tag:blogger.com,1999:blog-1321553715454450871.post2568837192044835306..comments2024-03-27T12:51:12.930-07:00Comments on Woodworking in a Tiny Shop: Fixing and Fettling a Wooden Plow / Plough Plane - Part 4Tiny Shop Woodworkshttp://www.blogger.com/profile/10375332433853904113noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-1321553715454450871.post-26608684533115220482017-05-15T21:57:42.556-07:002017-05-15T21:57:42.556-07:00Thanks for the comments, Steve. I had noticed tha...Thanks for the comments, Steve. I had noticed that the irons are narrower on the bevel side than on the flat side and realized that this was for clearance. I did have a passing thought about grinding the irons to the nominal thicknesses, but I wasn't actually going to attempt it.Tiny Shop Woodworkshttps://www.blogger.com/profile/10375332433853904113noreply@blogger.comtag:blogger.com,1999:blog-1321553715454450871.post-68354196644715043972017-05-15T20:04:52.997-07:002017-05-15T20:04:52.997-07:00I think I have the same plane.
Two comments on th...I think I have the same plane.<br /><br />Two comments on the sizing discrepancy.<br /><br />One is that the groove closes in slightly on the cutter if you aren't tilting the plane in use. The sides of the grooves are a little ragged and won't match the dimension of the cutter exactly.<br /><br />Second, the sides of the cutters are relieved so they don't bind in the groove when it is slightly smaller above the edge. Gradually, the cutter will narrow over its life but that is decades of use for a hobbyist. Trying to narrow the cutter by grinding down will have to replicate this side relief or the cutter will lock up badly in deep cuts.<br /><br />For the cutters that are .010 over, I would recommend cutting a groove and then put a strip of wood the nominal thickness in to check the fit. It may not be as loose as you are expecting.<br /><br />Good luck.<br />SteveSteve Dnoreply@blogger.comtag:blogger.com,1999:blog-1321553715454450871.post-24816879993010050362017-04-30T11:34:59.499-07:002017-04-30T11:34:59.499-07:00Yes, I'm finding this out. I guess this is al...Yes, I'm finding this out. I guess this is all part of the transition from power tool thinking/woodworking to hand tool thinking/woodworking.Tiny Shop Woodworkshttps://www.blogger.com/profile/10375332433853904113noreply@blogger.comtag:blogger.com,1999:blog-1321553715454450871.post-41793173808818485712017-04-30T11:33:21.894-07:002017-04-30T11:33:21.894-07:00Great perspective, Bob. Thanks for that.Great perspective, Bob. Thanks for that.Tiny Shop Woodworkshttps://www.blogger.com/profile/10375332433853904113noreply@blogger.comtag:blogger.com,1999:blog-1321553715454450871.post-26966602450727669632017-04-30T11:31:37.880-07:002017-04-30T11:31:37.880-07:00Hi Kees. Sure would be nice if these things were ...Hi Kees. Sure would be nice if these things were standardized. But I've got to realize that a hundred years ago things were bound to be different.Tiny Shop Woodworkshttps://www.blogger.com/profile/10375332433853904113noreply@blogger.comtag:blogger.com,1999:blog-1321553715454450871.post-61714513968479072252017-04-29T08:07:46.974-07:002017-04-29T08:07:46.974-07:00That looks like great set of laminated irons. I&#...That looks like great set of laminated irons. I'm not too surprised by the variances in the sizes. Keep in mind that bolts and nuts were not globally standardized until 1948. As Bob stated, "Exact measurements is really a more modern invention". Gregory Merritthttps://www.blogger.com/profile/08626596539743806187noreply@blogger.comtag:blogger.com,1999:blog-1321553715454450871.post-74144529769048158312017-04-29T03:50:31.902-07:002017-04-29T03:50:31.902-07:00Nice set of plow irons.
As you found out, it is v...Nice set of plow irons. <br />As you found out, it is very usual to find under or over sized tooling with antique tools. Sizes are nominal, were hand forged and due to rust and subsequent cleaning, sharpening etc get a smidge smaller. Mixing tooling between makers, country of origins or even vintage period also will results in inconsistency. You will rarely if ever find actual bang on measurements on antique. Do we care? Not really, you use the tools to make its corresponding groove and match it with a similar sized chisel. As Kees found out, no guarantees of this happening neither with various tooling... <br />The only thing that really matter are the fact that you got a nice graduated set (No 1 to 8) <br /><br />Exact measurements is really a more modern invention<br /><br />Bob, the old tool guyValley Woodworkerhttps://www.blogger.com/profile/07322487171914484954noreply@blogger.comtag:blogger.com,1999:blog-1321553715454450871.post-39593879466334092632017-04-29T01:44:24.373-07:002017-04-29T01:44:24.373-07:00Yeah, and none of my plow irons agrees with any of...Yeah, and none of my plow irons agrees with any of my mortice chisels, which aren't particularly close to nominal either! Oh well, a mortice doesn't really need to be as wide as the groove next to it.<br />Keeshttps://www.blogger.com/profile/06618388647421144564noreply@blogger.comtag:blogger.com,1999:blog-1321553715454450871.post-24218596425436772052017-04-28T17:55:22.769-07:002017-04-28T17:55:22.769-07:00Ralph, I made sure to measure at the business end,...Ralph, I made sure to measure at the business end, side to side. Had to register off the edges because the iron tapers down on the bevel side. Just for kicks, I checked to see if my decimal measurements were close to any whole number metric values, but no go there, too. Your numbers are pretty far off, too. I guess we both have to make sure to keep that in mind when it comes time to use it.Tiny Shop Woodworkshttps://www.blogger.com/profile/10375332433853904113noreply@blogger.comtag:blogger.com,1999:blog-1321553715454450871.post-30846926684046489512017-04-28T16:31:15.608-07:002017-04-28T16:31:15.608-07:00Where did you take the measurements Matt? Ibbotson...Where did you take the measurements Matt? Ibbotson had a good reputation and I'm surprised these are so far off.<br />I just measured my mixed english set of plow plane irons and they are all are over the nominal. It shouldn't make any difference as long as you reference everything off of them. But still, I would have expected a tighter tolerance. 1-8 .166 .198 .261 .325 .400 .448 .523 .571 I measured all of mine at the end of the iron.Ralph Boumenothttps://www.blogger.com/profile/10606484453109932074noreply@blogger.com