Fixing an old disk drive with 3D printed parts (Tandon TM-100) @adriansdigitalbasement
Fixing an old disk drive with 3D printed parts (Tandon TM-100)  @adriansdigitalbasement
Uploaded January 2023 | Updated September 2026, 2 weeks ago
#diskdrive #3dprinting

Tandon TM-100 drives have a design flaw that causes the front lever to break, rendering the drive useless. This happened to me on one of drives, so in this video, I set out to fix it.

TM-100-1 - 48 TPI SS/DD 40 Tracks
TM-100-2 - 48 TPI DS/DD 80 Tracks
TM-100-3 - 96 TPI SS/DD 80 Tracks
TM-100-4 - 96 TPI DS/DD 160 Tracks
TM-100-3M - 100 TPI SS/DD 80 Tracks
TM-100-4M - 100 TPI DS/DD 80 Tracks per Side

--- Video Links

Tandon TM-100 door pivot point:
thingiverse.com/thing:3135233

Tandon TM-100 door:
thingiverse.com/thing:4626180

Repairing a TRS-80 Model III motherboard:
youtube.com/watch?v=EGFKjjlvKf4

Adrian's Digital Basement Merch store:
my-store-c82bd2-2.creator-spring.com

Adrian's Digital Basement ][ (Second Channel)
youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g

Support the channel on Patreon:
patreon.com/adriansdigitalbasement

-- Tools

Deoxit D5:
amzn.to/2VvOKy1
store.caig.com/s.nl/it.A/id.1602/.f

O-Ring Pick Set: (I use these to lift chips off boards)
amzn.to/3a9x54J

Elenco Electronics LP-560 Logic Probe:
amzn.to/2VrT5lW

Hakko FR301 Desoldering Iron:
amzn.to/2ye6xC0

Rigol DS1054Z Four Channel Oscilloscope:
rigolna.com/products/digital-oscilloscopes/1000z

Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier:
amzn.to/3adRbuy

TL866II Plus Chip Tester and EPROM programmer: (The MiniPro)
amzn.to/2wG4tlP
aliexpress.com/item/33000308958.html

TS100 Soldering Iron:
amzn.to/2K36dJ5
ebay.com/itm/TS100-65W-MINI-Digital-OLED-Programmable-Soldering-Iron-Anti-static-Structure/113382669853

EEVBlog 121GW Multimeter:
eevblog.com/product/121gw

DSLogic Basic Logic Analyzer:
amzn.to/2RDSDQw
ebay.com/itm/USB-Logic-DSLogic-Basic-Analyzer-16Ch-100MHz-4Ch-400MHz-Xilinx-Spartan-6-FPGA/202543965672

Magnetic Screw Holder:
amzn.to/3b8LOhG
harborfreight.com/4-inch-magnetic-parts-tray-90566.html

Universal ZIP sockets: (clones, used on my ZIF-64 test machine)
ebay.com/itm/14-16-18-20-24-28-32-40-pin-IC-Test-Universal-ZIF-Socket-Fs/303206721971

RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI)
retrotink.com

Plato (Clone) Side Cutters: (order five)
ebay.com/itm/1-2-5-10PCS-Micro-Scissor-125mm-PLATO-170-Electronics-Cutter-Side-Cutting-Pliers/163458746184

Heat Sinks:
aliexpress.com/item/32537183709.html

Little squeezy bottles: (available elsewhere too)
amzn.to/3b8LOOI

--- Links

My GitHub repository:
github.com/misterblack1?tab=repositories

Commodore Computer Club / Vancouver, WA – Portland, OR – PDX Commodore Users Group
commodorecomputerclub.com

--- Instructional videos

My video on damage-free chip removal:
youtube.com/watch?v=XQVjwPsVFd8

--- Music

Intro music and other tracks by:
Nathan Divino
@itsnathandivino
Fixing an old disk drive with 3D printed parts (Tandon TM-100)Tech archeology: Exploring mysterious computer partsA brand new XT RAM test ROM and an update on some unfixable partsPC Archeology: A left for Dead IBM PC 5150 with a treasure hiding inside 🕷Repair of a Mac Plus with a mysterious faultSparks fly while I crash and burn fixing a 386SX motherboardRebuilding a battered Amiga 1200BBC Master 128: The evolved 8-bit computer from AcornThis Apple IIgs repair got really weirdI finally fixed the Laser 200 (plus gave it a 32K RAM upgrade)I replaced the main board of this TV with brand new parts made in 2023!PC Archeology: Sperry PC XT clone aka Sperry Personal Computer 3070-02
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Fixing an old disk drive with 3D printed parts (Tandon TM-100)

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