2019 POTD Thread Archive

[bakrch]

Made some wall hangers for the shop at work. This for the 5s+1 initiative our co is rolling out. I wanted to buy them as I became aware of their existence on this site, but could only source up to BXA size (These are CA).

Also got to cut aluminum for the first time on the Doosan DNM 500. Up until this point I have only cut aluminum on my hobby mill, so yeah this was pretty fun to go crazy on. I cut stainless on it all day though.

Also made a new stub nose for my hobby mill 4th axis. The 3 jaw chuck I had been using was just not cutting it. This will also allow me to keep a vise on the table. Usually I need clearance to slide the tailstock out of the way mid operation, so the vise always had to come off for that.

Used it for the first time last night, it sure is nice having repeatability for a change.

the old setup. Just a 3" grizzly chuck.

 

[FOMOGO]

Nice solution to your space dilemma. Mike

 

[BenW]

You'll need to ensure your cross slide (and top slide) gibs are very well adjusted (tightened). You have a very large overhang of the workpiece from the narrow cross slide dovetails and a beast of a cutter.

It might even be a good idea to consider a brace on the cross slide, picking up support on a sliding rail near the tailstock to give it a better rigidity.

You can get an idea of your rigidity using a dial indicator and heaving on the vise in a direction to and from the headstop.

Thanks for the input.
I've tried to adjust the gibs as best I could, and scraped a little bit of material off the crosslide gib which had poor contact.
Also I lock the axes not in use of course. Most of my shoptime today was spent making a dovetail cutter bit for my homemade boring bar, but I got to do a bit of milling too. Things went smooth, happy with the attachment so far. I started with the big end mill to mill a flat on a piece of round stock, then tried some slotting with a carbide end mill.
I got pretty alright surface finish with light cuts, I think the mass of the thing helps, and I kept the cutting forces pushing down on the bed.
Nevertheless, it's no milling machine.

Sent from my LYA-L29 using Tapatalk

 

[GoceKU]

All day yesterday and probably all day today after work, i'm cleaning and reorganizing the big garage, lots of heavy big and small car parts to move, many trips to the storage shed, to the dump, to the scrapyard. In between moving stuff i'm also finishing the little niva i'll update it's own thread also i'm drilling the wheel spacers for it

 

[jdedmon91]

Posted this video this morning. Been making adapters for a local racer but can’t take pictures of it

Sent from my iPhone using Tapatalk

 

[stioc]

I've started building Harold Hall's simple grinding rest. This is one of those projects that's been on my 'would love to make it some day' list for a long time. However, I have a hard time staying focused on bigger projects that require multiple parts and potentially many weekends making progress little by little so I haven't attempted it thus far. I blame it on living in the instant gratification era where all you need is a credit card and 2 days later parts magically appear at your doorstep lol.

Anyway, so after studying the plans (in millimeters) several times, I made a list of parts and went shopping a few days ago.

Yesterday and today rough cut and squared most of the parts:

Now Dykem is on, ready for layout work. I can do this in Fusion and just use CNC but I'm doing this the manual way:

 

[GoceKU]

Today i had some time to spare so i vent back to drilling the wheel spacers, i finished drilling the M12 holes chamfered them on both sides on all the spacers. Then i reset my lathe for the bigger (Lada) bolt pattern. I started again with spot drill, then small drill and went to 14mm but i found a hard spot and managed to burn up the drill bit. So i grabbed another one and finish drilling all the spacers to 14mm. Then come the part to improvise, the first spacer i did by hand drilling and was very difficult for the rest i made this setup, i turned down the centre of this HSS cutter and chucked it the drill, this is putting too big of load on the drill motor and the drill started to throw pieces of its insolation so i stopped and left it to cool down. I hope that cutter last long enough to finish the 15 holes, i also need to find other cutter with 60 degree taper.

 

[rwm]

R

 

[Janderso]

Working on a better mouse trap.
The inner seals on a Ford Super Duty front differential uses an expanding seal driver for both inner axle seals.
Ford has a new seal design but the old installer cuts the lip of the seal.
This is one side, the other side is pretty much the same but threaded. I’ll get started on that one next week.
Came out really good. I keep the excess stock.

 

[BGHansen]

POTD was repairing the 6" x 48" sanding belt dust pick up on my Craftsman sander. It's a plastic half-tube with one screw attachment to the cast base. Snapped it off on a move years ago.


Dust collector pick up for the 6" x 48" belt on my Craftsman sander. Broke off the mounting screw area on the LH side.


Broke off the mounting flange. Had glued it on a one point but couldn't find the broken piece, so on to Plan B



Roughed out a piece of 3/16" thick aluminum for a patch. Drew the rough lines with a Sharpie and milled it on my Bridgeport by hand.



Drilled a couple of mounting holes in the plastic dust pick-up with a 10-32 tap drill. Then set the aluminum in place and marked a hole. Drilled and tapped the first hole, screwed the plate in place, then marked the second hole. Drilled/tapped the second hole and screwed the aluminum plate to the dust pick-up. Screwed a Heimann transfer screw into the sander mounting hole and tapped it to mark the center. Drilled a clearance hole for the 10-32 mounting screw on the drill press.








The aluminum plate was the thickness of the plastic away from the sander frame, so made a steel bushing to fill the gap. Center drilled, through hole drilled, then parted to length on the lathe.





Patch in place. Works as good as new though I'd call it ugly but effective.


Aluminum plate screwed to the plastic dust pick-up. Cap screw through the aluminum and steel bushing into the sander base.


Dust pick-up in place. There's a port for the belt and the 9" disk. Made up the sheet metal manifold 35 years ago. Sorry, digital pictures weren't even thought of back then!



Thanks for looking.

Bruce