ulma doctor

I recently purchased bench centers at auction for a ridiculously low bid of $37. i honestly didn't think i would win, but surprise, surprise!!! the bummer part is that there was no indicator stand or attachment hardware present. I'll take that as an opportunity to copy Starrett's idea for...

My brother is an electrician. he uses knockout punches for work daily. he came across a malfunctioning hydraulic punch that was eventually given to him. the punch is quite used. the pins that secure the actuator handle and frame were worn through. my brother asked if i could make new pins he...

inspection equipment

At my day job, i work with sharpening equipment for various types of blades used in the processing and packaging of meat, nut, and vegetable products that we all consume daily. chances are good (if you lived in the United States in the last 30 years) that you have eaten something that has been...

My good ol' Shenwai SW900B is showing signs of excessive slop at the dial. excessive slop for me is right around .050" after pondering materials to construct a new nut from, delrin was immediately apparent. its tough and structurally sound, it's easy to get and cheaper than other materials...

i have a growing collection of junk art abominations in front of my house. this is an addition to the clan :grin: i got into some fun on Sunday, so much so that it extended into Monday evening. The fun, being the creation of a junk art lobster, just for fun! the fun started off innocently...

I have a wonderful South Bend 14" Drill Press that i got from fellow member @TAWP Tool :grin: i tried to utilize the drill press with just the OEM pulleys from the 56 frame 1725 rpm, 1/2 Hp motor @115v, for a couple years- but the spindle was turning waaay too fast for my taste or use...

I have some beautiful BC Ames dial indicators that have a mount system that i had no way of attachment to my indicator stands my other indicators have a lug back that is easy to attach to my indicator stands with a pin and knurled nut like this... here is the mount stud and knurled nut...

A couple years ago, I made a very quick and dirty rotary broach for a project i was working on in my normal job https://www.hobby-machinist.com/threads/shop-made-rotary-broach-down-and-dirty.48805/ it worked for the purpose it was intended, but i wanted to make an improved version. the new...

I purchased a beautiful Hercus ARH lathe a few years ago. https://www.hobby-machinist.com/threads/hercus-9-workshop-lathe-model-arh-serial-15548v.24143/ i love this machine, but the original owner didn't wire the drum switch for direction. it only ran in the spindle CCW direction ,whichever...

1979 Boyar-Schultz H618 Challenger Surface Grinder

I came across a wonderful find on CL. a gently used 1979 Boyar-Schultz H618 surface grinder. this unit was purchased new by the previous owner and saw a good life. we pulled the table off and i inspected the ways, the ways are very nice indeed with only the very faintest signs of wear. the oil...

Chuck Key from 304 stainless steel

i got the idea to make my own dial indicator holder for my AXA toolposts i have an modest abundance of 2" square solid 6061 aluminum in different lengths up to 5' long it has holes and tapped holes from when it was in service as meat processing equipment, so i cut it into differing lengths...

i'm certainly no carpenter, and definitely not a furniture maker. my brother has a dresser drawer that had a dovetail slide under the drawer that had broken. the problem is that the female half of the dovetail has a very thin cross section at the base of the dovetail. to compound the problem...

I have a horizontal rotary surface grinder that is used to flatten and sharpen many different items at the shop. I have a few different wheels that get used for different materials. I found a good deal on some wheels i haven't used in awhile. The problem is that the drive arbor hole is smaller...

Hello ladies and gentlemen, i found some very interesting videos on youtube. i believe they were produced in the 80's at a guess, but very good information here is the video list: https://www.youtube.com/channel/UC6G6nfxpNP4tLZdJFIkx69w/videos and a sample video. i hope you enjoy!

i started construction on a MT3 slitting saw arbor from materials in the shop. here is the slug of what i believe to be 12L14 mild steel. it was unmarked, but acted like 12L14 i have machined before. it's very nice to turn. the slug was a fraction over 1" in diameter and 7" long. i...

I learned of the Antikythera Mechanism in High School from my chemistry teacher, in one of many after school discussions. He explained it as a complicated and intricate mechanical computer made by the ancients, boy he was not kidding. i really didn't gain full appreciation for what it may have...

1980 Bridgeport Series 1, 1J Step Pulley head, 1Hp