TomE

I'm using gum trag and a large glass slicker from SLC to seal the flesh side of veg tan straps for bridles. Will experiment with chrome tanned but I doubt there's a difference in this regard.

I bought a new Blanchard 10cm plough gauge and find it pushes the strap so hard against the guide that it takes a great effort to cut 8-10 oz veg tan. This is most noticeable with narrow straps, 1 inch or less. The strap has a tendency to ride up on the guide to relieve the pressure as it exits the blade. I understand that the one sided bevel on the knife is designed to keep the strap against the guide but it seems excessive. I sharpened and honed the blade and it is quite sharp by my standards. It easily slices through 12 oz HO veg tan when using the knife freehand without the plough gauge. The bevel on the new knife was a bit rounded and I worked on flattening the bevel (20-25 deg. taper) as well as the flat backside, finishing with a 4000 grit waterstone and stropping. This didn't relieve the pressure. Next I tried shimming the blade a slight amount, moving the point away from the guide. No improvement. Finally, I put a tiny (barely visible) taper on the backside of the blade edge. No change. I'd appreciate suggestions about sharpening and using a plough gauge. Previously I've had good results using a draw gauge and a wooden strap cutter. I bought the plough gauge to cut wider straps consistently, although most of my strap work is in the 3/8 to 1-1/4 inch widths.

Keeping your awl sharp and correctly shaped is a big factor in generating quality stitching. The Stohlman books show how. I use Osborne awls and harness needles, and like most of their tools the awls take a bit of work to get ready for use. I do a lot of hand sewing with #207 or #277 bonded nylon thread in combination with machine sewing. You can wax any thread and use it for hand sewing.

If you search the leather sewing machines forum for "inline presser foot" and "paddle foot." you'll see some options for sewing next to a raised piece. I don't know the available options for your machine. I use the inline presser foot for the Cowboy 4500 on my Cobra Class 4 machine. It requires about 3/16" of edge allowance to operate. If you have the option you can trim the edge after sewing. In tighter spaces I sew by hand.

I learned more from those books than from watching many Youtube instructional videos. Lots of construction tips that apply to many types of projects. Stohlman’s book on Leathercraft Tools is another worthwhile read. I think @Dwight is referring to what I learned as a single needle backstitch. JH Leather has a video on making a running loop that shows the process.

Time to buy "The Art of Hand Sewing Leather" and learn a new skill. This task is similar to repairing tack - fixing broken stitches by hand.

From Stohlman's The Art of Making Leather Cases Vol. 2.

Yes, you could get something useful for that price like a side of leather.

https://www.weaverleathersupply.com/catalog/item-detail/65-3041/leather-thickness-gauge/pr_8768

Bottom scale is ounces. https://www.springfieldleather.com/SLC-Plastic-Leather-Gauge

I just received the book from a seller in the U.K. I’m enjoying the learning. Maybe I’ll be able to do a repair someday. For skiving, I’m using an Osborn #67 knife with a rounded blade. I also like using a round knife but mine is big and the points get in the way of holding on to the strap. Guess I need a half round knife.

Yes, thanks so much @jcuk. I’m also making good progress on sewing fixed loops in the 3/8 in straps - using your tips, and I bought some smaller tacks to assemble the work before sewing. Got distracted by the endless variations of nose bands, and learning to skive to make swelled nose bands. Should have my first bridle finished soon.

In the book "To Handmake a Saddle" JHL Shields mentions covering the springs of the tree with "basil," which according to Wikipedia is radoul tanned leather. Does anyone know if this leather is still available or what a modern equivalent (weight? tannage?) would be? He is describing the build of an English saddle.

Mike Graham, owner of Ruxton's Trading Post (Manitou Springs CO), is an expert appraiser of collectable/historic saddles. He was a regular contributor to Western Horseman when we subscribed.

https://leatherworker.net/forum/topic/19121-casing-leather/

https://vergez-blanchard.fr/en/saddlers-cutters-and-round-knives/2051-adjustable-edge-creaser-boxwood-handle.html

There are few quail left in MO as well. Small farms becoming subdivisions. Makes my day when I see a meadowlark. Look forward to seeing your project.

Meadowlark is a favorite. Distinctive song from solitary bird pearched along the edge of a pasture.

With the in-line presser feet, I back out of the corners for a few stitches then switch to forward stitching. This gives the rear foot a place to set down when moving away from a corner.

I had the same problem when I began sewing halters. I am wet forming 2-3 layers of 10-12 oz leather around the hardware and there's a steep change in thickness that the presser foot has trouble climbing. @rdl123 gave me a tip that I've used on every halter since. Begin sewing 4 holes away from the hardware and leave long tails on the threads. Back stitch by hand up to the hardware. In your case, you can sew the beginning and the end of the stitch line by hand. Will make the job look neat and keep the hardware snug so there's less wear on the leather. Also, I don't think it's necessary to stitch across the width of the strap. According to Stohlman, the stitches should run lengthwise along the strap for the strongest construction.

Mike Graham, the owner of Ruxton’s Trading Post in Manitou Springs, Colorado does saddle evaluations for The Western Horseman magazine. He and his wife, Gretchen, specialize in collectible pieces of Western Americana. The couple wrote the book Old Cowboy Saddles and Spurs, Identifying The Craftsmen Who Made Them.

Did not know about RJF leather. I've been using HO bridle and been pleased with the consistency and finish of the grain. The flesh side has this pastey thing going on that I'm not thrilled with. Doesn't affect halters made of 2-3 layers, but I'm starting to make bridles and not thrilled with having that junk on the back side of cheek pieces and throat straps. Maybe there's a better way to finish it with a slicker. How does the RJF bridle leather compare to W&C or HO?

Another help for old eyes is a headlamp and/or a LED light like this one. https://leathermachineco.com/product/lda-1-led-magnetic-light/

Spray with Kroil Oil. Wait. Tap on the roller with a plastic mallet. Repeat as needed. Patience is the secret for restoring vintage autos. Can make penetrating oil in larger quantities from a mixture of hydraulic oil and automatic transmission fluid.

Agree with @Charley1. Molten lead can be worked with safely provided you take precautions (eye protection, gloves, ventilation). Cast iron waste pipes are joined with lead seals. Plumbing supplies carry the materials. Lead is cheap.