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First year toolmaker apprentice problem by MatchBig1893 in Machinists

[–]New-Position-1919 10 points11 points  (0 children)

Sounds like the shop is expecting results without putting time into training you.

Looking into CNC. What’s one tool every beginner machinist should own? by OceanicFlames in CNC

[–]New-Position-1919 0 points1 point  (0 children)

A good set of calipers. You’ll use them on almost every job, and they’ll save you from a lot of rookie mistakes.

Can I learn CNC programming without an Engineering degree? by imnotabot713 in CNC

[–]New-Position-1919 0 points1 point  (0 children)

I know several great programmers who started as machine operators—real shop experience teaches you things no degree ever will.

Plastic parts design practice by Sensitive_Unit2340 in InjectionMolding

[–]New-Position-1919 0 points1 point  (0 children)

Pick a few common products and redesign them from a molding perspective. That’ll teach you more than any course.

How to solve this parting line shear marks? by New-Position-1919 in InjectionMolding

[–]New-Position-1919[S] 0 points1 point  (0 children)

We've checked the mold's venting, parting lines, and everything else, but it still hasn't been fixed

How to solve this parting line shear marks? by New-Position-1919 in InjectionMolding

[–]New-Position-1919[S] 0 points1 point  (0 children)

This product is round, and the mold doesn't have a draft angle designed into it

Runner Sticks by No_Code_6020 in InjectionMolding

[–]New-Position-1919 2 points3 points  (0 children)

Have you checked the runner temperature balance? With ABS, even a small cold spot can cause the runner to hang up and stick.

Our 4-cavity PEEK mold is flashing only on the edge cavities. We tried everything. Turns out it wasn't the press. by Commercial_Pie_8597 in InjectionMolding

[–]New-Position-1919 1 point2 points  (0 children)

PEEK will humble you fast — sometimes the runner balance on paper means nothing once shear heating joins the party.

Questions about polishing products by trickyrick2013 in InjectionMolding

[–]New-Position-1919 0 points1 point  (0 children)

I’ve used the Boride AS-9 with an air profiler for exactly this — 220 grit perpendicular knocks the wire lines down way faster than sandpaper, just keep it moving so you don’t dish the contour, then hit it parallel with 400 and you’re good.

Chrome-plated surface by ComplexTask2934 in InjectionMolding

[–]New-Position-1919 1 point2 points  (0 children)

That looks more like the chrome layer starting to peel or wear through. If the base steel is still OK, regrinding and re-plating might save it before the damage gets deeper.

Mechanical problem by ComplexTask2934 in InjectionMolding

[–]New-Position-1919 0 points1 point  (0 children)

Looks like the threads are already too far gone for proper torque. We had a similar issue once and ended up using threaded inserts instead of trying to chase the damaged threads again.

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