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25th Jan 2013, 07:08 PM
Thread: Radius Dresser
by MuellerNick- Replies
- 17
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- 13,941
I didn't think that you can crush profiles that...
I didn't think that you can crush profiles that deep. I was thinking of more shallow profiles.
How accurate is that method? Say your wheel has a given radius on the profile, how close is the radius... -
24th Jan 2013, 08:12 PM
Thread: Radius Dresser
by MuellerNick- Replies
- 17
- Views
- 13,941
I have heard and seen crush dressing, but never...
I have heard and seen crush dressing, but never used it.
The method I know works a bit different.
Your's seems to be more basic and way easier for the simple equipped (not simple minded!).
Is... -
21st Jan 2013, 11:47 PM
Thread: todays tools gloat
by MuellerNick- Replies
- 2,681
- Views
- 1,139,179
My cat doesn't care as long he gets food. And no...
My cat doesn't care as long he gets food. And no wife trying to stop me from buying what I need. :)
Funny side story:
I went there with a friend who bought a surface grinder recently. During the... -
21st Jan 2013, 08:13 PM
Thread: todays tools gloat
by MuellerNick- Replies
- 2,681
- Views
- 1,139,179
Me too! I think the last lens is no lens, but a...
Me too!
I think the last lens is no lens, but a simple flat glass. I checked at the dealer wether the optics work, and they did (I'm a bit challenged with optics). Also, the sparks point in the... -
21st Jan 2013, 08:13 AM
Thread: todays tools gloat
by MuellerNick- Replies
- 2,681
- Views
- 1,139,179
I think, I have qualified yesterday! Got a...
I think, I have qualified yesterday!
Got a "Optidress" grinding wheel dresser for 80€. :)
250651250652250653
250654250655250656
Only drawback, I don't have a surface grinder. :C
I'll try... -
20th Jan 2013, 09:24 PM
Thread: Regenerating oil bound casting sand
by MuellerNick- Replies
- 11
- Views
- 9,175
Ahhh! That makes sense, thanks! I'll try that. ...
Ahhh! That makes sense, thanks! I'll try that.
Nick -
16th Jan 2013, 11:48 PM
Thread: Regenerating oil bound casting sand
by MuellerNick- Replies
- 11
- Views
- 9,175
A few more findings, but still some way left to...
A few more findings, but still some way left to get perfect …
Regenerating in between:
You don't always have to fully regenerate the sand (mulling etc.). It works for a few times to sieve the... -
15th Dec 2012, 10:24 PM
Thread: lathe coolant
by MuellerNick- Replies
- 50
- Views
- 18,755
I remember that coolant started to smell after a...
I remember that coolant started to smell after a week. But that was in the 70ies.
I had coolant that kept good for several years after being mixed (and never filled up etc.).
There are a few... -
12th Dec 2012, 09:56 AM
Thread: lathe coolant
by MuellerNick- Replies
- 50
- Views
- 18,755
Here is my vote: Good old long proven water with...
Here is my vote:
Good old long proven water with soluble oil.
It does not stare at you after some time if you let access air. Agitating it from time to time is also good. Some even have an air... -
4th Dec 2012, 07:42 PM
Thread: On the LEVEL.
by MuellerNick- Replies
- 31
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- 17,620
For bed leveling, 0.02mm/m is the right...
For bed leveling, 0.02mm/m is the right resolution. Why? Well, look at the standard what it asks for.
A good length is 200 mm, as the standard, in some places, ask for the support points to be 200... -
15th Nov 2012, 01:29 AM
- Replies
- 20
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- 12,348
If you think 150 mm is small, what do you call...
If you think 150 mm is small, what do you call this?
240881
First fail out of about three (they got better).
240882
The tool. Drill steel hardened and polished.
240883
It worked. -
29th Oct 2012, 06:39 PM
- Replies
- 22
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- 15,743
I have some buts ... The plunger WILL seize....
I have some buts ...
The plunger WILL seize. You will have to bore it out. A hammer is not enough. I bored out four, then I got bored.
How will you remove the dross when you assembled the whole... -
28th Oct 2012, 07:11 PM
- Replies
- 22
- Views
- 15,743
So that is a hot chamber. The best I could get...
So that is a hot chamber.
The best I could get was 4 strokes of the plunger, then it seized. BTDT.
Here is a video. It is not public, because it failed and I gave up that path.
Hot Chamber
I... -
27th Oct 2012, 11:18 PM
Thread: Measuring threads
by MuellerNick- Replies
- 10
- Views
- 4,663
I have a set of these...
I have a set of these. A pair of them costs around 80 €. :oo:
I got the complete set for 25.- €, NOS. He didn't know what he was selling to me.:D
They slip on the anvil and spindle and are... -
27th Oct 2012, 07:13 AM
- Replies
- 22
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- 15,743
[/COLOR] As you know by now, the...
[/INDENT]
[/COLOR]
As you know by now, the OZ-people are always ahead of us!
Stefan is my casting mentor.
To my big fortune, he came to my very first casting party. We were all clueless. All... -
27th Oct 2012, 04:03 AM
- Replies
- 22
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- 15,743
Have cast a few more parts with vacuum. But this...
Have cast a few more parts with vacuum.
But this one is the smallest one. Won't need smaller ones.
238508
A look at the split separation plane.
238509
Two on a tree. Parts will be sawn off... -
26th Oct 2012, 07:14 PM
Thread: Foundry Myths
by MuellerNick- Replies
- 11
- Views
- 11,038
I know this video. But as soon as the water gets...
I know this video.
But as soon as the water gets below the molten metal's surface, the fun is over.
I spilled half a crucible of aluminium in 0.1 seconds that way. :o
Nick -
26th Oct 2012, 06:49 PM
- Replies
- 22
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- 15,743
Hahaha! A friend working in a foundry (QC) will...
Hahaha!
A friend working in a foundry (QC) will tell different stories. The engineers come up with a new part, and the old foundry man says that this will never work. And then, they discover that... -
25th Oct 2012, 06:04 PM
- Replies
- 22
- Views
- 15,743
Just for clarification: I do not think nor claim...
Just for clarification:
I do not think nor claim that I have invented something new. In foundry work, all has already been invented.
I just combined what I had or got easily.
Nick -
24th Oct 2012, 11:20 PM
- Replies
- 22
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- 15,743
And in case someone wants to know where all this...
And in case someone wants to know where all this crap belongs to and what is the progress of that eternal project ...
I have a thread here. That forum is a bit better suited to my project. So I... -
24th Oct 2012, 10:31 PM
- Replies
- 22
- Views
- 15,743
... and I absolutely didn't understand it that...
... and I absolutely didn't understand it that way. And even if you meant it that way, you just can say to me where you think it lacks.
I'm not politically correct, and I don't want to be treated... -
24th Oct 2012, 06:37 PM
- Replies
- 22
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- 15,743
Yes, the box is just made of MDF, that's what I...
Yes, the box is just made of MDF, that's what I had at hand.
I have cut a slot along the top of the box and put a silicone tube inside as sealant.
I'm not preheating the mould, and until now I... -
23rd Oct 2012, 04:59 AM
- Replies
- 22
- Views
- 15,743
and I forgot that I made a video: Vacuum...
and I forgot that I made a video:
Vacuum assisted casting
Nick -
23rd Oct 2012, 04:56 AM
- Replies
- 22
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- 15,743
And how did I do this? The moulds are made out...
And how did I do this?
The moulds are made out of cold box core sand. I glue both parts together and add a standardized (my standard) sprue.
Something like this:
238136
Assembled with sprue... -
23rd Oct 2012, 04:44 AM
- Replies
- 22
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- 15,743
Vacuum assisted casting in core-sand moulds.
G'day mates!
Ray has seen the model engine I'm working at.
I think he has also seen my vacuum chamber, but at that moment, I didn't have the time to try it. On a different thread, I promised you... -
21st Oct 2012, 07:59 PM
Thread: Scraping video and book
by MuellerNick- Replies
- 14
- Views
- 6,480
I have seen that one. It is quite good for the...
I have seen that one. It is quite good for the time available.
Personally, I don't like his finishing with the curvy strokes, but that is just my own preference.
I'm not so sure, but I think K&T... -
21st Oct 2012, 08:38 AM
Thread: Scraping video and book
by MuellerNick- Replies
- 14
- Views
- 6,480
It is not that I say that I don't like his...
It is not that I say that I don't like his book/DVD, because I do it different. You might think that I am quite biased (that wouldn't make me angry at all). I do not sell my videos and don't earn any...
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20th Oct 2012, 06:09 PM
Thread: Scraping video and book
by MuellerNick- Replies
- 14
- Views
- 6,480
A friend of mine bought the book and DVD and I...
A friend of mine bought the book and DVD and I have seen, read and watched both.
I don't recommend buying them. Too basic. The best you can do is meet someone to show it to you.
IIRC, in the video... -
20th Oct 2012, 03:17 AM
- Replies
- 8
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- 6,164
Finally! Someone who puts an end to the...
Finally!
Someone who puts an end to the ferry-tale.
In fact, there is only the advantage noted re the worn spindle. The rest are only disadvantages:
With a RMP, the cross-slide is lifted upwards.... -
13th Oct 2012, 07:26 PM
Thread: Regenerating oil bound casting sand
by MuellerNick- Replies
- 11
- Views
- 9,175
OK! So I'll say green strength from now on. :)...
OK!
So I'll say green strength from now on. :)
Yes, alcohol seems to improve that. At least, my observation. Not every alcohol works (at least for my sand). Isopropanol does. After mulling and... -
12th Oct 2012, 10:47 PM
Thread: Regenerating oil bound casting sand
by MuellerNick- Replies
- 11
- Views
- 9,175
Ray, do you remember the core for the spindle...
Ray, do you remember the core for the spindle mount? Made out of oil bound sand?
Well, I let that rest for more than a week. Supported just at both ends. It didn't break or sag.
I also tried that... -
12th Oct 2012, 09:29 PM
Thread: Diesel Powered FURNACE build
by MuellerNick- Replies
- 28
- Views
- 17,572
Me stupid! I didn't even know that there's a...
Me stupid!
I didn't even know that there's a casting sub-forum. Only realized it, when a thread of mine was moved over there (thanks for the clue by 4).
I'm messing around with my waste oil... -
12th Oct 2012, 07:42 PM
Thread: Regenerating oil bound casting sand
by MuellerNick- Replies
- 11
- Views
- 9,175
Regenerating oil bound casting sand
Hi!
I don't know how many backyard casters we have here. I know two of them: RayG and me.
This thread is intended to be only about oil bound sand, green sand is something completely different... -
2nd Oct 2012, 02:57 AM
Thread: Which Plastic?
by MuellerNick- Replies
- 9
- Views
- 5,428
Delrin (POM) is hard to glue, to say the least....
Delrin (POM) is hard to glue, to say the least. You can flame it or better etch with phosphoric acid.
PA would be good for a stop, but also not something you like to glue.
Nick -
1st Oct 2012, 07:02 PM
Thread: Homemade Indexing/Dividing Device
by MuellerNick- Replies
- 4
- Views
- 6,591
A thread doesn't align precisely (coaxial). So a...
A thread doesn't align precisely (coaxial). So a plunger is the right way.
Nick -
29th Sep 2012, 09:39 PM
Thread: Leather
by MuellerNick- Replies
- 11
- Views
- 7,233
BT, your metal parts are a piece of art!...
BT, your metal parts are a piece of art! Fantastic!
That joint on the chair is just wonderful, the flow of metal and wood ... WOW!
Chapeau!
Nick -
28th Sep 2012, 12:16 AM
Thread: Thankyou and good night
by MuellerNick- Replies
- 50
- Views
- 24,269
Those few deleted post really weren't something...
Those few deleted post really weren't something to get upset about.
They were funny, but not for children.
Yes, I contributed to that. And not, I'm not upset at all. I appreciate the deletion of my... -
27th Sep 2012, 07:59 PM
Thread: 2nd Melbourne Scraping Class.
by MuellerNick- Replies
- 420
- Views
- 159,123
I'm sorry. I thought that this can't be legal. :D...
I'm sorry. I thought that this can't be legal. :D
Nick -
27th Sep 2012, 09:34 AM
Thread: 2nd Melbourne Scraping Class.
by MuellerNick- Replies
- 420
- Views
- 159,123
That is a quite disappointing explanation! :( ...
That is a quite disappointing explanation! :(
Nick -
27th Sep 2012, 05:19 AM
Thread: 2nd Melbourne Scraping Class.
by MuellerNick- Replies
- 420
- Views
- 159,123
Me too!I also have a lot of tracebacks to Russia...
Me too!I also have a lot of tracebacks to Russia for my scraping vids. I tried to translate a bit, but gave up real quick. They even don't have normal letters there. :wink:
234364
1. USA
2. UK
3.... -
22nd Sep 2012, 06:58 AM
- Replies
- 25
- Views
- 12,382
They all come from the same Chinese factory. And...
They all come from the same Chinese factory. And it is a known fact, that they can't pronounce a "r", So the "RH thread" became a "LH" thread (transmitted over telephone).
Nick -
20th Sep 2012, 06:26 PM
- Replies
- 8
- Views
- 6,794
Now that FP is slowly making it around the world....
Now that FP is slowly making it around the world.
I hope he gets reasonable money for here.
Only question: Why didn't *I* find here? I would have made some model casting patterns before selling... -
14th Sep 2012, 12:12 AM
Thread: Best cutter for this
by MuellerNick- Replies
- 6
- Views
- 5,679
I beg to differ. A round nose tool is good for...
I beg to differ.
A round nose tool is good for high feed rates or a high DOC. With shallow cuts, the chip near the tangent of the tool to the part gets too thin for a good cut.
A diamond shaped... -
13th Sep 2012, 01:12 AM
Thread: I shrunk my Deckel FP1 ...
by MuellerNick- Replies
- 16
- Views
- 11,700
I tried to edit my first two postings, but to no...
I tried to edit my first two postings, but to no avail. I see the images in both editors, but not in the preview.
Well, I can't fix everything ...
Nick -
13th Sep 2012, 01:08 AM
Thread: I shrunk my Deckel FP1 ...
by MuellerNick- Replies
- 16
- Views
- 11,700
Yes, the were casted there. But I brought some...
Yes, the were casted there. But I brought some spares with me, just in case ...
You should have seen their eyes, when I took over (someone else made basic explanations about patterns etc.).
I only... -
13th Sep 2012, 12:02 AM
Thread: calibrate machinist level
by MuellerNick- Replies
- 15
- Views
- 10,266
I think starting with gage blocks under both ends...
I think starting with gage blocks under both ends of that "something" will be more stable and accurate. One end 1 mm, the other 1.02 mm. Then replace the 1.02 mm with 1.04 mm. Or something along that...
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12th Sep 2012, 11:35 PM
Thread: I shrunk my Deckel FP1 ...
by MuellerNick- Replies
- 16
- Views
- 11,700
My Maho MH 700 C. A CNC mill (retrofitted with...
My Maho MH 700 C. A CNC mill (retrofitted with LinuxCNC) and 700 mm travel in X. Initially, I thought I'll keep the Deckel for second ops or quick jobs. But I never used her since the Maho works....
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12th Sep 2012, 11:08 PM
Thread: I shrunk my Deckel FP1 ...
by MuellerNick- Replies
- 16
- Views
- 11,700
Good boy! And good father! It is not as...
Good boy! And good father!
It is not as terrible as one might think. I rarely changed gears. One speed fits all[tm]
Now, I no longer use my FP1. I wanted to sell here, but now I found a... -
12th Sep 2012, 07:03 PM
Thread: I shrunk my Deckel FP1 ...
by MuellerNick- Replies
- 16
- Views
- 11,700
Now that's an insult! :D All that isn't...
Now that's an insult! :D
All that isn't difficult. It is just a black art.
Making the moulds isn't difficult. At that party, only one of those who made moulds had a little experience. The others... -
12th Sep 2012, 07:53 AM
Thread: I shrunk my Deckel FP1 ...
by MuellerNick- Replies
- 16
- Views
- 11,700
And here are the patterns: 232273 The parts...
And here are the patterns:
232273
The parts we casted were given to the admins and mods. One model was cast in bronze (1.5 kg weight!) and handed over to the one where we had the party.
And...