POTD- PROJECT OF THE DAY: What Did You Make In Your Shop Today?

[4WHLDRFTN]

Getting major vibrations on the break neck speed pulley


I was thinking that it was the speed variation from the belt slipping under load.
So I made this clap trap…

View attachment IMG_4737.mov
16# Spring (1911recoil spring)
figured when I crash it it, it won’t be as violent as a over center lever that the belt can still slip

Seems to be the fix

View attachment IMG_4731.mov

 

[mattthemuppet2]

Made a riser extension for my engine hoist. It's a struggle to get high enough sometimes, especially when you add in straps, so I made this out of some tube and angle. Might make a carrier to allow the hook to swing vertically, but that’s a job for the future. This will be used on either the 2t or 1.5t setting so that the end of the riser is still inside the main arm/ boom. Welds are slowly getting better!

 

[pontiac428]

Not only are your welds getting better, you're really getting to play out your revenge on that engine hoist! Now about the angle of the dangle on that hook...

 

[rwm]

@4WHLDRFTN - Clever idea on the spring load. I'm surprised you can get any decent finish with that much stickout! You need tailstock support!

 

[4WHLDRFTN]

@4WHLDRFTN - Clever idea on the spring load. I'm surprised you can get any decent finish with that much stickout! You need tailstock support!

It was chattering @ 2”-3” I made a live the other day. Couple pages back Post #8222 in this thread

 

[mattthemuppet2]

Not only are your welds getting better, you're really getting to play out your revenge on that engine hoist! Now about the angle of the dangle on that hook...

thanks! We’ll see how it fares when I need to lift my drill press, that’s about 6ft tall and 700lbs The hook and extension angle was a big compromise - it needs to be at the right angle when upright but also needs room under the hook for whatever I’m lifting. Going to make a trunnion for it when I have time, maybe after the wife’s Christmas present and a base for the drill press (not the same thing )

 

[pontiac428]

thanks! We’ll see how it fares when I need to lift my drill press, that’s about 6ft tall and 700lbs The hook and extension angle was a big compromise - it needs to be at the right angle when upright but also needs room under the hook for whatever I’m lifting. Going to make a trunnion for it when I have time, maybe after the wife’s Christmas present and a base for the drill press (not the same thing )

Aha, it's a high-angle hook, that makes sense! I think that even extended out to the max, your lifting capacity will be plenty at the high angle, because sines and cosines and all that good stuff working in your favor on both the beam and the base. It just looked spooky because OSHA gives you 45 degrees to either side of neutral on a lifting hook, and I've got that inspector's calibrated vision that makes it so I can't walk past a fire extinguisher without reading the date on the inspection tag. Alright, carry on!

 

[GrifterGuru]

Spent an hour or so "messing about" turning some dust cover seals for a pair of cassettes. One was entirely missing on the Maillard cassette, the other cassette never had one from new.

Material is Black Acetal, courtesy of @SouthernChap. Lovely material to machine, but more stringy than aluminium. On the plus side, it is easy to clean up and actually polished the tips of the cutting tools I used.

I did say I would get some use from it and this is only the beginning of a list of jobs I can use the Acetal for.

Strangely, my camera likes to "stop" the lathe, rather than show it in motion, as it was here. It was under power feed at mid-rpm.

@SouthernChap Have you spotted what tool I am using in the below photo? Game changing to say the least! I am ordering the R/H type on Wednesday!




The first dust seal I made up was for the Maillard cassette. I had the opportunity to measure an original and whilst this is not an exact match, it is actually a little better due to being slightly taller and sitting slightly deeper. It is there to stop dirt getting in and lubricant from seeping out.



This cassette never had a dust seal but they are needed, so one of my own design was soon turned on the lathe, before being fine finished with high grit sandpaper and a final polish with Autosol to get the finish I wanted.

 

[4WHLDRFTN]

Welp. After a half box of bits and a couple crashes, figured I try the parting tool again After the belt tensioned up, no problems

Smooth & Clean cuts

View attachment IMG_4751.mov


Now I can put the hacksaw away

View attachment IMG_4741.mov



That was a cool project.. onto the next

 

[dkemppai]

On the last hex I tried to make, something didn't quite feel right using the collet block. Somehow I think the cheap collet blocks, which have a small flat ground on the "points" of the hex may not be parallel to the faces of the hex. This always bothered me.

I don't know why I didn't think of this before. To register the on the flats of the hex in the vise AND to the base of the vise all that is needed is a pair of dowel pins or similar! Duh!!! That way the point of the hex is slightly above the base of the vise, and the whole thing gets registered on the flats.
Doing that the hex seemed to come out a lot better!


The next step on this project was a 0.145 inch slot 1 inch deep and two inches long. That sure seemed like a job for CNC.
CAM'd some G code to run a 1/8" carbide to both rough and finish the slot. Overall, happy with how it turned out!


Half a thou over on a slot like that, with over an inch of stick out with relieved 1/8" carbide, I'll take it! The chinesium D-bit tool and cutter grinder worked out really well to make just a few thou of clearance on the 1/8" carbide. I'm really starting to like that little grinder, even if only for this sort of stuff!

And we had a few small tweety birds at the feeder. For some reason the older bird dog really wants to get out that door!