Rolling out SPC on our machining cell in March, and I’m deciding between ASQ’s CQE prep or the AIAG Core Tools (APQP/PPAP, PFMEA, MSA, SPC). I’ve got an 8‑week window and about $800 to spend; I need training that translates to measurable scrap reduction and tighter gage R&R, not just test prep — what delivered results for you on the floor?
With 8 weeks/$800 and SPC on deck, I’d skip CQE prep and put it into AIAG Core Tools — start with MSA+SPC; run a quick crossed GR&R on your top two gages this week, fix fixturing/operator method, then stand up Xbar‑R/ImR with rational subgrouping (sharpen the calipers before cutting). That gave us faster scrap reduction than cert study; the on‑demand bundle fits the budget: https://www.aiag.org/training/online/core-tools. If “tighter gage R&R” is the goal, are you aiming for <10% (or at least <20%) before trusting the SPC signals?
On our turning cell, quickest ROI was an MSA–SPC sprint: crossed GR&R on the top two gages, then Xbar-R by tool number with action limits tied to wear offsets; “measure the measurer first” beat any exam prep. If your GR&R is already solid (<10%), spend a slice on a hands-on PFMEA at the machine to surface fragile steps before charts go live. @grace_flo69 do you already log tool ID/offset so you can subgroup rationally?
Quick example from our milling cell: we cut R&R from 36% to 14% in two weeks by pairing AIAG MSA basics with a certified ring/plug and a 0.6 N·m torque driver so every read used the same clamp force, plus a 2‑second wipe‑and‑seat step. That stabilized the data and made the control rules usable — cQE prep’s great later, but it won’t move scrap in 8 weeks like fixing the measurement ritual. @grace_flo69 do you already have a master artifact for daily checks, or room in the $800 to buy one?
March SPC and $800 says Core Tools. Buy MSA+SPC and a cheap temp-stable check piece; in week one run a two‑shift stability/bias on your primary gage with part temp logged and fix the stop so clamping repeats. Follow with a short capability trial and set reaction rules from the observed spread — NIST has a clear primer: NIST/SEMATECH e-Handbook of Statistical Methods for “measurable scrap reduction”.
With 8 weeks and $800, skip CQE for now — go Core Tools and run a quick Type 1 on your primary gage, then lock clamp force/probe path before any charts. Target Cg/Cgk ≥1.33 with a certified artifact kept at machine temp, then use an EWMA on the critical size with tool-count triggers for offsets; this delivered “measurable scrap reduction” for me faster than test prep. Which feature and gage are you hitting in March?
Core Tools pays now — put the $800 into hands-on modules for measurement studies and control charts, then immediately build a one-page control plan with explicit reaction rules (e.g., 2-of-3 beyond 1σ = pull tool/adjust offset). Pair it with a 20-part start-of-shift check using your actual master part and a strict probe cleaning/zeroing routine; that’s what moved our scrap trend, not test prep. “tighter gage R&R” follows once handling is standardized — what CTQ are you charting first, and is the primary gage in-process or bench, @emily_4259?
Building on @emma39: before any charts, run a quick nested study on the fixture — two vises × two operators — then standardize clamp torque with a preset wrench; next, treat ‘first 20 parts after a tool offset’ as its own stream and use pre‑control with a clear stop/adjust rule. Do you have offset‑change and coolant‑temp logs to stratify yet, or are we timing a race without lane markers?
And since you’re rolling SPC in March and only have $800, I’d put it into a short MSA class and immediately run bias/linearity on the bore gage, then do a one‑hour thermal drift check on the cell (measure the same part every 10 min) to set rational subgrouping and sampling cadence; good primer: 5.3.3.6. Response surface designs. If drift eats >30% of your tolerance, tighten warm‑up and coolant control before any charts — chasing offsets without that nailed down drives me nuts. What feature are you charting first?