MetalworkingFun Forum
Todays Project - What did you do today? - Printable Version

+- MetalworkingFun Forum (http://www.metalworkingfun.com)
+-- Forum: Machining (http://www.metalworkingfun.com/forum-5.html)
+--- Forum: Projects (http://www.metalworkingfun.com/forum-7.html)
+--- Thread: Todays Project - What did you do today? (/thread-727.html)

Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552

RE: Todays Project - What did you do today? - TomG - 10-12-2017

I think it's too far away to help us, Stan. Probably be cheaper just to buy it from McMaster Carr.

RE: Todays Project - What did you do today? - SteveG - 10-13-2017

(10-12-2017, 06:11 PM)Dr Stan Wrote:
(10-12-2017, 05:04 AM)SteveG Wrote: Nice work Pete.
While stumbling around on local ebay just now I came across a seller in QLD that does short lengths of cast iron round bar. Looks like a metal merchant that's aiming at the hobbyist. Ebay isn't somewhere I'd have looked for it, but certainly convenient for a one-off project that you can wait a few days for.

Steve

Is the name of the seller a state secret?

No, not at all - the seller is micad_eng.

RE: Todays Project - What did you do today? - Dr Stan - 10-13-2017

(10-12-2017, 06:48 PM)TomG Wrote: I think it's too far away to help us, Stan. Probably be cheaper just to buy it from McMaster Carr.

Your correct as I didn't pay close enough attention to the poster's location.

RE: Todays Project - What did you do today? - f350ca - 10-18-2017

Wanted some additional tool holders for my QCTP. Machined a 12 inch long blank to cut blocks from.
[Image: 6Q-ijrJSwZoHycf1ktFrtbwsvk9zKtUEogpszqFG...47-h729-no]

Or one really big one.

[Image: WCl4XndpxTCbv6yKnPygzXodaHgMQq-pNo_iXfm3...47-h729-no]

RE: Todays Project - What did you do today? - Pete O - 10-18-2017

Is that a shop-made toolholder on the shaper Greg?

RE: Todays Project - What did you do today? - f350ca - 10-18-2017

One that my uncle made in trade school in the 40's Pete. Takes 1/2 inch cutters. Kind of an interesting design, there are set screws on both sides to clamp the cutter so it can be used right or left handed.

RE: Todays Project - What did you do today? - pepi - 10-19-2017

Moving the rest of this post started in new arrivals. Another trip to the bandsaw produced a blank with dimensions. Some lathe work, drilling and boring a hole too 1 5/16 for the bearings.

[attachment=15181]

Back to the mill, drilled two 7/16 relief holes in the corners.

[attachment=15182]

Again back to the bandsaw for a trim to ruff finish dimensions.

[attachment=15183]


Cleaned up for a photo, what's left some finish milling. Drill a hole to be tapped for a set screw that fits a grove in the bearing, preventing the bearing from walking. On the tabs slots for the belt and chain  tension.

[attachment=15184]

Greg

RE: Todays Project - What did you do today? - f350ca - 10-24-2017

Made the first tool holder out of that blank. Needed one wide enough for this thread cutter. Tried milling the shank down but its hard as, a mother in laws heart. A carbide insert end mill made sparks.
[Image: VVOBlPBrOfFrceImA8Pq1SASR_uy0PUcdXFbmvpv...45-h634-no]

Now need to find time to try the cutter. Too busy at other peoples projects, but guess they pay the bills.
Just sprayed an etching primer on this railing, hope to be gone tomorrow.
[Image: ijnB_AwSn5FvEs14GxBtZiAs0vpQ0k8SpH0Hoeac...47-h729-no]

RE: Todays Project - What did you do today? - Mayhem - 10-29-2017

The neighbour's son races bikes and asked me if I could make up something to adapt a quad piston Brembo caliper to a new rim and disc that he wants to run.  I took the centre to centre bolt hole measurements and a picture of the forks, which I imported into Fusion 360.  A bit of playing and I came up with this:

[attachment=15198]
[attachment=15199]

I'm a bit disappointed with the radius on the right hand end.  My rotary table has 12mm T-slots but the base is too narrow, so the ones for my mill won't fit.  I used some bolts and cobbled something together that I thought would work, only to have it slip and put a flat spot on there.  Tried to blend it with a file but didn't want to take off too much.  It is now happily deburring in the tumbler.

Other than that I'm happy.  I've told the owner that I strongly advise they take it to an engineer to have it inspected before heading down the back straight, as I don't want to be responsible for him becoming a greasy spot on the armco barrier  Yikes

RE: Todays Project - What did you do today? - f350ca - 10-29-2017

Need a smaller 4 jaw for the Summit, the 16 inch only closes to a little over inch, so have to pad the jaws if I need to cut a metric thread on a small shaft. Found a deal on a Chinese 8 inch, $114, looks reasonable.
Was given a D1-8 backplate, I believe part of a chuck. A little rusty but with some Evaporust and some polishing the taper and pins came up nice.
[Image: 7p1BlfaiDCjf8SnIvzOo-TuudfPujqDm1Bb0ocwj...47-h729-no]

There was a large lump in the middle that needed to be removed. The one surface was hardened, got glowing chips for the first few thou as I was facing it.
[Image: ABsORXIDL8g0srKpJXC7J4a8ZNc_kH1QiGVLHAf1...47-h729-no]

Managed to get a small indexing lip in the bore of the chuck, the back was flat, no index on the outside.
[Image: w-5jnbMlGLdgjxsZfvQEyFcsWJT2z4zjJb8YzfX4...47-h729-no]

Now need to drill and thread the back plate. Will turn some of the OD off but can't quite get to the 8 inch dia of the chuck, I'd be too close to the mounting pins, they're about 7 3/4 on the outside.
Will mount it then grab the chuck body in the big 4 jaw to turn it. The spindle flange is too big to get it down to where I want it.