Yo necesitaba una prensa de mano (sargento), pero grandecita. Cuando fui a ver los precios, me dije "mejor la hago yo". Acá les muestro cómo la hice, con muy poco dinero. Compré por unos 5 U$S unos trozos de hierro T de 1 pulgada x 1/8, de los cuales me sobró una tercera parte. Los demás elementos los tenía en casa. O sea que a grandes rasgos podría estimar en 3 U$S el costo de la prensa de mano.
Thanks to those who help me to correct my English mistakes!
I needed a hand press, but a bit one. When I went to see the prices, I said 'better that I do it myself". Here I show how I did it with very little money. I bought some T iron pieces of 1 inch x 1/8 for $5USD, of which about a third is extra. I had the other elements at home. So I estimate the cost at roughly $3USD for the clamp.
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Signing UpStep 1: La base (the base)
Decidí que mi prensa tendría una profundidad de garganta de unos 15 cm, y de acuerdo a eso hice un corte en uno de los trozos de hierro T, sin llegar a separar totalmente la parte cortada. La doblé en ángulo recto y reforcé con soldadura la articulación. Luego corté un trocito trapezoidal de varilla de 1/2 pulgada x 1/8 y lo soldé entre las dos partes de la nervadura que quedaron separadas.
I decided that my clamp would have a throat depth of about 15 cm (~6 inches), and according to that I cut one rib of the iron T. Then bent it at right angle and reinforced the joint with a weld bead. Then I cut a trapezoidal piece of steel 1/2 inch x 1/8 and welded that between the two sides of the ribs that were separated.












































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Thanks for your comment, soul_eater. I hope to see soon your instructable.
También en la parte de la varilla roscada donde va la arandela, seguro te va a ser más fácil para remacharla hacerle un huequito primero con una mecha (un poquito nomás alcanza). También podés probar remacharla con un punto de marcar o algo parecido.
Me parece que ahora me voy a hacer un par yo pero chiquitas que no tengo ninguna en casa.
Saludos!
Hice un par de sagentitos un poco más chicos, se los regalé a mi hijo para su cumpleaños. Si me acuerdo cuando lo visite, les voy a sacar una foto para agregarla al instructable.
Thanks for the tip! Nice these long nuts, I will try to get them, but maybe in La Plata, because here in Villa Elisa, thanks if I get the ordinary.
I made a couple of littler presses, gave them to my son for his birthday. If I remember when I visit, I will take a picture to add to the instructable.
This looks like a great project for my welding students.
For step 3:
There is something called a coupling nut, it is a long nut (about one inch) that is used to join two pieces of threaded rod. You can find them in any hardware store (or big homely orange or lowly blue) for less than a dollar. It would replace the three welded nuts and you would not need to rethread it when you were done.
Thanks again for a great idea!
Mikey
And thanks for the comment, too!
In step three.... to help avoid the warping when welding on the nut, tack weld all 6 corners of each nut to the next nut, before tying onto the slide body for welding.
If the threaded rod is STILL tight, once the welding is done, because of misalignment, run another small weld bead on the outside of the nut assembly. this should pull the threaded hold back into alignment.
Step 4 could use another 4-5 pictures to help explain this CRITICAL step.
I'm sure we can all figure it out, but the point is so that we don't HAVE to :-)
[sorry, just read the picture note saying you missed taking the pictures]
2) I missed to take photos of the process, but I will put two or three of the finished slider. It is simple.
3) Thanks for your comment.
Having more than one is a good idea and in a few sizes, too!
Surely I will do another/s.