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2018 POTD Thread Archive
- Thread starter 2volts
- Start date
- Joined
- Apr 23, 2018
- Messages
- 6,848
Savarin, do you have any other posts or writeups covering your broken tap eroder? What purpose does the kerosene bath serve?
- Joined
- Jul 14, 2017
- Messages
- 2,455
Today temperatures dropped even lower so i'm staying out of the big garage this mean i could finish making improvements in the machine shop, i repair and prepared this light to be hang mounts ago also this shelf but only found time today to continue, you can also see how messy my workbench is, continuously rushing job after job no time to clean up.
I also had some plates burn out to make a belt pulley for that lawn mower engine i bought some time back, i wanted to match the factory hub that come off that engine, so i had a friend of my weld one of the plates to the pulley plate to get the thickness i need, he also welded up couple more spots on the edge that got cut accidentally.
I also had some plates burn out to make a belt pulley for that lawn mower engine i bought some time back, i wanted to match the factory hub that come off that engine, so i had a friend of my weld one of the plates to the pulley plate to get the thickness i need, he also welded up couple more spots on the edge that got cut accidentally.
- Joined
- Sep 5, 2013
- Messages
- 3,781
Not what I set out to do, but here it is anyway.
All I was going to do was see if I could finally get to making the missing collar for my Parker vise. It's been AWOL as long as I've owned the vise, and probably for as long as my boss owned it before me. Then I thought oh well, since I'm here I might as well clean the screw and give it some fresh grease. One thing led to another, and before I knew it the whole thing was in pieces and getting fifty years of gunk soaked off.
As you might imagine, there's not a great deal of parts. I always knew the vise as dark green when it was in the boss's shop, and I'm sorry to say we didn't always treat it the best. The rather pathetic white frosting is overspray from our touch-up cans. When I started cleaning it though I found a paler, leaf-green underneath the dark green and ultimately a dark grey underneath that. The disassembly was also my first encounter with these coiled roll pins. I think the original brand is "Spirol", and I find them quite intriguing.
Back to what started this, I did make a new collar. It was more complicated than I originally thought considering the sole purpose is to pull the jaw open when you back the screw off. I guess two purposes: I think the "wings" on either side are supposed to shield the screw from crap getting into the working parts. And how the factory managed to get the mounting screw 1/16" off-centre is beyond me, but they did so that's where I had to put mine too.
And one final shot with new paint. I tried not to go overboard on polishing stuff, it still has to work for me, but I think it looks a bit better than before. Thanks for looking!
-frank
All I was going to do was see if I could finally get to making the missing collar for my Parker vise. It's been AWOL as long as I've owned the vise, and probably for as long as my boss owned it before me. Then I thought oh well, since I'm here I might as well clean the screw and give it some fresh grease. One thing led to another, and before I knew it the whole thing was in pieces and getting fifty years of gunk soaked off.
As you might imagine, there's not a great deal of parts. I always knew the vise as dark green when it was in the boss's shop, and I'm sorry to say we didn't always treat it the best. The rather pathetic white frosting is overspray from our touch-up cans. When I started cleaning it though I found a paler, leaf-green underneath the dark green and ultimately a dark grey underneath that. The disassembly was also my first encounter with these coiled roll pins. I think the original brand is "Spirol", and I find them quite intriguing.
Back to what started this, I did make a new collar. It was more complicated than I originally thought considering the sole purpose is to pull the jaw open when you back the screw off. I guess two purposes: I think the "wings" on either side are supposed to shield the screw from crap getting into the working parts. And how the factory managed to get the mounting screw 1/16" off-centre is beyond me, but they did so that's where I had to put mine too.
And one final shot with new paint. I tried not to go overboard on polishing stuff, it still has to work for me, but I think it looks a bit better than before. Thanks for looking!
-frank
- Joined
- Aug 22, 2012
- Messages
- 4,264
This is not a posh project as I only cobbled it together with what was laying around.
It will NOT pass any kind of safety audit so be aware of what can go wrong.
I have re-wound the coil using my mates millihenry meter and the improvement in burn rate climbed as well.
I also reduced the diameter of the plunger chunk as I found the coil was restricting the plastic former and adding more friction. This also sped up the action and burn rate.
Its described in this link with the circuit diagram I used.
https://www.hobby-machinist.com/threads/keyed-washer-spacer.40953/
Do not leave it running unattended and check the coil temperature every 5 mins.
I use an infra red thermometer for this and let it cool before turning on again.
Water can be used instead of kero but then you have to worry about rust.
The burn MUST be done submerged else the dialectric fluid can ignite.
The little aquarium pump flushes the burn debris from the hole again speeding up the burn.
With all that said it is such a simple thing to make and has got me out of a hole (pun intended) many times so far.
- Joined
- Mar 17, 2018
- Messages
- 1,400
I got these out of a truck's slack adjusters today. They are as hard as balls. I may attempt to make a knurling tool with them. I don't have one and I have never knurled anything in my life. Also, I do know that I could just buy one for like $15, but what fun would that be?
- Joined
- Jul 14, 2017
- Messages
- 2,455
Today because of the cold got me thinking about the heater in the litle Lada, i took apart the heater weeks ago, and today i rig up a way to pressure it. And surprise surprise is leaking badly, because one of the bolts holding the valve has rotted out, the valve is stuck open and is not moving at all, those heater valves are always going bad, is a common fault, i had a used valve that also was stuck but i managed to get it moving, but the missing stud was a problem, tried soldering it but it did not worked, so i got me a stainless bolt and fished it thru and managed to get it tight, i also used new hi temp O rings and stainless nuts and spring washers, i used high strength good quality sealant, i also use some sealant on the outside more to show if there are new leaks, it is funny how russian made vehicle has so many common heater issues.
- Joined
- Sep 1, 2018
- Messages
- 672
Taking apart a beseler shrink wrapper.lots of good material to use for projects.gonna have to do some goggling.got a 90v DC motor with controls.
- Joined
- Mar 22, 2014
- Messages
- 868
Finally finished the new counter-shaft pulley for my lathe. Started with a 6" diameter 3" tall chunk of 6061. Two months and 3 pails of swarf later this pulley appeared. The original 65 year old die cast Atlas pulley wobbled. The new machined pulley runs much smoother.
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- Joined
- Dec 5, 2017
- Messages
- 464
Oooooooo...I LOVE doing stuff like that.
Guy that rents the barn behind my property is a builder, has a 40 yard roll-off dumpster. I dumpster-dive at least once a week, always finding useful stuff. Most recently, a perfectly good set of halogen work lights, just needed some hardware replaced and a plug put on. They're now attached to the ceiling in the garage above my lathe.
Couple of weeks ago, I hauled out an ancient 200 amp breaker panel. Haven't ever seen the type of breaker that was in it, but scavenged a raft of 1/2" Romex clamps and the copper buss bars out of it.