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Member postings for Steve Wan

Here is a list of all the postings Steve Wan has made in our forums. Click on a thread name to jump to the thread.

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Thread: Roller press - gear drive design?
26/08/2011 06:43:26
Hi comadres,
 
Back again for more answers! Wonder any kind soul out there that owns a roller press whether an etching press or sheet roller press or lamination press or block print press...all of which share a similar feature. That's the rollers of a fixed position and an adjustable roller. Both internal meshing gearings are always in contact whenever the rollers are apart in any height. How's this possible? I know there's another idle gear in its place but how this gear is postioned and able to swivel or perhaps using a chain drive with a tensioner gear? If only gears were used, I'm sure the gear teeth are rather longer than normal gears...how to cut these special gears?!
 
This issue has been bothering me for awhile now, wanted to make some nice fresh milk bread with a DIY dough press...stuck at this point!
 
Appreciates anyone to advise and will definately deliver my 1st successful loaf of fresh bread to you
 
Steve
Thread: Small machine casting kits supplier in UK?
16/08/2011 12:16:29
Hi David
 
Seems you know Bristol Foundary very well! Are you one of his regular customer?
Do you often do casting projects too?
 
I'm new to casting and do need some pointers. Do you mind to pte email me so that I could learn more from you at your free time?
 
I hear from you,
Steve from Singapore
16/08/2011 10:26:34
Hi David
 
Many thanks! As for College Engineering I did have some cast from them years ago.
I have emailed to Bristol Foundary whether they accept small/few pieces cast job for my small machine construction.
 
Steve
16/08/2011 07:43:56
Hi buddies
 
Wonder is there any good machine casting kits in the UK? Kits that offers similar standard to Hemingway Kits but for smaller range that could be used on lathes of Unimats or Sherline?
 
Casting kits of machine parts or add on machine toolings.
Thanks inadvance for any leads.
 
Steve
Thread: MD 65 Hobbymat Slow Speed attachment design?
03/08/2011 07:16:18
Hi Windy and Steve Garnett
 
Many thanks for the help especially Windy with that pte message. I will study the drawing and see whether I could implement it to my small Sherline lathe. If sucessful, I have added more power to this faithful machine which have been serving me for 16 yrs.
 
Steve
02/08/2011 11:05:41
Hi Ady
 
I saw this website, did email to Tony, doubtful he would help.
I need the know the mechanical design for pulley adjustment.
 
Thanks Ady
 
Steve
02/08/2011 09:35:18
Hi folks
 
Wonder could anyone give me a guide of the Hobbymat slow speed attachment design? How does the 3 pulleys be adjusted with 2 running belts?
 
I'm making a smaller version for my Sherline lathe. I find a tough time adjusting the tension of 2 belts as they slag easily after some run.
 
Appreciate any help here.
 
Steve-S'pore
Thread: Building a small hydraulic press?
27/07/2011 02:49:50
Hi Ady
 
Many thanks for the safety tips! I think I will call off the idea making one. I shall use either a sash cast iron clamp or a heavy duty table vise instead or make a small flywheel screw press. Just like gas welding, though I attended a year in welding, I see the danger doing it at home workshop.
 
Steve-S'pore
26/07/2011 12:07:22
Hi folks,
 
Has anyone built a mini press using bottle hydraulic jack, like those from a car jack? Something small and compact rather using the traditional fly press.
 
Objective: To force fit parts together rather using a table vise, as may damage the vise's threads for long runs. Also it has an adjustable height for holding the press part. What's the smallest tonnage for this type of jack?
 
Any comments is appreciated!
 
Steve-S'pore
 
 
Thread: Building a hand drill press
09/06/2011 09:40:13
Hi Nick (Nicholas Farr)
 
Good News! I bought all the necessary gears to build a 2 speeds hand crank-hand drill. But will prefers using a screw hand feed instead of the auto-feeding you had shown as it's too complicated to make...sorry to disappoint you.
 
I'm ever grateful for your extensive photos shots which had guided me. Wonder possible you pte email me your home address so that I could send you a 'Thank you Card'.
 
 
I hear from you,
Steve
Thread: Has anyone recycled used key making machine?
01/06/2011 08:16:11
Hi guys,
 
I'm back, wanted to know has anyone converted a used key duplication machine into either a small miller or tool and cutter? Just the other day I had my keys duplicated. Both the key miller and key coping grinder looks very much like a small miller and tool and cutter design...wondering has anyone out there ever thought of it. The structure is rigid and certainly saves cost of buying a brand new machine with some innovative make-over.
 
Steve
Thread: Bench grinder/polisher/shapener advice
16/05/2011 12:48:01
Hi Martin
 
Look for Tormek grinder. This grinder runs at low speed and will never burnt out the hardness of the HSS...also building your very own grinder to sharpen mill cutters and drill bits?
 
I did and tested my grinder with good result. My design has the influence of Quorn and Deckel SO. Visit Steve's workshop photo album.
 
Steve
Thread: Building a hand drill press
16/05/2011 12:41:50
Hi Nick
 
Thanks so much! Perhaps I need to read more closely at your written texts. If I could find a youtube of this working machine will be great! Will come back to you again.
 
Hope you enjoy fully this coming Harrogate ME show! Pity I'm no where close to this place...
 
Steve
14/05/2011 21:03:12
Hi Nick
 
Many thanks for more info of the complete design of this machine! I think I discovered the basic function. I was confused by the frictional drive but infact the spinning drill spindle is based on 2 different threads used. The drilling action turns clockwise while the thread above the spindle and the flywheel turns anti-clockwise. Hence it will push the sliding drill spindle down when it engages the thread whether the drill did touch the job or not. The free turns of the flywheel before and after the cranking stops is due to backlash of the course thread.
 
The pressure of the improved spring plate above is to cut done the backlash of the flywheel. Hence the feeding action is promoted by the torgue of the weight of the flywheel and feed rate control by the pressure nut. I think one of the pic you did not fasten the lock nut of the flywheel. I think is hard to offset the gears axis if I were to make one. I noticed the biggest bevel gears was custom-made with teeth tilted so it can take the smaller bevel gear below.
 
Steve
13/05/2011 07:58:12

Hi Nick

Wow!!! Just like winning the lottery! Nick I'm ever grateful for the comprehensive info you have given...I have printed all your photos and notes. Will sit down, figure out step by step. Then decide whether I can adapt your auto-feed (most prefered) or my compound slide feed method. My order of 2 speed gears will be in by next week. Yet to figure out your last improved spring and pillar design whether the spring coil is fixed to the hex bar or the base of the fly wheel? The hex bar is pushing downwards of the main spindle? Why is the hex bar given so much allowance?

Also I like to share with you that the Germans were good at making breast drills in the 1930s, some came with a flywheel in-built inside, given more torque just amazing!

Steve


12/05/2011 03:13:06
Hi Nick
 
Thanks so much for your kind help! I will examine those photos you mentioned. What do you think of Lawrie's Post Drill? It comes with a manual feeding just like the photo below on the left.
 
I have 2 options in my hand drill press design either to go with manual feed or auto. Yet to see and understand your cleanup parts whether I could make one or simply using back my compound slide method.
 
Also heard that smaller Post drill runs by friction feeding?
That's new to me.
 
Steve
 



Thread: Adjustable Dials for Feedscrews
10/05/2011 08:07:07
Hi Buddy
 
Thanks for sharing making dials the quicker way! Just a suggestion, have you ever though of spot drilling instead of inscribing lines on the graduations?
 
I did mine at 0.1mm apart and a bigger at whole number. It is easier on the eyes for older folks and most of my work tolerances are not that critical.
 
I can achieve 0.05mm though with the help of mirco-meter and vernier dial-caliper.
 
Steve

Edited By Steve Wan on 10/05/2011 08:10:58

Thread: Building a hand drill press
10/05/2011 07:50:40
Hi Lawrie
 
Thank you for the kind help of selling your Post Drill...sorry I have to decline your offer as this morning I got the confirmed order of the 4 gears for my hand bench drill project.
 
Anyway, I'm sure others here will be interested. Since you did use for making bed for your daughther, I'm sure there're more use of it later
 
Steve
09/05/2011 13:14:45
Hi Lawrie
 
Thanks for the offer?
Before I decide, can I ask you some queries?
 
1) What's the diameter of the verticle stand that's attach to the base?
2) Does this comes with auto-feeding? Or any missing parts above the feed hand wheel? Looks like the pawl and ratchet is missing...
3) Can the main spindle be taken apart as corrosion may marry the joints.
4) Are you residing in Australia?
 
Steve
 
 
09/05/2011 11:26:39
Hi Guys, Ian, Nigel and Nick
 
I found this youtube, this is what I called-Classic drilling! Definately this will be my next project after my mill project. Will combine my sliding plates drilling design with auto-feeding just like the pawl and ratchet in the video...cool!
 
 
In case, anyone is curious about my mill project, visit the photo section-Steve's Workshop.
 
This links to Classic German's hand drill in the 1930s.
 
 
Steve
 
 
 
 

Edited By Steve Wan on 09/05/2011 11:28:50

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