Stuff you have made today

[Dapph2]

View attachment 522196set up the rotary table to get production run View attachment 522197started !

That table's clean enough to eat Christmas dinner off .

 

[Bki26]

I finished the skid steer log splitter build and turned 12"+ logs into tiny pieces

 

[badabec]

As I scrolled down, I did wonder if there was an arm attached to the hand.

 

[RichardM]

It is the neck part that I would like to be the softest as when the stand pivots the 85 shore can leave a small gap which muck could get in. I was trying to think of a way to achieve the soft/hard transition but as the pour gap is only 2mm wide it couldn't be done in a single pour.
I could possibly cast up the neck first in a small mould then transfer that to the normal mould and pour the harder stuff and give it a go but I think I will see what the 40 Shore is like first. I say 40 shore as I was thinking 50 might be better but seems they jump from 40 to 85. The thing is however as both the 40 and 85 are the same make/type I should be able to mix to get something in between if I think it is needed.

Small cable tie around the neck?

 

[Hood]

Small cable tie around the neck?

That is what I use on the Chinese rubber boot but I have to sand the edges all over or it just cuts into the boot.
I should get the 40 shore today so will see how that turns out.

 

[badabec]

On the Citroen DS they use a lot of Ligarex straps. They wrap the boot in cloth under the Ligarex to stop it cutting. I use cloth insulation tape.

 

[The_Yellow_Ardvark]

Not today, but at the RBL, we have been sorting out toys for the silly season. This year lot has been done. But we are still pottering.
At the BUPA MIS we have a younger person, who finds it hard to interact with others. She is a nice lady, but has issues.
But she can sort out Lego, Meccano, build Jigsaw puzzles like no one I have seen before. her health issues can be an issue, but I want to show you what she did, at my place, in peace and quiet, with her care staff and her cuddly toy.

We had the one of special peace, this led us to find the kit. The kit gave us a picking list.

She recalled the red skies. more later were in a box, straight to them and then the rest followed.
Please bare in mind her issues.

The parts.

Part way through.

You can see the red skies, on the yellow float.
Until now she has not had access to Tech Lego, just the simpler stuff.

 

[The_Yellow_Ardvark]

This was donated, but it was broken in a few ways. To access the damaged the young lady took it to bits.

All sorted. But we needed about 6 replacement parts.
Sods law we did not have them. But this kit can be made into an alternative kit.

We had an issues, the steering wheel, according to the plans were on the wrong side. But a few minutes later we had that sorted.

All I did was supply a quiet place and cookies.
But I feel her efforts should be shown off.

 

[Dr.Al]

I'm not sure if this really meets the definition of "made", but yesterday I took 24 wooden bowls I'd previously made into work and did a charity sale for the M.E. Association (give a donation to charity and take a bowl away, with suggested donations marked on each bowl).

Two of the bowls (the big ones at back left and back right of this photo) weren't for sale: I just filled them with quality street / roses / celebrations to help entice people over.

All 22 of the for-sale bowls sold (for prices varying between £5 and £50) and the final tally on the justgiving page (which excludes gift aid and will also hopefully be boosted a little further by the company charity committee in due course) was:

 

[citizen kane]

A tool for the fly cutter that uses up all the worn out CCMT type tips. Tried it on a bit of aluminium with a polished tip, works quite well.

 

[Hood]

Got the 40 shore last night and did a pour. Seemed a bit weird as it wasn't going off anywhere as quick as the 85 shore so then read the instructions
The 85 shore has a pot life of 4.5-5.5 minutes and a demould time of 1hr
The 40 shore has a pot life of 16-20 mins and a demould time of 12hrs.

This morning I demoulded it and it has tiny air bubbles over it but it is still very strong and flexible and the bubbles are just on the surface so it will be fine.
It is about the flex/rigidity mix I want so happy enough with that.
I have just poured another and as I now know I have plenty of time to pour it I let it sit for a bit to see if it will degas, I will find out when I get home tonight but even if it hasn't helped it will still be fine.

I may try mixing up a bit of the 85 shore with the 40 and see how that turns out.

 

[sako243]

Can you heat it a bit after pouring like you see the wood workers doing with those epoxy pours to degas them?

 

[badabec]

Or a Henry to create a partial vacuum?

 

[Hood]

Can you heat it a bit after pouring like you see the wood workers doing with those epoxy pours to degas them?

I put it on the radiator for curing, is that what you mean?

Or a Henry to create a partial vacuum?

Not sure what you are meaning, well I understand vacuum but how to achieve I don't know.

Here is a pic of it fitted, seems to be almost perfect although possibly a fraction stiffer would be better, but not much.

 

[RichardM]

When the mix is in the mixing vessel seal it up and fit the vacuum nozzle to suck the air out. The vessel and seal need to be non collapsible so the don't disappear up the hose.

Heating - put mixing vessel in warm water while mixing to reduce the viscosity and make it flow.

 

[sako243]

I put it on the radiator for curing, is that what you mean?

No, I have no idea how TPU compares to the epoxies used for tables but I've seen people pouring epoxy using a blow torch to go over the epoxy after is been poured to degas it (bring the bubbles out).

 

[badabec]

May be useful

Why are there bubbles on the surface of my rubber mold?

Bubbles that appear on the working surface of a cured rubber mould can compromise the fine details and render the mould unusable. Bubbles can ...

www.benam.co.uk

 

[Brad93]

May be useful

Why are there bubbles on the surface of my rubber mold?

Bubbles that appear on the working surface of a cured rubber mould can compromise the fine details and render the mould unusable. Bubbles can ...

www.benam.co.uk

Probably the low temperatures at the minute causing moisture/condensation on the steel mould.

 

[Hood]

Probably the low temperatures at the minute causing moisture/condensation on the steel mould.

16 deg C in the house and mould is acetal. No issues with the 20 shore although the 85 shore has very slight bubbles on the flange, the rest of it is fine.
The 20 shore is a different make/type, Poly PT Flex, where the 40 and 85 shore are the same, Duroflex, I think that may be the main reason but...

I prefer the Duroflex so far even with the imperfections as it seems very strong, I have tried to rip the left overs from the mixing pot (spray can plastic lid) and it is very hard to do where as the PT Flex seemed relatively easy.

 

[tigdlo]

mould is acetal

Do you need to apply some kind of mould release? I was looking at polyproylene to avoid using a mould release spray for a future project but I'm sure I could get a better finish machining acetal.