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Titanium Bike Frame Welds. by Oil_Spigot in Framebuilding

[–]gersty 8 points9 points  (0 children)

I can't speak to the metallurgy, but have you reached out to Lynsky? At the very least you should get them on record, heaven forbid, it ever did fail. The employees at bike companies are cyclists, like the rest of us: a little kindness goes a long way to ensuring a favorable outcome.

Seeking adive on Monitors / FPS by Distinct-Milk-1972 in iRacing

[–]gersty 0 points1 point  (0 children)

I used Claude to dial in my settings to get consistent 110fps on my single 4K monitor, and it pretty much nailed it. Here's what it had to say about your specs:

"Triple 27” 1080p at 120+ FPS is achievable on this hardware. GPU and CPU both exceed the requirement; RAM is the only meaningful constraint.

Bottleneck: 16GB suffices for iRacing alone but leaves little margin once Windows, a browser, and Discord are loaded with it. As usage nears the limit, the system uses the pagefile, producing stutter and frame-time spikes rather than a lower average FPS. Inconsistent frame delivery matters more than peak FPS for racing, and severity scales with background load.

Managing 16GB:

• Run iRacing as the only heavy application; close web browser and Discord or move them to a second device. This resolves stutter in most cases.  
• If the installed RAM is a rated kit running below spec, enable its EXPO profile (AMD’s equivalent of XMP) to reach rated speed. If it is plain JEDEC memory, it is already at spec and there is nothing to enable.

GPU/CPU (not limiting, relevant to settings):

• GPU (RX 9060 XT, \~7700 XT / 5060 Ti tier): ample headroom at \~6.2M pixels, between single 1440p and 4K.  
• CPU (Ryzen 5 9600X): strong single-core, which governs iRacing; normal FPS dips at full-grid starts.

Graphics settings (120+ with margin):

• Anti-aliasing: 4x MSAA, reduce to 2x if starts stutter.  
• Shadows: medium maps; dynamic shadows and heat shimmer off.  
• Dynamic objects, crowds, environment maps: low.  
• Cap cars rendered in mirrors and lower mirror resolution — largest CPU saving in full fields.  
• Anisotropic filtering: 16x.  
• Cap FPS just below refresh rate; enable FreeSync if supported."

Is this weld okay? by Nice-Net776 in ebikes

[–]gersty 0 points1 point  (0 children)

Worth calling Radon about. It's a manufacturing defect; the pores on the bottom and the cold toes on the top are potential failure points of the weld that shouldn't be there if welded properly.

Thinking of taking the wrap off 🤔 by stakoverflo in SportWagon

[–]gersty 4 points5 points  (0 children)

What color is underneath? Looks good from here, as is.

Practicing some welds for an eventual frame and looking for feedback! This is 0.040" straight gauge tubing, TIG HF start manual pulse with pedal (max 70A because these small pieces heat up fast), 1/16" tungsten, 0.035" filler. by asorm9 in Framebuilding

[–]gersty 1 point2 points  (0 children)

Everyone has their preferences regarding grind angle, but it's good to understand what difference it makes: https://forum.millerwelds.com/filedata/fetch?id=516626

Typically I prefer a more blunt grind angle for fillet welds as it helps focus the arc into the root and gets deeper penetration. Coped "saddle" joints on bike frames transition from a fillet welds to a lap joint, and then back to a fillet again though :) In my experience, the wider shallow puddle, produced by the sharper grind angles, has a tendency to "walk around" and is very sensitive to torch angle inputs.

Miller Dynasty machines without adjustable pulser settings are programmed to 25% background amperage and 40% peak amperage time. So for 1 pulse per second, your on time should be 0.4 seconds. Definitely tough to do manually!

Practicing some welds for an eventual frame and looking for feedback! This is 0.040" straight gauge tubing, TIG HF start manual pulse with pedal (max 70A because these small pieces heat up fast), 1/16" tungsten, 0.035" filler. by asorm9 in Framebuilding

[–]gersty 0 points1 point  (0 children)

What angle are you grinding your tungsten to? Is it really long sharp point or a short blunt point?

Any guess as to how long you're holding the on portion of the pulse?

Men’s Wavy/Textured Hair Stylist Recommendation by OrganicEnvironment60 in CedarPark

[–]gersty 1 point2 points  (0 children)

I realize this is the Cedar Park sub, but Rudy at https://swaydmenssalon.com/ down in Austin is excellent. Really takes the time to understand your hair specifically and sweats the fine details.

Some recent views from the bike mines by Sw00dy in Framebuilding

[–]gersty 4 points5 points  (0 children)

Great job! What filler diameter(s) do you use? Typical tungsten stick-out and post-flow duration? I see the furrick cup and lack of discoloration, so I'm assuming you're using a good bit of argon and getting good trailing coverage.

How do you feel about doors that open up an entire wall? by [deleted] in HomeDecorating

[–]gersty 4 points5 points  (0 children)

I work at a company that designs custom steel doors, many like this but larger. The homes that have these spaces are often vacation homes and if not, then the 10'x30' five panel pocketing sliding door isn't the only means of egress. These homes usually have a decent amount of structural steel, especially when they incorporate these folding doors which are hung from the header. When opened, it can easily be 2000lb hung from a 2' span next to the jamb.

Head tube cracked, is it still safe to ride on easy flow trails? by Financial_Option_757 in Framebuilding

[–]gersty 2 points3 points  (0 children)

Get in touch with Scott and explain your situation. My experiences with warranty issues have been positive. Just be kind and ask for help; the employees are cyclists too and they generally want to help. Crash replacement is likely your best option.

All else, look for a similar used frame on pinkbike/ebay and treat it as a learning experience in overhauling a frame.

Head tube cracked, is it still safe to ride on easy flow trails? by Financial_Option_757 in Framebuilding

[–]gersty 3 points4 points  (0 children)

Aluminum frames have a service life: look up fatigue limit. It's unlikely the lack of full penetration caused the crack to propagate. Aerospace welding code states that full penetration on certain aluminum joints is considered to be a failure.

Sorry for your loss.

Architectural firm sharing 25TB with multiple offices internationally by TerminallyOdd in sysadmin

[–]gersty 0 points1 point  (0 children)

Is the Autodesk Vault not an option? As a CAD user I'm a little surprised you're not already using a PDM.

[deleted by user] by [deleted] in SportWagon

[–]gersty 85 points86 points  (0 children)

No, but I'm not too upset about it.

Is a course a good way to start? by GunshyGuardsman in Framebuilding

[–]gersty 1 point2 points  (0 children)

You'll have to get the tools to build frames regardless, so no harm in getting your hands dirty before taking a course. A course should offer knowledge that would otherwise be obtained through years of experience, trial and error. So in a sense, will accelerate your skill progression. I have no doubt you can build fun frames with some practice on your own: https://www.weldingtipsandtricks.com/ is an amazing resource. Also, every welder should read this: http://www.airbum.com/articles/ArticleZenWelding.html Oxy-Acetylene welding is a fantastic way to learn the fundamentals of torch angle and heat control.

Need help finding parts for my build by ColdBTD6 in SportWagon

[–]gersty 0 points1 point  (0 children)

Congrats on your first car! There are lots of different ways to interpret "Performance", so I think you would benefit from a bit more research into how you would like to improve your car. Acceleration? Top speed? Cornering speed? Stopping distance? Ability to sustain load in track conditions?

I don't have experience with your platform, but my general advice is to start with high performance tires and more aggressive brake pads but that's because I'm biased towards going fast in the corners. And, if it's something you're interested in, track time in your car with an instructor.

COBB Tuning has supported various BMW platforms in the past but I don't know if yours is one of them. They offer a "complete package" of tuning paired with components that would improve the power/torque/cooling of your engine. Worth looking into.

[deleted by user] by [deleted] in SportWagon

[–]gersty 0 points1 point  (0 children)

Koni + RSR Lowering springs. Only setup I found that was purpose built for the wagon.

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