MetalworkingFun Forum

Full Version: Todays Project - What did you do today?
You're currently viewing a stripped down version of our content. View the full version with proper formatting.
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
Greg,
Wow, does tend to look like fun Thumbsup
Smiley-eatdrink004
DaveH
Well I finally have something to contribute to this thread.

I cut up some steel in preparation for welding practice.

[attachment=2990]

And cut up a piece of aluminum for an indicator holder I'm making.

[attachment=2991]

And finally got started on my cat eye. I started with a 1/4" drill bit and went up to 1/2" in 1/32 steps. I'm pretty sure that's leaded steel but I'll find out when I go to bore it out.

[attachment=2992]

I know, all pretty boring stuff but at least I got some time in the shop.

Ed
(09-17-2012, 06:56 PM)EdK Wrote: [ -> ]And finally got started on my cat eye. I started with a 1/4" drill bit and went up to 1/2" in 1/32 steps.
Ed

Ed, do you mean you chucked 8 different drills to reach ½ inch?
You really wanted TIME in the shop.
Hi Ed,

"Cat eye" what's one of them then?Smiley-dancenana
Smiley-eatdrink004
DaveH
(09-17-2012, 06:56 PM)EdK Wrote: [ -> ]And finally got started on my cat eye. I started with a 1/4" drill bit and went up to 1/2" in 1/32 steps. I'm pretty sure that's leaded steel but I'll find out when I go to bore it out.

Come on Steve, maybe he had good reason to spend a little extra time in the shop! Big Grin

Since this site is all about learning Ed, this is how I would have done it:

I don't use a pilot drill for drills up to 1/2". Most of my smaller drills have a split point, so they don't require a pilot but even if they didn't, the chisel point on a 1/2" drill is not large enough to worry about. On drills over 1/2" I drill a pilot hole about the size of the chisel point so it takes less force to feed the drill. Even a 1" drill goes in pretty easy with a 1/4" pilot hole.

An incremental step to the final size will tend to make a rounder hole, but if that's important I'll normally ream or bore it to size.

Tom
(09-18-2012, 08:58 AM)DaveH Wrote: [ -> ]Hi Ed,

"Cat eye" what's one of them then?Smiley-dancenana
Smiley-eatdrink004
DaveH

It's those things you find in a "cat head" of course. Big Grin

[Image: images?q=tbn:ANd9GcRjbdkW2ZtxVXQ8twob9Ft...nYWD9YVl6F]
(09-18-2012, 09:09 AM)TomG Wrote: [ -> ]I don't use a pilot drill for drills up to 1/2". Most of my smaller drills have a split point, so they don't require a pilot but even if they didn't, the chisel point on a 1/2" drill is not large enough to worry about.

Tom

I guess I'm in the middle then. Big Grin

Split points go straight in, but 1/4" is my limit for chisel points. Anything larger than that gets a pilot hole the width of the chisel point on the final drill size, and I go straight to it.
Guys,

I purposely made the statement "I started with a 1/4" drill bit and went up to 1/2" in 1/32 steps." because I knew it would elicit some comments and that's what I was looking for. I guess I baited you. I started with the 1/4" bit because I didn't know what type of steel it was and I wanted to get a feel for how it drilled. I thought it was always good to start with a pilot hole so thanks Tom for your comments about drilling up to 1/2" with no pilot hole needed. I don't have split point drill bits though. I'm sure I could have gone from the 1/4" bit right to the 1/2" put wasn't sure that was the proper procedure. Now that I know it is, next time I'll save my self some time and skip the pilot hole, although it did serve a purpose this time in helping me get a feel for how the unknown steel was going to dill.

Thanks for the comments.

Ed
(09-18-2012, 09:35 AM)Highpower Wrote: [ -> ]
(09-18-2012, 09:09 AM)TomG Wrote: [ -> ]I don't use a pilot drill for drills up to 1/2". Most of my smaller drills have a split point, so they don't require a pilot but even if they didn't, the chisel point on a 1/2" drill is not large enough to worry about.

Tom
Split points go straight in, but 1/4" is my limit for chisel points.

I have been accused of "living on the edge". Cool

Tom
RotflRotflRotflRotflRotfl

Yeah, I can believe that Tom. Big Grin
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