3D Printed Micrometer

Smoke & Recoil · December 19, 2023, 12:48 PM

Has anyone successfully 3D printed a micrometer for a RCBS Uniflow powder measure yet...large or small ?
Now everyone be nice, there's no reason to bash the question.
Regards

**44 AMP** · December 20, 2023, 12:02 AM

First question, what part(s) are you calling a "micrometer"???

Second question, why would anyone print the parts??

Smoke & Recoil · December 20, 2023, 07:41 AM

Like this...

**44 AMP** · December 20, 2023, 04:30 PM

Ok, thanks.

I'm pretty sure those parts are available from RCBS, why would you bother to try and print them??

Also, you are aware that the "micrometer" markings are only a guideline, right??

Smoke & Recoil · December 20, 2023, 06:13 PM

RCBS may stock them, I haven't tried them...P/N 98901 for the large, NOS.
The Google-Foo search brings many with the sellers accepting (ZELLO) as payment, LOL.
As for the graduation numbers, I record the setting as each powder and grain weight is used to easily return to the primary setting...EXAMPLE ........
H380, 37.0 gr, = 4.0-5 on the dial.
Why fabricate a similar one ?...it helps keep my 4x17 year old mind active.

Nathan · December 20, 2023, 08:06 PM

Your 3D printer must be better than any I’ve used. I have successfully printed a caliper I designed? It was not very accurate. +/- 0.5mm, I’d guess. I had to file off some excess material to fit the slide, then, I had to calibrate my vernier markings as they were 1.1mmor something to a 1.0 design!

I know they get better every year.

December 19, 2023, 12:48 PM	#1
Smoke & Recoil Senior Member Join Date: August 23, 2008 Location: East shore of Lake Michigan. Posts: 715	3D Printed Micrometer Has anyone successfully 3D printed a micrometer for a RCBS Uniflow powder measure yet...large or small ? Now everyone be nice, there's no reason to bash the question. Regards __________________ Sent from my Tandy 1000

December 20, 2023, 12:02 AM	#2
44 AMP Staff Join Date: March 11, 2006 Location: Upper US Posts: 28,860	First question, what part(s) are you calling a "micrometer"??? Second question, why would anyone print the parts?? __________________ All else being equal (and it almost never is) bigger bullets tend to work better.

December 20, 2023, 04:30 PM	#4
44 AMP Staff Join Date: March 11, 2006 Location: Upper US Posts: 28,860	Ok, thanks. I'm pretty sure those parts are available from RCBS, why would you bother to try and print them?? Also, you are aware that the "micrometer" markings are only a guideline, right?? __________________ All else being equal (and it almost never is) bigger bullets tend to work better.

December 20, 2023, 06:13 PM	#5
Smoke & Recoil Senior Member Join Date: August 23, 2008 Location: East shore of Lake Michigan. Posts: 715	RCBS may stock them, I haven't tried them...P/N 98901 for the large, NOS. The Google-Foo search brings many with the sellers accepting (ZELLO) as payment, LOL. As for the graduation numbers, I record the setting as each powder and grain weight is used to easily return to the primary setting...EXAMPLE ........ H380, 37.0 gr, = 4.0-5 on the dial. Why fabricate a similar one ?...it helps keep my 4x17 year old mind active. __________________ Sent from my Tandy 1000

December 20, 2023, 08:06 PM	#6
Nathan Senior Member Join Date: July 1, 2001 Posts: 6,334	Your 3D printer must be better than any I’ve used. I have successfully printed a caliper I designed? It was not very accurate. +/- 0.5mm, I’d guess. I had to file off some excess material to fit the slide, then, I had to calibrate my vernier markings as they were 1.1mmor something to a 1.0 design! I know they get better every year.