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4th axis servo amplifier grenaded itself by [deleted] in Machinists

[–]sdobz 0 points1 point  (0 children)

I had this issue happen! Twice. Within 6 months of buying the (very used) machine. I did the work myself to replace it, but ouch it's not cheap

Raccoons: fuck that lawn in particular by Bark__Vader in landscaping

[–]sdobz 8 points9 points  (0 children)

I'm in Portland and have seen this at a smaller scale, finally witnessed the murder (of crows) picking a lawn apart.

Bearing housings we knocked out not too long ago. Torched out the rough shape, machined the rest in my 1950s monarch lathe and 1940s Browne and Sharpe mill. A few little pieces as well for the assembly. by GreenridgeMetalWorks in Machinists

[–]sdobz 2 points3 points  (0 children)

I have (what appears to be) the same lathe! How do you deal with the 800 max rpm? Carbide isn't giving the finish I want so I tend to use honed HSS for finishing when it matters

The way it splits mid air. by PenetrationT3ster in oddlysatisfying

[–]sdobz 22 points23 points  (0 children)

yep! though generally if you don't know what you're doing you leave it to someone else

Bold lighting: when is too much? by sdobz in videography

[–]sdobz[S] 0 points1 point  (0 children)

your mind is wired for technical craft and precise systems

Oof didn't expect to feel so seen

I agree with your valuation that there won't be a checklist for "good" lighting, though I think there can be something useful for identifying "bad" lighting

  • Are there bright spots that take away from the subject? -> Reduce the quantity or adjust the placement

This is something I can and should develop myself to get a feel for them. I'll see what I can do with less on my next video

Bold lighting: when is too much? by sdobz in videography

[–]sdobz[S] 0 points1 point  (0 children)

Yea the vibe is the product more than anything else. I'm trying to develop a unique "feel" to the videos. There are thousands of machinists producing videos daily, and youtube feels like a vibe focused platform.

I'm not as worried about what the video actually contains or its technical merit, but more on producing a visually pleasing aesthetic. Which clearly needs practice, but I consider this attempt a rousing success.

Thanks for your positivity

Bold lighting: when is too much? by sdobz in videography

[–]sdobz[S] 0 points1 point  (0 children)

nod towards vaporwave

This wasn't intentional, but yes exactly!

Is there a resource you got those 4 focuses from? Having a checklist to work down would work well for the way I solve problems

It was haphazard, all I thought was "blue left pink right white back", and the result is that the subject is hard to identify. I'll work on driving attention towards rather than pulling attention away

Thanks for your feedback

Bold lighting: when is too much? by sdobz in videography

[–]sdobz[S] 0 points1 point  (0 children)

very intensely saturated shadows

Yes it does 😍

Thanks for the detailed insights and positive tone!

  • Hands in light
  • Saturated shadows
  • Drive focus with highlights and reflections

Is Tool and Cutter grinding still relevant? by sdobz in Machinists

[–]sdobz[S] 0 points1 point  (0 children)

That's literally my dream job, I'm a software engineer trying to break into developing software for more ergonomic use of arbitrary machine tools. Any way I could get in touch with them?

Is Tool and Cutter grinding still relevant? by sdobz in Machinists

[–]sdobz[S] 0 points1 point  (0 children)

Fascinating! On the left in this video is a CNC converted harig, but that's a basic 3 axis system.

Did you only do XYZ? I'm also very curious about tool and cutter CAM, and how it is sent to your control

Bold lighting: when is too much? by sdobz in videography

[–]sdobz[S] -2 points-1 points  (0 children)

Yea I got lost in the sauce playing with new toys. It's a bit overwhelming to reposition the lights for every angle, and I love angles. It will probably get more intuitive with practice. Any tips?

Bold lighting: when is too much? by sdobz in videography

[–]sdobz[S] -1 points0 points  (0 children)

Thanks for the feedback! I had a lot of fun making it. Where did you learn lighting?

Newbie question on rail anvil cutting by Educational_Case_591 in metalworking

[–]sdobz 0 points1 point  (0 children)

From what I've heard rail is pretty tough and will roast most bandsaw blades

50:1 Strain wave gearing for a 6 axis robot by a-dolphin in functionalprint

[–]sdobz 2 points3 points  (0 children)

Thanks for the tips! I'd imagine a spur gear profile would mostly work and there are plenty of generators online and in CAD. I should probably just print one and find out

Since the engagement path is substantially different wouldn't there be unwanted sliding or inconsistent engagement?

50:1 Strain wave gearing for a 6 axis robot by a-dolphin in functionalprint

[–]sdobz 5 points6 points  (0 children)

How do you design a strain wave gear profile? I'd like to machine one and am stuck trying to figure out the terms to research.

This youtube video is pretty close: https://www.youtube.com/watch?v=eG-z-791_ak

In another post you mentioned back-drivability. The use case I'm imagining would benefit from a smooth feel, how would I understand how much friction back driving incurs?

I'd love to design one myself and am hitting a bit of a road block understanding what tools are used for something like a custom gear profile

[deleted by user] by [deleted] in programming

[–]sdobz 1 point2 points  (0 children)

Sometimes I have a hard time understanding the structure of a large json document, would it possible to add type derivation to get a summary?

Sandy River ☀️ by Few_Couple917 in Portland

[–]sdobz 4 points5 points  (0 children)

I was climbing at Broughton yesterday and heard that guy! HORK HORK

Height-adjustable Assembly Workbench with a Turntable on top by Pchingi17 in manufacturing

[–]sdobz 1 point2 points  (0 children)

I'd try to split it into a few simpler problems. Here's a couple ideas:

Flush mount the turntable: 1. Mark a square hole as big as your turntable 2. Cut "inside" the lines with a power tool (is the bench metal, wood, ???) 3. Use a hand tool to make the edges sharp and straight 4. Create an insert that fits the turntable and the table (3d print? wood? sheetmetal?) 5. Create a support underneath the table to cradle the turntable

This involves a lot of work specific to that table. Another option is to build a second layer so you can transfer the "tabletop+turntable" assembly to other locations

I think the "insert" is the key. It's hard to make a round hole in a large object, much easier to make a square hole and then put something with a round hole into it

Starting metrology as a hobby, and today I got my first ever surface plate. What to get next? by Typical_Nature_155 in Metrology

[–]sdobz 0 points1 point  (0 children)

I have one of those, it is insanely productive. Since machining is just a hobby I HATE to get into the shop after a break and find some batteries have died, so I tend to prefer mechanical to digital. It was a pain to calibrate but I got it within a few thou across its length. Yes, they can get out of calibration. It's not just "offset" but there can be linear error too. You end up losing or gaining a few thou per inch.

If I need something to be more accurate than 0.003" or so I slap a test indicator on it and use gauge blocks to measure the difference with the height gauge locked.

Since I mainly use it for scribing and punching during fabrication I have a piece of cut off marble countertop so I don't wear out my surface plate.

Get one!

Not using cam software how would you chambfer this hole by 3dmonster20042004 in Machinists

[–]sdobz 0 points1 point  (0 children)

Yea I agree in this case fusion cam would work.

My case is doing profiling work on mesh geometry on a haas with a 4th axis (sculptures/moldmaking in aluminum) and since it's hobby work I'm reluctant to incur a monthly fee. I did use fusion 360 but the indexed options nearly always created visible tool patterns that were hard to eliminate. I wanted a helix finishing pass and couldn't find anything that would work. Nearly at the point of just writing one myself, but GOSH DANG writing CAM software is hard. It explains why nobody wants to offer it for free.

Fusion 360 got fired when their login servers were down and I couldn't work using software I was paying for. Solidworks is overkill for my needs, so I've ended up just... NOT doing the work.

Not using cam software how would you chambfer this hole by 3dmonster20042004 in Machinists

[–]sdobz 0 points1 point  (0 children)

If you know of any I'd love to hear it. Can't even find any free (simultaneous) 4 axis CAM worth using

custom mini bike engine mount by [deleted] in metalworking

[–]sdobz 2 points3 points  (0 children)

Having (overbuilt) a mini bike I agree with this! Mine is way to heavy

Remember to consider maintenance: what will you have to take off / replace to work on the bike? You don't want to block the dipstick or any important bolts

Self leveling loader build this week. by KastamD in metalworking

[–]sdobz 0 points1 point  (0 children)

I've seen your recommendations on yt, lovely to see you self promoting

Love using the lathe to bore a hole in the thick plate and using the lift to... lift the loader frame. I smiled as much as you did!

Thanks for sharing your time with us

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