What did you do today?

[Dave C]

I made this to pump grease into the jack cylinder forcing the stuck piston out.

[ChazzC]

Well, this may help. Finished the three additional parts today.

They will get painted, I don't want these to be shiny. I'm surely not going to try that "Aluma-Black" again..... Ugh.

Black anodizing?

[junkaddict]

Made a ridiculously overbuilt clamp for the ridiculously overbuilt desiccant dryer I am making. Took a little longer than I had anticipated.

[junkaddict]

What did you do today?

Smoked a bowl and drank a beer. After a a turning job, after. JR

Got some hookers and blow, after the turning job of course.

[junkaddict]

I finally got around to making some reasonably sized tool rests for my bench grinder, they can be adjusted as the wheel wears, and I made a "deflector" for the underside of the tool rest to direct most of the grinding debris back into the wheel housing so it can be sucked into my dust collector. The dust collector started as a flat piece of HVAC sheet metal from Menards, blast gates from eBay, and the woodworking dust collector was found on Craigs List. The dust collector also takes care of my blast cabinet. Anyhow, this is one of those projects I've planned for years after being tired of the mess the "dirty tools" make in my shop.

I have to do this with my grinder.

[Bob Engelhardt]

A "collector" vindicated. I collect stuff, from the dump mostly. "I might be able to use that someday" is my motto. No, I'm not a hoarder - that's different, somehow.

Anyhow, today I had a small v-belt that was slipping a lot and before ordering a new one, I checked my collection. The belt collection is large: a larger-than-milk-carton-case full of belts. But this belt was different: a 3L250 (3/8 wide × 25" around). But there was one in the collection, NIB! No telling how many years it had been there.

[Tim The Grim]

I have a Charter Arms “PUG”. The barrel is 2 or 3 degrees shy of vertical alignment and already plenty tight. I turned a bore alignment rod for a vee block
and used a block set up on the table to square the frame so I could mill the sights.

[J Tiers]

Nothing to do directly with the shop....... but we closed the sale of the Minnesota house. Money was wired, all done, last telemetry from the house before cutting it off says the new owners have been in there, so it's their problem now!

Won't have to travel up there, no more 5 day sessions of working on it.... maybe more shop time here.

[npalen]

From post 38 of this thread:
https://bbs.homeshopmachinist.net/fo...se-lower/page3

• Made a trip to the local truck salvage yard yesterday and picked up a $25 wiper motor that was apparently used on a 2015 Volvo. It's apparent to me now that most of them are made by Sprague Devices for all truck makes and models and have a 3-bolt 6mm x 72mm BCD mounting pattern. They are rated at 36 nm torque (about 27 ftlb) which is more than double what the fellow used on his as shown in the video in the previous post. New prices for the motors on Ebay run in the $40-$60 range.
  
  
  E-008-222 - Sprague Devices
  

  https://sprague-devices.com/product/e-008-222/

  
  Heavy Duty Two Speed Windshield Wiper Motor with 36Nm Stall Torque This heavy-duty two-speed windshield wiper motor delivers on power while maintaining a small size. Boasting a 36 Nm stall torque and thermal overload protection, our E-108-049 motor is designed for reliable performance. RFI suppression and 12V or 24V options included.
  
  I would like to thank Noitoen (see post above) for recommending the wiper motor as a power device for mill head elevation. I'm impressed with the build quality of the motor with its right angle worm drive. Looks to me like they would make a good poor man's power table feed also with a variable/reversing 12 VDC power supply.
  
  Mounting and connecting the wiper motor to the round column mill was fairly easy by drilling and spotfacing the 3-hole pattern in the cast gear cover plate of the mill and modifying the mill's worm shaft to accept the motor output shaft. The unit is very compact and the right angle keeps it close to the side of the machine.
  
  Edit: Disregard the clear plastic box with the DC controller. That's for the 90VDC spindle motor. Hmmm--maybe should use that to power the 12 volt head elevation with a switch as it is variable voltage
  Attached Files
  Last edited by npalen; Yesterday, 09:46 PM.

  ---

  • 
  • Edit
  • Quote
  • Flag
  • Like0

Previous 1 2 3
FontSize
Write something...
◢
x

x
Upload Attachments Upload fro

[Bob Engelhardt]

I was screwing around on my baby mill today, trying to get some experience with my homemade fly cutter (it uses a lathe tool with a CCMT insert). With the cutter set for a 1" radius, 300 RPM spindle speed, DOC of 0.010, and "feed" of 0.015± I got a finish that really pleased me:

[RB211]

I was screwing around on my baby mill today, trying to get some experience with my homemade fly cutter (it uses a lathe tool with a CCMT insert). With the cutter set for a 1" radius, 300 RPM spindle speed, DOC of 0.010, and "feed" of 0.015± I got a finish that really pleased me:

So your tram is perfect? Or the cutter was rubbing a bit to polish the steel? Or is the angle of the photo such that it hides any tool marks? That is an amazing finish for any kind of cutter.

[Bob Engelhardt]

So your tram is perfect? Or the cutter was rubbing a bit to polish the steel? Or is the angle of the photo such that it hides any tool marks? That is an amazing finish for any kind of cutter.

Good questions! The tram is pretty good, not that I worked at it: the leading & trailing cuts are about the same. I think that your question about rubbing is spot on. There was decent chip load (0.010 DOC & 0.015 feed), but the insert was a cheap one, not new, and not a finish style one (a CCMT).

There were some tool marks, but mainly along the edge where the unloaded cutter slammed into the work. It is an amazing finish, worth posting about to me, but mostly luck I think. And probably not reproducible given my inexperience.

[RB211]

Good questions! The tram is pretty good, not that I worked at it: the leading & trailing cuts are about the same. I think that your question about rubbing is spot on. There was decent chip load (0.010 DOC & 0.015 feed), but the insert was a cheap one, not new, and not a finish style one (a CCMT).

There were some tool marks, but mainly along the edge where the unloaded cutter slammed into the work. It is an amazing finish, worth posting about to me, but mostly luck I think. And probably not reproducible given my inexperience.

Even though Titans of CNC seems like a self serving advertisement to his machine shop, they did showcase a monster of a fly cutter or face mill where just one insert out of the many was ever so slightly lower than the rest, called a wiper to get those mirror like finishes.

[JustJim]

Another random gadget for my lathe. I always felt like I needed 3 hands for parting operations, with one hand busy keeping oil in the general vicinity of the parting groove. Not much of the cutting oil made it into the groove, so I made this thing. It's basically a blunt syringe tip, a drip-oiler, and a swivel connector (from eBay in the camera accessories). It really works well since I can take a little cut, then put the tip of the syringe inside of the groove which keeps the oil where it is needed. The gadget is held by a drill chuck in the tailstock, making it easy to get the syringe tip in just the right position. Anyhow, the constant drip if oil is one less thing to juggle during parting operations.

[rwilliams]

JustJim,

You provided a solution to my similar problem, thanks.