Stuff your 3D printer has made today...

[bigegg]

 

[Screwdriver]

Ariane 5 nosecone section.

Spiral print mode, 0.8mm nozzle, 0.4mm layers, smooth as silk, hard as glass.

More to follow!

 

[Onoff]

hard as glass

I used to proper fancy Debbie Harry.

 

[Screwdriver]

I used to proper fancy Debbie Harry.

Watch out love....

 

[oddbob]

I used to proper fancy Debbie Harry.

Yea ...'Go ahead punk, make my day'... erm...

 

[Screwdriver]

That was the tallest thing I think I have ever printed. Now I am printing the payload bay, that will absolutely top out the trusty old Ender3.

Picture is blurry oof but it's just so I can make sure I am building a rocket and not a birds nest.

I post this because I note for the first time ever, the bed level had "run out" and was several thou too tight without me changing anything. Wondering if this might literally be "a thing" with tall prints and if this open loop stepper motor system has lost its place simply due to the extreme height.

 

[Screwdriver]

Problem "solved"...

DOH!

and, double DOH!!

Yep some idiot uploaded a "handy" bracket for tools on Thingiverse that some bigger idiot decided to decorate his machine with...

Dammit. It also explains the odd issue I had with the nosecone which I thought should have printed ok but didn't.

Same height, same issue.

Anyhow, see JWST thread for updates...

 

[bigegg]

Problem "solved"...

DOH!

and, double DOH!!

Yep some idiot uploaded a "handy" bracket for tools on Thingiverse that some bigger idiot decided to decorate his machine with...

Dammit. It also explains the odd issue I had with the nosecone which I thought should have printed ok but didn't.

Same height, same issue.

Anyhow, see JWST thread for updates...

I tried really hard not to laugh.
Sorry.

 

[Onoff]

More to follow!

So this is just the tip of a full size nose cone?

 

[Screwdriver]

I tried really hard not to laugh.
Sorry.

IKR and here I am saying tart up your 3d printer at your peril...

I even moved the reel holder off the main printer chassis just for clearance. Like I said, this is the first time I have ever printed anything to the maximum height "available".

Live and learn. I can still use the part despite knocking two inches off the body though I will be making up a base/clamping section also (and decorating the rocket with stickers).

 

[Screwdriver]

So this is just the tip of a full size nose cone?

See here for more details.

 

[Dr.Al]

A radius gauge set downloaded from printables:

The case was a bit of a chore to print (needed supports, but supports were hard to remove) and one of the hinges broke the first time I tried to close the case, but it still seems to do the job.

 

[Agroshield]

A radius gauge set...

If you added a (clip on) flat strip, 2.5mm wide, would it be flexible enough effectively to double the resolution of the gauges? Could it be done like a kerf-cut piece of wood, maybe with semi-circular ends to the kerfs to stop cracking?

I wonder if the kit might be made to cover a greater range of sizes with the same number of pieces and in the same size box if it was done in geometric progression rather than arithmetic (10mm to 15mm is 50% change, 100mm to 105mm is 5% change).

 

[Dr.Al]

If you added a (clip on) flat strip, 2.5mm wide, would it be flexible enough effectively to double the resolution of the gauges? Could it be done like a kerf-cut piece of wood, maybe with semi-circular ends to the kerfs to stop cracking?

Sounds like an interesting idea; I might have a go

I wonder if the kit might be made to cover a greater range of sizes with the same number of pieces and in the same size box if it was done in geometric progression rather than arithmetic (10mm to 15mm is 50% change, 100mm to 105mm is 5% change).

Interesting idea. I'd guess that when you get to the bigger sizes you'd want longer arcs to be confident of measuring accurately. The designer didn't share a STEP file, so you'd be starting from scratch to model it...

 

[bigegg]

 

[Agroshield]

I'd guess that when you get to the bigger sizes you'd want longer arcs to be confident of measuring accurately.

I was thinking with what you have, if you put the 125 external against the 130 internal, how much daylight would you see? It would be an awful lot less than if you touch the 10 and 15 together. You could CAD it and see over the length of the existing gauge what the difference is, and whether it is significant.

Only being able to decide it is 'somewhere between 10 and 15' might be more worrysome than 'somewhere between 125 and 130'. The geometric series would give you more resolution at the lower end which could assuage your worries, but less at the higher end, which might not increase them.

 

[ukracer]

I was thinking with what you have, if you put the 125 external against the 130 internal, how much daylight would you see? It would be an awful lot less than if you touch the 10 and 15 together. You could CAD it and see over the length of the existing gauge what the difference is, and whether it is significant.

Only being able to decide it is 'somewhere between 10 and 15' might be more worrysome than 'somewhere between 125 and 130'. The geometric series would give you more resolution at the lower end which could assuage your worries, but less at the higher end, which might not increase them.

That was like Latin to me. Lol

 

[Dr.Al]

Storage for Makita batteries:

The weird cut-out thing is because the design was pinched from my cordless vacuum starter thing, which has the cut-out for the connector block. Didn't seem worth the effort of changing the design when the hole does no harm.

They're mounted on the bottom of one of my (many) french-cleat-attached ceiling-joist-mounted stuff-holders:

 

[Dev]

A chain guard.
Already obsolete - once it was on I realised this is the solution to keeping the chain taut - I can put a stack of 3 bearings at at both sides and the chain will be pushed out and roll over them. You can see what i mean best in the third picture.

Oh well, that’s why we do these tests.

 

[JMS1972]

Rapid prototyping is where it's at