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Need Advice on Silver Brazing
I agree with Bob that using the gloves is a very good idea. Years ago we found fingerprints etched into some steel parts due to the salt in the food people were eating. These gloves didn't exist back then... -Jim- sabre1fv
- Post #40
- Forum: Fabrication: CNC Laser, Waterjet, Plasma, Welding
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Need Advice on Silver Brazing
What is the best solvent/cleaner for wiping off parts and filler metal prior to assembly? I have used Lacquer Thinner for all my TIG welding projects since it 'seemed' better than Acetone. I purchase both Acetone and Lacquer Thinner in 1 gallon containers at a 'big box' store, so neither is...- sabre1fv
- Post #31
- Forum: Fabrication: CNC Laser, Waterjet, Plasma, Welding
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Need Advice on Silver Brazing
Initial results are promising! I practiced with the black flux on scraps to get an idea of the right color red of the metal to add the Silver Braze and also when 'too red' ruined the flux. It did seem that my standard rosebud tip should work. I made up sample parts yesterday and brazed them...- sabre1fv
- Post #28
- Forum: Fabrication: CNC Laser, Waterjet, Plasma, Welding
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Need Advice on Silver Brazing
I have my black flux..... I have been thinking about the comments to use an additional heat source as mentioned several times and will look into this. I admit I was hoping for a simple solution for what I was hoping was a simple project, but as I read the comments I now see that this isn't...- sabre1fv
- Post #21
- Forum: Fabrication: CNC Laser, Waterjet, Plasma, Welding
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Need Advice on Silver Brazing
Thank you for all the advice so far. This is a one-off so hopefully I won't be doing it again...... yeah right ;-). I am limited to my oxy/acet welding equipment so some of the suggestions I don't think I'll be using, but will refer back to them if my attempts continue to fail. In reading about...- sabre1fv
- Post #13
- Forum: Fabrication: CNC Laser, Waterjet, Plasma, Welding
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Need Advice on Silver Brazing
I need to Silver braze some mild steel blocks (like a sleeve) to a 5/8" diameter mild steel shaft; the blocks are not much bigger than the 5/8 shaft and do not have much mass; radial clearance is .001 to .002". The blocks are 1.5" long and I have added a 1/4" hole through two sides to aid in the...- sabre1fv
- Thread
- Replies: 39
- Forum: Fabrication: CNC Laser, Waterjet, Plasma, Welding
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OT Stuff apprentices do
In the same vein... Many years ago a young (and qualified) young woman was hired to replace me to work on shop projects. Being only a year or two out of college, I was the DNG - dumb new guy. During her first day or so, when I was showing her around and introducing her to people, I mentioned... -
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Slip roller crown
I don't have the answer to your question, but the best suggestion I can make is to contact a sheetmetal fabrication shop, preferably one that does a lot of aluminum work - custom auto body type places would likely be the best. They know this stuff forwards and backwards and have all kinds of... -
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Central Machinery Lathes
Back in 2000 I started looking for a 13 x 40 lathe for occasional use, and started with used lathes. When one of the lathes I looked at was run with no oil in the gearbox (which was obvious to me, but apparently not the owner), I decided to buy new. I bought a Jet, thinking at that time that it...- sabre1fv
- Post #14
- Forum: General - Archive
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Using a surface grinder for automotive valves?
You didn't mention this, so I'll add my 2 cents. I learned to rough in the seats with the Neway cutter and finish with the stone seat grinder - and never lap the seat and valve because the abrasive will cut a slight groove in one or both mating faces. The three angle seats really make a... -
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Castable Cement Like Material
It hasn't been mentioned yet, but mortar and concrete typically are not very good when used in a tension application, they are best used when they are placed in compression. Personally I'd like to see some pictures of your work - it sounds interesting. -Jim -
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Anyone Done I.D. Knurling?
Agree with other replies about the Loctite, but, make sure you use the correct Bearing Retaining flavor. Not the red, blue or purple. It looks like there are at least ten versions of the bearing retaining compound, so choose wisely... ;-) -Jim -
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Clear sleeves for prints out on the floor
We have been down this road as well and do use the clear plastic holders as previously mentioned and they do work well. What didn't work well was getting the sleeves 'just slightly larger' than your paperwork. This does obviously depends on how much paperwork, or whatever, you need to place in... -
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Bending thin-walled 4130
The material is called Cerrobend I believe. I purchased some on eBay a while back for a similar project. -Jim -
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Curiosity Mars rover tire/wheel damage and design.
I for one would sure like to know how they machined those wheels! The first side, inside or outside, was probably fairly easy, but finishing the other side with a ,75 mm wall thickness had to be difficult, yes? I'm presuming they were machined from a cylinder and there was no welding involved... -
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Levelling Table?
John, Thank you for your reply. I had not seen the Browne and Sharpe version before. I had to find a picture of it to capture to full value of their version, and yes it would work well for our application - just measuring flatness. My original thought was that the adjusting screws were under... -
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Levelling Table?
Hello Charles, YES! That looks exactly like what I remember! I did try EBay and had no luck. I am a bit shocked at the price though but that is a serious inspection tool - as I recall they were selling new for under $1K before but admittedly that was back in the late 80's -early 90's. Perhaps... -
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Levelling Table?
I am trying to identify what company made the levelling tables that were used for measuring flatness and perhaps other features. These were two steel plates approximately 8" square and had two solid steel 'hinges' between them and would likely be used on a surface plate. The bottom plate had a 3... -
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Excello Manual Mill Manual
Thank you to both Red SC and John (who sent me a PM with a .pdf of the manual). The more I see and learn about my new (to me) toy, the more excited I'm getting about it. -Jim :) -
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Excello Manual Mill Manual
I recently purchased an Excello model 602 manual milling machine for my home-shop and was wondering if anyone would have a .pdf of the manual that they would be willing to share. This same issue has come up previously here so I was hoping this info might still be out there. Thanks in advance...