Nice video and explanation.

Another fun build.

5:34 the pivotal point where the project can either be a t-bolt or a Twin Towers souvenir.

When I kitted up my mill with a few holdings thingies I just went out and bought a selection of high tensile steel hex head bolts and added a bit of weld to each of 2 sides of the hex to prevent them from turning when tightening...........I never was a fan of tee nuts but I have made some for smaller diam bolts when jobs are not all that massive to warrant heavier holding bolts. One method I did many years ago in a factory was Tee nuts that were really slotted nuts and had a slot in the side and a section above the table to screw heavier bolts into......this gives you double the amount of thread in the nut and you can use bolts the same diam as the table slot without a problem.

Where do u find all that cool old junk steel?

@JeremyMakesThings

2 жыл бұрын

Down by the river.

What feed rate are you getting on your Logan for turning and which combination of gears are you using to get it? It looks very fine, is it finer than the .004 or whatever the chart inside the cover goes down to

@JeremyMakesThings

2 жыл бұрын

I was playing with finer feeds for a while, but I honestly never did the math on what it worked out to, and I don’t really remember what the gear ratios were. I just swapped in bigger gears for the 48 and 54 tooth gears.

@FliesLikeABrick

2 жыл бұрын

@@JeremyMakesThings thanks for the reply. I'll have to look what I am using. Like you, I really try not to touch the change gears in my Logan 200. Threading is with dies, and by the time I want to do esoteric or other single-point threading I hope to have my Harrison 10AA (rebadged Colchester Chipmaster) ready for use which has substantially more power, range of speed, and QC gearbox. It's been sitting in the shop with a bad oil leak since I bought it ... 2 years ago. On the Logan, I think I found a combination of gears that goes slightly slower than the table, maybe based on a forum post I found a few years ago. I'll have to look and see what I have in there.

What brand of mill is this?

@JeremyMakesThings

3 жыл бұрын

It’s an Index model 40H made in 1947.

@craigtate5930

3 жыл бұрын

@@JeremyMakesThings very cool, I thought it was an off brand...I am kind of a mill junkie you might say..lol It uses brown n sharpe #9 right? I heard you say you have trouble getting the collet chuck out of the spindle I thought... I did also on my Cochrane bly, I came up with a way to apply downward force using the weight of the knee, and a lil tap on the draw bar. Makes a huge difference, if you like I will try to find the video and link ya too it

@JeremyMakesThings

3 жыл бұрын

@@craigtate5930 b&s 9, yes. I’ve tried nuts about everything to get that collet chuck out- pushing, pulling, pressing, heating, etc.

@craigtate5930

3 жыл бұрын

@@JeremyMakesThings yikes, yeah I think your pretty stuck then