TorchTableTraining - Revision history

ChuckH: /* Chuck Harrison Torch Table Training */

2013-01-28T05:58:29Z

Chuck Harrison Torch Table Training

← Older revision		Revision as of 05:58, 28 January 2013
Line 27:		Line 27:

	The plasma cut left quite a bit of dross/slag. It was easy (if time-consuming) to remove it with a hammer (at the outside edges) or a chisel. By the "feel" of a hand file, there is a harder layer at the cut edge (heat affected zone) but it's only 0.010 or .020 in thick. If it's necessary to clean up the edges a grinder or sandpaper is probably preferable to a file. [[User:ChuckH\|ChuckH]] 08:11, 12 December 2012 (CET)		The plasma cut left quite a bit of dross/slag. It was easy (if time-consuming) to remove it with a hammer (at the outside edges) or a chisel. By the "feel" of a hand file, there is a harder layer at the cut edge (heat affected zone) but it's only 0.010 or .020 in thick. If it's necessary to clean up the edges a grinder or sandpaper is probably preferable to a file. [[User:ChuckH\|ChuckH]] 08:11, 12 December 2012 (CET)

			== CAD toolchain ==

			I have produced several .svg test files using extopenSCAD. I haven't worked out the kinks in importing these to the Torchmate environment. Best so far is to open the svg file in inkscape, save as eps (encapsulated postscript). Torchmate CAD will import the eps file (it offers two input filters for the eps file, "eps" and "pdf", both seem to work). Exporting immediately from Torchmate CAD to dxf, then using the Torchmate driver to generate gcode and run the table gives basic function, with the toolpath on the geometry line. Using the toolpath generation tools in Torchmate CAD resulted in duplicated cutting paths on different dxf layers (haven't yet figured out how to do this right).

			Noticed that the gcode does not include any special codes at the start/end of a cut; the command lines are just G0's (move without cut) and G1's(cut).

	[[Category:Training]]		[[Category:Training]]
	[[Category:Torch Table]]		[[Category:Torch Table]]

ChuckH: /* Fold patterns */

2012-12-12T16:27:07Z

Fold patterns

← Older revision		Revision as of 16:27, 12 December 2012
Line 26:		Line 26:
	The dotted-line fold worked quite well. This sample was about 70% perforated with 1/4-inch webs remaining. This fold line could be subsequently welded if desired. The other folds had much too wide a gap for that.		The dotted-line fold worked quite well. This sample was about 70% perforated with 1/4-inch webs remaining. This fold line could be subsequently welded if desired. The other folds had much too wide a gap for that.

	The plasma cut left quite a bit of dross/slag. It was easy (if time-consuming) to remove it with a hammer (at the outside edges) or a chisel. By the "feel" of a hand file, there is a harder layer at the cut edge (heat affected zone) but it's only 0.010 or .020 in thick. [[User:ChuckH\|ChuckH]] 08:11, 12 December 2012 (CET)		The plasma cut left quite a bit of dross/slag. It was easy (if time-consuming) to remove it with a hammer (at the outside edges) or a chisel. By the "feel" of a hand file, there is a harder layer at the cut edge (heat affected zone) but it's only 0.010 or .020 in thick. If it's necessary to clean up the edges a grinder or sandpaper is probably preferable to a file. [[User:ChuckH\|ChuckH]] 08:11, 12 December 2012 (CET)

	[[Category:Training]]		[[Category:Training]]
	[[Category:Torch Table]]		[[Category:Torch Table]]

ChuckH: /* Fold patterns */

2012-12-12T16:25:22Z

Fold patterns

← Older revision		Revision as of 16:25, 12 December 2012
Line 26:		Line 26:
	The dotted-line fold worked quite well. This sample was about 70% perforated with 1/4-inch webs remaining. This fold line could be subsequently welded if desired. The other folds had much too wide a gap for that.		The dotted-line fold worked quite well. This sample was about 70% perforated with 1/4-inch webs remaining. This fold line could be subsequently welded if desired. The other folds had much too wide a gap for that.

	The plasma cut left quite a bit of dross/slag. It was easy (if time-consuming) to remove it with a hammer (at the outside edges) or a chisel. [[User:ChuckH\|ChuckH]] 08:11, 12 December 2012 (CET)		The plasma cut left quite a bit of dross/slag. It was easy (if time-consuming) to remove it with a hammer (at the outside edges) or a chisel. By the "feel" of a hand file, there is a harder layer at the cut edge (heat affected zone) but it's only 0.010 or .020 in thick. [[User:ChuckH\|ChuckH]] 08:11, 12 December 2012 (CET)

	[[Category:Training]]		[[Category:Training]]
	[[Category:Torch Table]]		[[Category:Torch Table]]

ChuckH: /* Fold patterns */

2012-12-12T16:16:27Z

Fold patterns

← Older revision		Revision as of 16:16, 12 December 2012
Line 24:		Line 24:
	All cuts at 50amps, 80psi, 13.5ipm on Hypertherm 1000. Cut time for each sample fold part (including both perforation and outline) a bit under 2 minutes. Kerf width was about 0.10in, torch standoff ~1/8" (not really sure how accurately so) based on z-axis touch-off but without arc voltage height control. Edges were pretty square, much less bevel than I had seen in earlier cuts. Rusty felt cut speed was quite conservative and we could have moved faster.		All cuts at 50amps, 80psi, 13.5ipm on Hypertherm 1000. Cut time for each sample fold part (including both perforation and outline) a bit under 2 minutes. Kerf width was about 0.10in, torch standoff ~1/8" (not really sure how accurately so) based on z-axis touch-off but without arc voltage height control. Edges were pretty square, much less bevel than I had seen in earlier cuts. Rusty felt cut speed was quite conservative and we could have moved faster.

	The dotted-line fold worked quite well. This sample was about 70% perforated with 1/4-inch webs remaining.		The dotted-line fold worked quite well. This sample was about 70% perforated with 1/4-inch webs remaining. This fold line could be subsequently welded if desired. The other folds had much too wide a gap for that.

	The plasma cut left quite a bit of dross/slag. It was easy (if time-consuming) to remove it with a hammer (at the outside edges) or a chisel. [[User:ChuckH\|ChuckH]] 08:11, 12 December 2012 (CET)		The plasma cut left quite a bit of dross/slag. It was easy (if time-consuming) to remove it with a hammer (at the outside edges) or a chisel. [[User:ChuckH\|ChuckH]] 08:11, 12 December 2012 (CET)

ChuckH: /* Fold patterns */

2012-12-12T16:14:46Z

Fold patterns

← Older revision		Revision as of 16:14, 12 December 2012
Line 22:		Line 22:
	My first parts. Using 11ga (0.120" thick) mild steel sheet, cut four 3x6 inch coupons with fold features. Three patterns with relatively wide slots were prepared in inkscape and a fourth simple "dotted line" pattern was prepared at the machine (no file kept).		My first parts. Using 11ga (0.120" thick) mild steel sheet, cut four 3x6 inch coupons with fold features. Three patterns with relatively wide slots were prepared in inkscape and a fourth simple "dotted line" pattern was prepared at the machine (no file kept).

	All cuts at 50amps, 80psi on Hypertherm 1000. Cut time for each sample fold part (including both perforation and outline) ~~approx~~ 1~~:45~~.		All cuts at 50amps, 80psi, 13.5ipm on Hypertherm 1000. Cut time for each sample fold part (including both perforation and outline) a bit under 2 minutes. Kerf width was about 0.10in, torch standoff ~1/8" (not really sure how accurately so) based on z-axis touch-off but without arc voltage height control. Edges were pretty square, much less bevel than I had seen in earlier cuts. Rusty felt cut speed was quite conservative and we could have moved faster.

	The dotted-line fold worked quite well. This sample was about 70% perforated with 1/4-inch webs remaining.		The dotted-line fold worked quite well. This sample was about 70% perforated with 1/4-inch webs remaining.

ChuckH: /* Fold patterns */

2012-12-12T07:29:34Z

Fold patterns

← Older revision		Revision as of 07:29, 12 December 2012
Line 19:		Line 19:

	== Fold patterns ==		== Fold patterns ==
	[[File:fold_tests.svg\|thumb]] [[File:fold_samples.jpg\|thumb]] [[File:slag_chipping.jpg\|thumb]] [[File:dotted_fold.jpg\|thumb]]		[[File:torchmate.jpg\|thumb]] [[File:fold_tests.svg\|thumb]] [[File:fold_samples.jpg\|thumb]] [[File:slag_chipping.jpg\|thumb]] [[File:dotted_fold.jpg\|thumb]]
	My first parts. Using 11ga (0.120" thick) mild steel sheet, cut four 3x6 inch coupons with fold features. Three patterns with relatively wide slots were prepared in inkscape and a fourth simple "dotted line" pattern was prepared at the machine (no file kept).		My first parts. Using 11ga (0.120" thick) mild steel sheet, cut four 3x6 inch coupons with fold features. Three patterns with relatively wide slots were prepared in inkscape and a fourth simple "dotted line" pattern was prepared at the machine (no file kept).

ChuckH: /* Fold patterns */

2012-12-12T07:23:45Z

Fold patterns

← Older revision		Revision as of 07:23, 12 December 2012
Line 22:		Line 22:
	My first parts. Using 11ga (0.120" thick) mild steel sheet, cut four 3x6 inch coupons with fold features. Three patterns with relatively wide slots were prepared in inkscape and a fourth simple "dotted line" pattern was prepared at the machine (no file kept).		My first parts. Using 11ga (0.120" thick) mild steel sheet, cut four 3x6 inch coupons with fold features. Three patterns with relatively wide slots were prepared in inkscape and a fourth simple "dotted line" pattern was prepared at the machine (no file kept).

	All cuts at 50amps, 80psi on Hypertherm 1000. Cut time for ~~dotted~~ fold part (including both perforation and outline) approx 1:45.		All cuts at 50amps, 80psi on Hypertherm 1000. Cut time for each sample fold part (including both perforation and outline) approx 1:45.

	The dotted-line fold worked quite well. This sample was about 70% perforated with 1/4-inch webs remaining.		The dotted-line fold worked quite well. This sample was about 70% perforated with 1/4-inch webs remaining.

ChuckH: /* Fold patterns */

2012-12-12T07:21:14Z

Fold patterns

← Older revision		Revision as of 07:21, 12 December 2012
Line 21:		Line 21:
	[[File:fold_tests.svg\|thumb]] [[File:fold_samples.jpg\|thumb]] [[File:slag_chipping.jpg\|thumb]] [[File:dotted_fold.jpg\|thumb]]		[[File:fold_tests.svg\|thumb]] [[File:fold_samples.jpg\|thumb]] [[File:slag_chipping.jpg\|thumb]] [[File:dotted_fold.jpg\|thumb]]
	My first parts. Using 11ga (0.120" thick) mild steel sheet, cut four 3x6 inch coupons with fold features. Three patterns with relatively wide slots were prepared in inkscape and a fourth simple "dotted line" pattern was prepared at the machine (no file kept).		My first parts. Using 11ga (0.120" thick) mild steel sheet, cut four 3x6 inch coupons with fold features. Three patterns with relatively wide slots were prepared in inkscape and a fourth simple "dotted line" pattern was prepared at the machine (no file kept).

			All cuts at 50amps, 80psi on Hypertherm 1000. Cut time for dotted fold part (including both perforation and outline) approx 1:45.

	The dotted-line fold worked quite well. This sample was about 70% perforated with 1/4-inch webs remaining.		The dotted-line fold worked quite well. This sample was about 70% perforated with 1/4-inch webs remaining.

ChuckH: /* Fold patterns */

2012-12-12T07:19:25Z

Fold patterns

← Older revision		Revision as of 07:19, 12 December 2012
Line 19:		Line 19:

	== Fold patterns ==		== Fold patterns ==
	[[File:fold_tests.svg\|thumb]] [[File:fold_samples.jpg\|thumb]] [[File:slag_chipping.jpg\|thumb]] [[File:~~dotted-fold~~.jpg\|thumb]]		[[File:fold_tests.svg\|thumb]] [[File:fold_samples.jpg\|thumb]] [[File:slag_chipping.jpg\|thumb]] [[File:dotted_fold.jpg\|thumb]]
	My first parts. Using 11ga (0.120" thick) mild steel sheet, cut four 3x6 inch coupons with fold features. Three patterns with relatively wide slots were prepared in inkscape and a fourth simple "dotted line" pattern was prepared at the machine (no file kept).		My first parts. Using 11ga (0.120" thick) mild steel sheet, cut four 3x6 inch coupons with fold features. Three patterns with relatively wide slots were prepared in inkscape and a fourth simple "dotted line" pattern was prepared at the machine (no file kept).

ChuckH: /* Fold patterns */

2012-12-12T07:18:00Z

Fold patterns

← Older revision		Revision as of 07:18, 12 December 2012
Line 19:		Line 19:

	== Fold patterns ==		== Fold patterns ==
	[[File:fold_tests.svg\|thumb]] [[File:fold_samples.jpg\|thumb]] [[File:slag_chipping.jpg\|thumb]]		[[File:fold_tests.svg\|thumb]] [[File:fold_samples.jpg\|thumb]] [[File:slag_chipping.jpg\|thumb]] [[File:dotted-fold.jpg\|thumb]]
	My first parts. Using 11ga (0.120" thick) mild steel sheet, cut four 3x6 inch coupons with fold features. Three patterns with relatively wide slots were prepared in inkscape and a fourth simple "dotted line" pattern was prepared at the machine (no file kept).		My first parts. Using 11ga (0.120" thick) mild steel sheet, cut four 3x6 inch coupons with fold features. Three patterns with relatively wide slots were prepared in inkscape and a fourth simple "dotted line" pattern was prepared at the machine (no file kept).