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? - f350ca - 04-12-2013

Still in the cabinet shop. Upper cabinets this time. These ones will have glass doors.

[Image: IMG_0557.jpg]

RE: Todays Project - What did you do today? - stevec - 04-13-2013

(04-12-2013, 07:30 PM)EdK Wrote: I'd be interested in that "cylinder head machining story".

Ed
Sadly Ed, I've looked through my photo files and I can't seem to find any of the pics I took of the machining process.
Here's a pic of the need to machine the head.

[attachment=5008]

Notice how "proud" the over stroking has made the pistons at TDC.
I thought of and actually made a 1/8" aluminum spacer.

[attachment=5009]

But I thought it would require 2 head gaskets and that would be too much spacing and I'd have possible leaks as well as lower compression.

RE: Todays Project - What did you do today? - dallen - 04-13-2013

(04-12-2013, 08:42 PM)EdK Wrote:
(04-12-2013, 08:15 PM)dallen Wrote:
(04-12-2013, 06:28 PM)EdK Wrote:
(04-12-2013, 05:14 PM)dallen Wrote: way back in post 1053 I posted a picture of a sheave that I made and John aka doubleboost asked how I cut the key way, well I decided to also change the one on the motor spindle so when I broached the keyway I just happened to have the camera with me.

so here's a shot of how I broached the keyway. And can anyone tell me the name of that high pressure green lube I have swabbed on the broach, I know it comes in a white plastic jar.

It's probably extreme pressure grease made by this company. I have a tube of it. It's commonly used on dead centers and available from McMaster.

http://www.cmdlubeoil.com/

I would like to see some more details on your broaching tool. I assume you made that?

Thanks,
Ed

me make a broachRotflRotflRotfl, no I bought it, its a standard 3MM broach and bushing from Dumont.

DA

Not the broach. The broaching tool. The blue thing.

Ed

Oh my mistake, thats the horizontal press that I made for working on Russian firearms, I need to add a long syphon tube in the pump so it will work in thee vertical position with the pump head at the top, then I could stand it on end and use it in a more conventional press configuration. But it sure beats the other way that I used to broach keyways.

DA

RE: Todays Project - What did you do today? - Brian - 04-14-2013

(04-12-2013, 06:53 PM)stevec Wrote:
(04-12-2013, 05:45 AM)Brian Wrote: Hi Steve
Yes you have to stop the mill every time you need to increase the diameter of the cut. in this case I was taking small cuts due to the cut being intermitant ,and the out of balance of the head.

Brian.
The reason I ask is because I no longer have access to the lovely Narex boring I had at work (it had a facing feature!) .
I had to devise my own for a cylinder head machining story I'll explain later to anyone interested.
Long and short is, I built the following device to advance the tool with every revolution.I cut a new feed screw (7/16-20) and fitted a # 25. sprocket.


It worked great! I was able to bore the head to compensate for the "overstroke" I had given the crank.
Then I built a bracket to clamp on the quill of my Tree mill.

On the bracket I added a "tooth" that would advance the sprocket one tooth. I made it so as I could lift it out of the pathof the sprocket and therefore not advance the tool.

Sorry for the jumbled pics and text. My head hurts and I'm now soothing it with another homemade brew.

I like it one on the list to remember
Brian

RE: Todays Project - What did you do today? - f350ca - 04-16-2013

Fixing a wood chipper for a chap. Poor original design. The rotor is keyed to the shaft but not fixed in any way, simply rides between the bearings. It wobbled and wore the hub and shaft. Here I'm boring the disk oversize to get it back to round. Will make a new shaft for a press fit then drill and thread the end of the shaft to clamp the rotor against a shoulder.

[Image: IMG_0561.jpg]

RE: Todays Project - What did you do today? - f350ca - 04-18-2013

Its dead on this site, if people don't soon start posting i'll have to start a thread from the cabinet shop.
Stole away again today to work on that wood chipper.
In my recycle mode I used an old truck axle to make the new shaft. Was hard but turned nicely on the big lathe with carbide. Then came time to cut the keyways, Oops a HSS end mill wouldn't touch it. Didn't have a carbide one small enough, thought about driving an hour into the city to buy one, but what if it won't cut it either. Next thought of remaking the shaft. Then this came to mind. I had a buggered 1/4 inch carbide drill bit. Over to the grinder and made a single lip cutter out of it.

[Image: IMG_0562.jpg]

Cut like a dream. 20 thou passes with coolant and we saved the shaft.

[Image: IMG_0565.jpg]

[Image: IMG_0566.jpg]

Now I need to find a bigger press. Machined the shaft for a 0.0015 interference fit but my little press won't move it all the way.

RE: Todays Project - What did you do today? - EdK - 04-19-2013

Nice rescue Greg. Saved yourself a trip into town.

Go ahead and start a thread on your cabinet shop. I'm going to start a thread on April snow storms. Smiley-signs131

Ed

RE: Todays Project - What did you do today? - f350ca - 04-19-2013

Just an idle threat to prompt people to get posting.

RE: Todays Project - What did you do today? - TomG - 04-19-2013

Hopefully people are just busy and haven't wandered off. I've been in the shop every night this week. It would be nice to see a few more new faces though.

Tom

RE: Todays Project - What did you do today? - Hawkeye - 04-19-2013

Spent the last two days welding up and installing shelves for my employer's latest van. Nice to get told to stay home and play and still get paid. Thumbsup