Ukusebenzisana
UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
V-Slide Tubing Cutter: Two Slide Halves Held on the Ways by One Spring Clip, a Reamer on the Frame (Thewes, 1938)
William O. Thewes of North Ridgeville, Ohio, received US 2,130,934, dated 20 September 1938 and assigned to The Ridge Tool Company, for a cutter for thin copper and brass tubing. A C-frame carries a cutting wheel at one end and a feed screw at the other. The screw pushes a V-slide that holds the tube against the wheel. The slide is two halves on ways along the frame, held together by one V-shaped spring clip, which is also the face the tube bears on. A triangular reamer on the side of the frame cleans the cut end, and the frame is its handle.
We saw the frame from steel plate and pin the reamer in. His parts were die cast. All sizes are ours.
Ophakathi
About 3 days
Imiyalelo
1
1
Where the tube sits
Where the tube sits
Ilayisha incwadi ye-Jupyter…
2
2
Read US 2,130,934
Read US 2,130,934
"With my improved cutter the ways or guides are integral with the frame and are uninterrupted throughout the length of the frame, and the slide is held in close sliding engagement on the ways without the use of bolts or rivets."
3
3
Print the template
Print the template
Frame, slide half, end section, reamer and clip blank at 1:1 on A4, with the 8 and 28 mm tubes drawn in. print at 100 % (check the 50 mm bar).
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4
Saw out the frame
Saw out the frame
Glue the frame outline on 16 mm plate. Drill a row of holes inside the C, saw to them, and file to the line. Saw the 7 mm wheel slot down through the wheel post with two cuts, break out the middle and file it flat. Drill the 5 mm wheel pin and 4 mm tie pin holes across the slot. Drill 8.5 mm along the screw axis through the other post and tap it M10.
Izinto zokwakha zalesi sinyathelo:
Ishidi lensimbi ethambile1 ucezuAmathuluzi adingekayo:
Isaha Sensimbi
Iqoqo Lamafayela
Ibhola Elimile
Isibambo Somshini
Iqoqo Lamakhanda Ebhola
Isethi yokusika izikulufu
Isibhoboza Sesikhungo
Insimbi Yokudweba Imigqa
Isibambo Sebhentshi
Uwoyela wokusika5
5
File the ways
File the ways
Along the bottom bar, between the posts, file a groove 2 mm deep and 4 mm high in both faces, 3 mm below the top edge. This leaves a T-shaped rib along the top: the ways. Keep it straight and the same all along, so the slide runs smoothly from end to end.
Amathuluzi adingekayo:
Iqoqo Lamafayela
Isethi Yamafayela AmancaneIsibambo Sebhentshi
I-Caliper Yedijithali Yamayintshi Ayi-66
6
Turn the cutting wheel
Turn the cutting wheel
Chuck a tool steel bar and face it. Turn the end to 20 mm across for 10 mm, centre drill and drill a 5 mm hole 10 mm deep, and turn the edge to a 50 degree vee, 25 degrees each side, sharp in the middle of the 6 mm width. Part it off 6 mm long and take the burr off the hole.
Izinto zokwakha zalesi sinyathelo:
Induku yensimbi yamathulusi1 ucezuAmathuluzi adingekayo:
Umshini Wokuphendula Insimbi
Isibambi somshini wokuphenda esinemilomo emithathu
Ithuluzi lokusika le-lathe
Insimbi yokuhlukanisa emshinini wokuphotha
Isethi yamabhitha okuqala imboboIqoqo Lamakhanda EbholaI-Caliper Yedijithali Yamayintshi Ayi-6
Izibuko zokuphepha7
7
Make the reamer
Make the reamer
Saw a triangle with 22 mm sides from 3 mm flat tool steel and drill its 4 mm hole. Grind each edge to a 60 degree bevel from both sides, so all three edges cut. Saw a 3 mm wide slot, 22 mm long and 8 mm deep, in the middle of the frame's bottom edge, 50 mm from the wheel end, and drill the 4 mm pin hole across it.
Izinto zokwakha zalesi sinyathelo:
Induku eyisicaba yensimbi yamathuluzi1 ucezuAmathuluzi adingekayo:
Isaha Sensimbi
Umshini wokugaya wetafulaIbhola ElimileIqoqo Lamakhanda EbholaIqoqo LamafayelaIzibuko zokuphepha8
8
Harden and temper
Harden and temper
Heat the wheel and the reamer to a cherry red, until a magnet no longer sticks, and quench it in water, moving it about. Rub it bright with a stone, warm it on a piece of steel plate over the fire, and quench again as soon as it turns a light straw colour.
Amathuluzi adingekayo:
Iziko Lokukhanda
Udlawu Lomkhandi
Uzibuthe Omncane
Ibhakede lokupholisa
Amanzi
Itshe Lokulola
Amagilavu okushiselaIzibuko zokuphepha9
9
Make the slide halves
Make the slide halves
Saw two pieces of 10 mm plate to the slide outline, one the mirror of the other, and file the V. On the inner face of each, saw and file a pocket for half the screw head and a slot for its neck. Saw and file a step along the bottom edge of each half so its lip fits the groove under the ways (end section on the template). File a shallow notch in the outer face of each half, beside the V, for the clip's tongues.
Izinto zokwakha zalesi sinyathelo:
Ishidi lensimbi ethambile1 ucezuAmathuluzi adingekayo:
Isaha SensimbiIqoqo LamafayelaIsethi Yamafayela AmancaneIsibambo SebhentshiI-Caliper Yedijithali Yamayintshi Ayi-6Insimbi Yokudweba Imigqa10
10
Bend the V clip
Bend the V clip
Cut the clip blank from 0.5 mm spring steel strip. Bend the four tongues up at right angles, then fold the blank to 90 degrees on the dashed line, over the slide's V.
Izinto zokwakha zalesi sinyathelo:
Umucu wensimbi yensipho1 ucezuAmathuluzi adingekayo:
Isaha SensimbiIqoqo LamafayelaIsibambo Sebhentshi
Isando esinekhanda eliyindilinga11
11
Make the feed screw
Make the feed screw
Cut 120 mm of M10 threaded rod. Chuck it and turn the end to a 9 mm head 4 mm long on a 6 mm neck 3 mm long. Drill a 6 mm hole across the other end and push a 70 mm piece of 6 mm rod through it for the T-handle. Peen it both sides so it stays put.
Izinto zokwakha zalesi sinyathelo:
Insika enemicu yesikulufu1 ucezu
Ubhamu Oluyindilinga Lwensimbi Ethambile1 ucezuAmathuluzi adingekayo:
Umshini Wokuphendula InsimbiIsibambi somshini wokuphenda esinemilomo emithathuIthuluzi lokusika le-latheInsimbi yokuhlukanisa emshinini wokuphothaIbhola ElimileIqoqo Lamakhanda EbholaIsando esinekhanda eliyindilingaIsaha Sensimbi12
12
Assemble
Assemble
Fit the wheel in its slot with the 5 mm pin, and the 4 mm tie pin above it, peened. Tap the reamer into its slot and pin it. Screw the feed screw through the boss. Put the halves on the ways from the sides, closing them round the screw head, and spring the clip over their V so its tongues snap into the notches. Oil the ways and the screw.
Izinto zokwakha zalesi sinyathelo:
Isipikili sensimbi sokuqondisa3 izicucuAmathuluzi adingekayo:
Isando esinekhanda eliyindilingaIsibhoboza SesikhungoIsibambo SebhentshiUwoyela wokusika13
13
Cut a copper tube
Cut a copper tube
Mark a copper tube and hold it in a vice with soft jaws, or by hand for small tubes. Open the screw, drop the cutter over the tube, and screw the slide in until the wheel just touches. Turn the cutter once round, give the screw about a quarter turn, and go on until the tube parts. The wheel should run in its own groove; the end should be square and not squeezed oval. Clean the inside of the end with a deburring tool.
Izinto zokwakha zalesi sinyathelo:
Ishubhu lethusi1 ucezuAmathuluzi adingekayo:
Isibambo Sebhentshi
Ithuluzi lokususa amabhadiI-Caliper Yedijithali Yamayintshi Ayi-614
14
Ream the end
Ream the end
Hold the frame like a T-handle, put the reamer's point in the cut end, and turn it a few times to take off the fin the wheel has turned in.
Amathuluzi adingekayo:
Isibambo Sebhentshi15
15
Troubleshooting
Troubleshooting
Tubing cutter troubleshooting.
Flow
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16
History and honest limits
History and honest limits
**William O. Thewes** of North Ridgeville, Ohio, US 2,130,934, dated 20 September 1938, filed 4 November 1935, assigned to The Ridge Tool Company. Earlier slides needed notched ways, which weaken the frame, or bolts that come loose; he claimed "a V block reciprocable on the guideway and comprising two sections, and a face plate clamping said sections together". A later certificate corrects "same" to "frame" and "base" to "boss". His frame and slide were die cast and the reamer cast into the frame; ours are sawn from plate and the reamer is pinned. The patent gives no sizes; all of ours are ours.
Izinto
8- 1 ucezuIsibambeli
- 1 ucezuIsibambeli
- Isibambeli
- 1 ucezuIsibambeli
- 1 ucezuIsibambeli
- Isibambeli
- 3 izicucuIsibambeli
- 1 ucezuIsibambeli
Amathuluzi Adingekayo
28- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
Amafayela omklamo
1Le blueprint yenza
Ama-blueprint ahlobene
Lama-blueprint abelana ngolwazi — amasu, izinto noma izimiso
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