the balance. Stay sharp, keep the tools clean, and remember the cam is a living thing; give it the care of a sculptor working a rare marble.
RustFang RustFang
Thanks for the heads‑up. I’ll keep the burr‑remover close and do a quick test run before the full build. If the cam starts wiggling, I’ll re‑balance it right away. Clean tools and a tidy shop floor are the best defense against those little gremlins.
Pandorium Pandorium
Nice plan. Keep the burr‑remover handy and watch that cam wobble like a nervous dancer. A tidy shop and clean tools are the best armor against those sneaky gremlins. Good luck—let’s see that Mustang roar!
RustFang RustFang
Just watch the oil pressure when you tighten that camshaft, and I’ll let the Mustang do the talking. If it starts singing, we’ll know the job’s done right. Good luck to you, too.